section 24 timing belt drive selection ... 146 section 24 timing belt drive selection procedure step...
TRANSCRIPT
TÐ146
SECTION 24 TIMING BELT DRIVE SELECTION PROCEDURE
Step 1 Determination of design load
Drives consist of a driver and a driven pulley. In general, both pulleys are not of the samesize; therefore, a speed reduction or increase occurs. Both convey the same power; however, thetorque on each pulley is different. Drive designs should be based on the smaller pulley which willbe subject to higher speed.
The peak design load must be taken into account, and it is obtained by multiplying the torqueby a service factor. Service factors between 1.5 and 2.0 are generally recommended whendesigning small pitch synchronous drives. Knowledge of drive loading characteristics should influencethe actual value selected. A higher service factor should be selected for applications with highpeak loads, high operating speeds, unusually severe operating conditions, etc. Lower servicefactors can be used when the loading is smooth, well defined, etc. and the reliability is less critical.Some designs may require service factors outside the 1.5 to 2.0 range, depending upon the natureof the application.
If a stall torque of the driver is not given but the nameplate horsepower or kW power consumptionis known, the torque can be obtained from:
63.025 x Shaft HPT (lb⋅in) = ÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐÐ (24-1)
Shaft rpm
T (lb⋅in) = 8.85 x T (N⋅m) or (24-2)
T (oz⋅in) = 16 x T (lb⋅in) (24-3)
Tpeak = T x Service Factor (24-4)
1 kW = 1.341 HP (24-5)
Step 2 Choice of belt pitch
As shown in Figure 4, (page T-6) different belt pitches can satisfy the same horsepowerrequirements, also taking into account the speed of the faster shaft. The choice is somewhatindividual and may take into account, among others, the following factors:
¥ compatibility with previous designs¥ superiority of GT drives as far as noise, backlash, positioning accuracy, etc. is concerned¥ local availability for replacement¥ size limitations; i.e. the size of pulleys and of the entire drive will be optimized if GT2 or
HTD pitches are used
Step 3 Check belt pitch selection based on individual graphs
Graphs shown on Figures 41 through 43 show the peak torque, Tpeak computed previously,plotted against the speed of faster shaft. Since the belt pitch was chosen in Step 2, reference tothese graphs will confirm the validity of the selection.
As an example, assume that the following data was obtained: T peak = 5 lb⋅⋅⋅⋅⋅in and 1000 rpm.The potential choices are: 2 mm GT2, 3 mm HTD, or XL. The 2 mm drive will be substantiallysmaller than the other choices.
Step 4 Determine speed ratio
Use our Web site, www.sdp-si.com, or Drive Ratio Tables shown in SECTION 21, starting atpage T-72, and establish the number of teeth of the small and large pulley based on the chosenspeed ratio. Attempt to use available stock sizes for best economy. Use of our Web site willimmediately guide you to the appropriate catalog page and part number. Make note of the PitchDiameter (PD) of the small pulley.
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Belt Technical Information
1 2 3 4 5 7 10 20 30 40 50 70 100 200 300 400 500 (lb ¥ in)0.11 0.23 0.34 0.45 0.57 0.79 1.1 2.3 3.4 4.5 5.7 7.9 11 23 34 45 57 (N ¥ m)
14,000
12,000
10,0009,0008,000
7,000
6,000
5,000
4,000
3,000
2,000
1,000900800700
600
500
400
300
200
100
rpm
of
Fas
ter
Sh
aft
Design Torque (Tpeak)
Fig. 41 GT2 Belt Selection Guide
2 mm GT2 3 mm GT2 5 mm GT2
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Fig. 42 HTD Belt Selection Guide
0 50 100 150 200 250 300 350 (lb ¥ in) 5.7 11 17 23 28 34 40 (N ¥ m)
rpm
of
Fas
ter
Sh
aft
30,000
20,000
10,000
8,000
6,000
5,000
4,000
3,000
2,000
1,000
800
600
500
400
300
200
100
3,450 rpm
1,750 rpm
1,160 rpm
870 rpm
3 mm HTD 5 mm HTD
Design Torque (Tpeak)
Belt Technical Information
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Fig. 43 Trapezoidal Belt Selection Guide
0 2 4 6 8 10 12 14 (lb ¥ in) 32 64 96 128 160 192 224 (oz ¥ in) 0.23 0.45 0.68 0.9 1.13 1.35 1.58 (N ¥ m)
rpm
of
Fas
ter
Sh
aft
30,000
20,000
10,000
8,000
6,000
5,000
4,000
3,000
2,000
1,000
800
600
500
400
300
200
100
3,450 rpm
1,750 rpm
1,160 rpm
870 rpm
XL (.200")
Design Torque (Tpeak)
Belt Technical Information
MXL + 40 D.P.(.080" & .0816")
TÐ150
Step 5 Check belt speed
Belt speeds up to 6,500 fpm (33.02 m/s) do not require special pulleys. Speeds higher thanthese require special pulley materials and dynamic balancing.
Speed is computed using the following equations:
V(fpm) = 0.262 x pulley PD (in) x pulley rpm (24-5)
V(m/s) = 0.0000524 x pulley PD (mm) x pulley rpm (24-6)
where: m/s = 0.00508 x fpm (24-7)
Step 6 Determine belt length
The design layout may govern the determination of the belt length. Since the pulley sizes areknown, use of Center Distance Factor Tables shown in SECTION 23 (starting on page T-81) willyield NB Ð the number of teeth of the belt. If a fractional number is obtained, the closest integernumber should be chosen, and the calculation must be repeated to obtain the new center distancefor the design.
It is worthwhile to check if a belt with the chosen number of teeth is available in this Handbook.If it is not available, the closest fitting belt size must be chosen, and the calculation must berepeated to establish the center distance to which the layout must be corrected to accommodatethe available choice of belt.
Step 7 Determine the belt width
The number of grooves of the small pulley as well as the rpm of the faster shaft on which thispulley is located are known. Tables 43 through 52 show the torque and/or horsepower or kilowattratings for the base width of particular belt pitches.
For the HTD and GT2 drives, the torque ratings shown in these tables must be multiplied bythe length correction factor. This factor is a number smaller than 1 for shorter length and higher forlonger belts. This reflects the fact that a longer belt will be less prone to wear and tear as opposedto a shorter belt.
When the given torque from the table is multiplied by the length correction factor, this figuremay be smaller or larger than the previously computed peak torque Tpeak. If it is smaller, a beltnarrower than the base width can be used. Alternatively, if Tpeak is larger, a wider belt must bespecified. In order to finalize the belt width, the width multiplier given on the particular table itselfmust be used. Also, consult the appropriate belt product page for availability of standard widths.We are able to supply nonstandard width belts as well as nonstandard width pulleys, if desired.
In any event, the torque ratings given in the table multiplied by the length factor and by thewidth multiplier must yield a torque greater than the Tpeak computed previously.
The torque or horsepower ratings are based on 6 or more teeth in mesh for the smaller pulley.
Step 8 Check the number of teeth in mesh
The arc of contact on the smaller pulley in degrees can be found as follows:
60 (PD Ð pd )Arc of Contact = 180 Ð (ÐÐÐÐÐÐÐÐÐÐÐÐ) (degrees) (24-8)
C
where: PD = Large pitch diameter, inchespd = Small pitch diameter, inchesC = Drive center distance, inches
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The number of teeth in mesh on the smaller pulley can be found as follows:
(Arc) (n)Teeth in Mesh = ÐÐÐÐÐÐÐÐ (24-9)
360
where: Arc = Arc of contact; small pulley, degreesn = number of grooves, small pulley
Drop any fractional part and use only the whole number as any tooth not fully engaged cannotbe considered a working tooth.
If the teeth in mesh is less than 6, correct the belt torque rating with the following multiplicationfactors:
5 teeth in mesh .............. multiply by 0.84 teeth in mesh .............. multiply by 0.63 teeth in mesh .............. multiply by 0.42 teeth in mesh .............. suggest redesign1 tooth in mesh .............. suggest redesign
Step 9 Determine proper belt installation tension
Procedure to calculate proper belt installation tension for specific applications are included inSECTION 10, on page T50.
Step 10 Check availability of all components
For the specified parts, both pulleys and belt, obtain part numbers from the Handbook or ourWeb site (www.sdp-si.com). In case special sizes or alterations are needed, contact SDP/SIApplication Engineering Department.
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12 7.64
0.30
10.
900.
890.
870.
860.
850.
830.
820.
810.
800.
800.
790.
790.
780.
780.
780.
770.
770.
760.
760.
760.
750.
750.
750.
740.
730.
730.
720.
72
14 8.91
0.35
11.
091.
071.
051.
031.
021.
000.
990.
980.
970.
970.
960.
950.
940.
940.
940.
930.
930.
920.
920.
920.
910.
910.
900.
900.
890.
880.
880.
87
1610
.19
0.40
11.
271.
251.
221.
211.
191.
171.
151.
141.
141.
131.
121.
111.
111.
101.
101.
091.
091.
081.
081.
071.
071.
061.
061.
051.
041.
031.
031.
02
1811
.46
0.45
11.
451.
421.
401.
381.
361.
341.
321.
311.
301.
291.
281.
271.
271.
261.
261.
251.
251.
241.
231.
231.
221.
221.
211.
201.
191.
181.
181.
17
10
20
40
60
1
00
200
3
00
400
5
00
600
8
00 1
000
120
0 1
400
160
0 1
800
200
0 2
400
280
0 3
200
360
0 4
000
500
0 6
000
800
010
000
1200
014
000
rpm of
Fas
test
Sh
aft
[Tab
ula
ted
valu
es a
rein
lb⋅⋅⋅⋅ ⋅in
]
Tab
le 4
3
Rat
ed T
orq
ue
(lb⋅⋅⋅⋅ ⋅in
) fo
r S
mal
l Pu
lleys
— 6
mm
Bel
t W
idth
2012
.73
0.50
11.
631.
601.
571.
551.
531.
501.
491.
471.
461.
461.
441.
431.
431.
421.
411.
411.
411.
401.
391.
391.
381.
381.
371.
361.
351.
341.
331.
32
2415
.28
0.60
21.
991.
961.
921.
901.
881.
841.
821.
811.
791.
781.
771.
761.
751.
741.
731.
731.
721.
711.
711.
701.
691.
691.
681.
671.
651.
641.
631.
62
2817
.83
0.70
22.
352.
312.
272.
252.
222.
172.
152.
132.
122.
112.
092.
082.
072.
062.
052.
042.
042.
032.
022.
012.
002.
001.
981.
971.
951.
941.
931.
92
3220
.37
0.80
22.
712.
662.
622.
592.
552.
512.
482.
462.
442.
432.
412.
402.
382.
372.
362.
362.
352.
342.
332.
322.
312.
302.
292.
272.
252.
242.
222.
21
3622
.92
0.90
23.
073.
012.
962.
932.
892.
842.
812.
782.
772.
752.
732.
712.
702.
692.
682.
672.
662.
652.
632.
622.
622.
612.
592.
582.
552.
532.
522.
51
4025
.46
1.00
33.
433.
373.
313.
273.
233.
173.
143.
113.
093.
083.
053.
033.
023.
002.
992.
982.
972.
962.
952.
932.
922.
912.
902.
882.
852.
832.
822.
80
4830
.56
1.20
34.
134.
063.
993.
953.
903.
833.
793.
763.
733.
723.
693.
663.
643.
633.
623.
603.
593.
573.
563.
543.
533.
523.
503.
483.
453.
423.
403.
38
5635
.65
1.40
44.
844.
764.
684.
634.
574.
494.
444.
404.
384.
354.
324.
294.
274.
254.
244.
224.
214.
194.
174.
154.
144.
134.
104.
084.
044.
013.
983.
96
6440
.74
1.60
45.
555.
455.
365.
305.
235.
145.
085.
045.
014.
994.
954.
924.
894.
874.
854.
844.
824.
804.
784.
764.
744.
734.
704.
674.
634.
594.
564.
53
7245
.84
1.80
56.
256.
146.
045.
985.
905.
795.
735.
685.
655.
625.
585.
545.
525.
495.
475.
455.
445.
415.
385.
365.
355.
335.
295.
265.
215.
175.
14 —
8050
.93
2.00
56.
956.
836.
716.
646.
566.
446.
376.
326.
286.
256.
206.
166.
136.
116.
086.
066.
056.
015.
995.
965.
945.
925.
885.
855.
795.
755.
70 —
Bel
t W
idth
(m
m)
Wid
th M
ult
iplie
r4
0.67
61.
009
1.50
12 2.00
The
fol
low
ing
tabl
e re
pres
ents
the
tor
que
ratin
gs f
or e
ach
belt,
in it
s ba
se w
idth
, at
the
pred
eter
min
ed n
umbe
r of
gro
oves
, pi
tch
diam
eter
s an
d rp
m's
. T
hese
rat
ings
mus
t be
mul
tiplie
d by
the
app
ropr
iate
wid
th f
acto
r an
d ap
plic
able
bel
t le
ngth
fac
tor
to o
btai
n th
e co
rrec
ted
torq
ue r
atin
g (s
ee S
tep
7 o
f SE
CT
ION
24,
on
page
T-1
50).
2 m
m P
itch
Pow
erG
rip®
GT®
2 B
elts
Con
tinue
d on
the
next
pag
e
Nu
mb
er o
f G
roo
ves
Pit
chD
iam
eter
mm
inch
es
100
50
104
52
0.70
Len
gth
Co
rrec
tio
n F
acto
r
106
53
122
61
0.75
124
62
144
72
0.80
146
73
168
84
0.85
170
85
196
98
0.90
198
99
230
115
0.95
232
116
270
135
1.00
272
136
316
158
1.05
318
159
370
185
1.10
372
186
434
217
1.15
436
218
508
254
1.20
510
255
596
298
1.25
598
299
696
348
1.30
698
349
800
400
1.35
Fo
r B
elt
Len
gth
Fro
m
To
Leng
th (m
m)
# of
teet
hLe
ngth
(mm
)#
of te
eth
T–153
TEC
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12 7.64
0.30
10.
100.
100.
100.
100.
100.
090.
090.
090.
090.
090.
090.
090.
090.
090.
090.
090.
090.
090.
090.
090.
090.
080.
080.
080.
080.
080.
080.
08
14 8.91
0.35
10.
120.
120.
120.
120.
120.
110.
110.
110.
110.
110.
110.
110.
110.
110.
110.
110.
100.
100.
100.
100.
100.
100.
100.
100.
100.
100.
100.
10
1610
.19
0.40
10.
140.
140.
140.
140.
130.
130.
130.
130.
130.
130.
130.
130.
120.
120.
120.
120.
120.
120.
120.
120.
120.
120.
120.
120.
120.
120.
120.
12
1811
.46
0.45
10.
160.
160.
160.
160.
150.
150.
150.
150.
150.
150.
140.
140.
140.
140.
140.
140.
140.
140.
140.
140.
140.
140.
140.
140.
130.
130.
130.
13
10
20
40
60
1
00
200
3
00
400
5
00
600
8
00 1
000
120
0 1
400
160
0 1
800
200
0 2
400
280
0 3
200
360
0 4
000
500
0 6
000
800
010
000
1200
014
000
2012
.73
0.50
10.
180.
180.
180.
180.
170.
170.
170.
170.
170.
160.
160.
160.
160.
160.
160.
160.
160.
160.
160.
160.
160.
160.
150.
150.
150.
150.
150.
15
2415
.28
0.60
20.
230.
220.
220.
210.
210.
210.
210.
200.
200.
200.
200.
200.
200.
200.
200.
200.
190.
190.
190.
190.
190.
190.
190.
190.
190.
190.
180.
18
2817
.83
0.70
20.
270.
260.
260.
250.
250.
250.
240.
240.
240.
240.
240.
230.
230.
230.
230.
230.
230.
230.
230.
230.
230.
230.
220.
220.
220.
220.
220.
22
3220
.37
0.80
20.
310.
300.
300.
290.
290.
280.
280.
280.
280.
270.
270.
270.
270.
270.
270.
270.
270.
260.
260.
260.
260.
260.
260.
260.
250.
250.
250.
25
3622
.92
0.90
20.
350.
340.
330.
330.
330.
320.
320.
310.
310.
310.
310.
310.
310.
300.
300.
300.
300.
300.
300.
300.
300.
290.
290.
290.
290.
290.
280.
28
4025
.46
1.00
30.
390.
380.
370.
370.
360.
360.
350.
350.
350.
350.
340.
340.
340.
340.
340.
340.
340.
330.
330.
330.
330.
330.
330.
330.
320.
320.
320.
32
4830
.56
1.20
30.
470.
460.
450.
450.
440.
430.
430.
420.
420.
420.
420.
410.
410.
410.
410.
410.
410.
400.
400.
400.
400.
400.
400.
390.
390.
390.
380.
38
5635
.65
1.40
40.
550.
540.
530.
520.
520.
510.
500.
500.
490.
490.
490.
490.
480.
480.
480.
480.
480.
470.
470.
470.
470.
470.
460.
460.
460.
450.
450.
45
6440
.74
1.60
40.
630.
620.
610.
600.
590.
580.
570.
570.
570.
560.
560.
560.
550.
550.
550.
550.
540.
540.
540.
540.
540.
530.
530.
530.
520.
520.
520.
51
7245
.84
1.80
50.
710.
690.
680.
680.
670.
650.
650.
640.
640.
640.
630.
630.
620.
620.
620.
620.
610.
610.
610.
610.
600.
600.
600.
590.
590.
580.
58 —
8050
.93
2.00
50.
790.
770.
760.
750.
740.
730.
720.
710.
710.
710.
700.
700.
690.
690.
690.
690.
680.
680.
680.
670.
670.
670.
660.
660.
660.
650.
64 —
Tab
le 4
3 (C
ont.)
R
ated
To
rqu
e (N
⋅⋅⋅⋅ ⋅m)
for
Sm
all P
ulle
ys —
6 m
m B
elt
Wid
th
Bel
t W
idth
(m
m)
Wid
th M
ult
iplie
r4
0.67
61.
009
1.50
12 2.00
The
fol
low
ing
tabl
e re
pres
ents
the
tor
que
ratin
gs f
or e
ach
belt,
in it
s ba
se w
idth
, at
the
pred
eter
min
ed n
umbe
r of
gro
oves
, pi
tch
diam
eter
s an
d rp
m's
. T
hese
rat
ings
mus
t be
mul
tiplie
d by
the
app
ropr
iate
wid
th f
acto
r an
d ap
plic
able
bel
t le
ngth
fac
tor
to o
btai
n th
e co
rrec
ted
torq
ue r
atin
g (s
ee S
tep
7 o
f SE
CT
ION
24,
on
page
T-1
50).
2 m
m P
itch
Pow
erG
rip®
GT®
2 B
elts
Nu
mb
er o
f G
roo
ves
Pit
chD
iam
eter
mm
inch
es
rpm of
Fas
test
Sh
aft
[Tab
ula
ted
valu
es a
rein
N⋅⋅⋅⋅ ⋅m
]
100
50
104
52
0.70
Len
gth
Co
rrec
tio
n F
acto
r
106
53
122
61
0.75
124
62
144
72
0.80
146
73
168
84
0.85
170
85
196
98
0.90
198
99
230
115
0.95
232
116
270
135
1.00
272
136
316
158
1.05
318
159
370
185
1.10
372
186
434
217
1.15
436
218
508
254
1.20
510
255
596
298
1.25
598
299
696
348
1.30
698
349
800
400
1.35
Fo
r B
elt
Len
gth
Fro
m
To
Leng
th (m
m)
# of
teet
hLe
ngth
(mm
)#
of te
eth
T–154
TEC
HN
ICA
L S
EC
TIO
N
1615
.28
0.60
214
.02
12.8
211
.62
10.9
110
.03
8.8
3 8
.12
7.6
3 7
.24
6.9
2 6
.43
6.0
4 5
.72
5.4
6 5
.22
5.0
2 4
.84
4.5
2 4
.25
4.0
2 3
.81
3.6
3 3
.24
2.9
1 2
.40
1.9
9 1
.64
1.3
4
1817
.19
0.67
716
.27
14.9
213
.57
12.7
811
.78
10.4
3 9
.64
9.0
8 8
.65
8.2
9 7
.73
7.3
0 6
.94
6.6
4 6
.38
6.1
5 5
.94
5.5
9 5
.28
5.0
2 4
.79
4.5
8 4
.14
3.7
7 3
.19
2.7
2 2
.32
1.9
8
Nu
mb
er o
f G
roo
ves
Pit
chD
iam
eter
mm
inch
es
10
20
40
60
100
2
00
300
4
00
500
6
00
800
100
0 1
200
140
0 1
600
180
0 2
000
240
0 2
800
320
0 3
600
400
0 5
000
600
0 8
000
1000
012
000
1400
0
Tab
le 4
4
Rat
ed T
orq
ue
(lb⋅⋅⋅⋅ ⋅in
) fo
r S
mal
l Pu
lleys
— 6
mm
Bel
t W
idth
2019
.10
0.75
218
.50
17.0
015
.50
14.6
213
.51
12.0
111
.14
10.5
110
.03
9.6
4 9
.01
8.5
3 8
.14
7.8
0 7
.51
7.2
6 7
.03
6.6
3 6
.29
6.0
0 5
.74
5.5
1 5
.02
4.6
1 3
.95
3.4
2 2
.97
2.5
7
2422
.92
0.90
222
.89
21.0
919
.29
18.2
416
.91
15.1
114
.06
13.3
212
.74
12.2
611
.52
10.9
410
.46
10.0
6 9
.71
9.4
0 9
.13
8.6
5 8
.25
7.9
0 7
.58
7.3
0 6
.71
6.2
1 5
.40
4.7
4 4
.17
3.6
6
3028
.65
1.12
829
.38
27.1
324
.88
23.5
621
.90
19.6
518
.34
17.4
016
.68
16.0
915
.15
14.4
313
.83
13.3
312
.89
12.5
112
.16
11.5
611
.05
10.6
110
.22
9.8
6 9
.10
8.4
6 7
.41
6.5
3 5
.75
5.0
3
3432
.47
1.27
833
.61
31.0
628
.51
27.0
225
.14
22.5
921
.10
20.0
419
.22
18.5
517
.49
16.6
715
.99
15.4
214
.93
14.4
914
.10
13.4
212
.84
12.3
311
.88
11.4
810
.60
9.8
6 8
.63
7.5
9 6
.64
5.7
5
3836
.29
1.42
937
.82
34.9
732
.12
30.4
528
.35
25.5
023
.83
22.6
521
.73
20.9
819
.79
18.8
718
.12
17.4
816
.93
16.4
416
.00
15.2
314
.58
14.0
113
.50
13.0
412
.05
11.2
0 9
.77
8.5
5 7
.41
6.3
3
4442
.02
1.65
444
.00
40.7
037
.41
35.4
833
.04
29.7
427
.81
26.4
425
.38
24.5
123
.14
22.0
721
.20
20.4
619
.81
19.2
418
.73
17.8
417
.08
16.4
115
.81
15.2
714
.09
13.0
711
.33
9.7
8 8
.32
6.8
9
5047
.75
1.88
050
.13
46.3
842
.63
40.4
437
.67
33.9
231
.73
30.1
728
.96
27.9
726
.41
25.2
024
.20
23.3
622
.62
21.9
721
.39
20.3
719
.49
18.7
218
.03
17.4
016
.02
14.8
112
.70
10.7
9 8
.93
—
5653
.48
2.10
556
.15
51.9
547
.75
45.3
042
.20
38.0
035
.54
33.8
032
.45
31.3
429
.59
28.2
327
.11
26.1
625
.34
24.6
023
.94
22.7
921
.80
20.9
320
.14
19.4
117
.81
16.4
013
.89
11.5
4— —
6461
.12
2.40
664
.10
59.3
054
.50
51.6
948
.15
43.3
540
.54
38.5
537
.00
35.7
333
.73
32.1
730
.89
29.8
028
.85
28.0
127
.25
25.9
124
.76
23.7
422
.81
21.9
520
.04
18.3
215
.17
12.1
3— —
7268
.75
2.70
771
.93
66.5
361
.13
57.9
854
.00
48.6
045
.43
43.1
941
.45
40.0
237
.76
36.0
034
.56
33.3
232
.25
31.2
930
.43
28.9
027
.58
26.4
025
.32
24.3
222
.05
19.9
816
.09
— — —
8076
.39
3.00
879
.67
73.6
867
.68
64.1
759
.74
53.7
450
.23
47.7
345
.79
44.2
141
.69
39.7
338
.12
36.7
435
.54
34.4
633
.49
31.7
730
.27
28.9
227
.68
26.5
223
.86
21.3
916
.64
— — —
Bel
t W
idth
(m
m)
Wid
th M
ult
iplie
r6
1.00
91.
5012 2.00
The
fol
low
ing
tabl
e re
pres
ents
the
tor
que
ratin
gs f
or e
ach
belt,
in it
s ba
se w
idth
, at
the
pred
eter
min
ed n
umbe
r of
gro
oves
, pi
tch
diam
eter
s an
d rp
m's
. T
hese
rat
ings
mus
t be
mul
tiplie
d by
the
app
ropr
iate
wid
th f
acto
r an
d ap
plic
able
bel
t le
ngth
fac
tor
to o
btai
n th
e co
rrec
ted
torq
ue r
atin
g (s
ee S
tep
7 o
f SE
CT
ION
24,
on
page
T-1
50).
15 2.50
2624
.83
0.97
725
.06
23.1
121
.16
20.0
218
.59
16.6
415
.50
14.6
914
.06
13.5
512
.74
12.1
111
.60
11.1
610
.78
10.4
510
.15
9.6
4 9
.20
8.8
1 8
.48
8.1
7 7
.52
6.9
8 6
.09
5.3
6 4
.73
4.1
5
2221
.01
0.82
720
.70
19.0
517
.40
16.4
415
.22
13.5
712
.61
11.9
211
.39
10.9
610
.27
9.7
4 9
.31
8.9
4 8
.62
8.3
4 8
.09
7.6
5 7
.28
6.9
6 6
.67
6.4
2 5
.87
5.4
2 4
.69
4.1
0 3
.59
3.1
3
rpm of
Fas
test
Sh
aft
[Tab
ula
ted
valu
es a
rein
lb⋅⋅⋅⋅ ⋅in
]
3 m
m P
itch
Pow
erG
rip®
GT®
2 B
elts
Con
tinue
d on
the
next
pag
e
924
308
1089
363
1.35
To
120
40
126
42
0.70
Len
gth
Co
rrec
tio
n F
acto
r
129
43
150
50
0.75
153
51
177
59
0.80
180
60
210
70
0.85
213
71
249
83
0.90
252
84
291
97
0.95
294
98
345
115
1.00
348
116
405
135
1.05
408
136
477
159
1.10
480
160
564
188
1.15
567
189
663
221
1.20
666
222
783
261
1.25
786
262
921
307
1.30
Fo
r B
elt
Len
gth
Fro
mLe
ngth
(mm
)#
of te
eth
Leng
th (m
m)
# of
teet
h
1092
364
1200
400
1.40
Sha
ded
area
indi
cate
s dr
ive
cond
ition
s w
here
red
uced
ser
vice
life
can
be
expe
cted
.
T–155
TEC
HN
ICA
L S
EC
TIO
N
1615
.28
0.60
21.
581.
451.
311.
231.
131.
000.
920.
860.
820.
780.
730.
680.
650.
620.
590.
570.
550.
510.
480.
450.
430.
410.
370.
330.
270.
220.
190.
15
1817
.19
0.67
71.
841.
691.
531.
441.
331.
181.
091.
030.
980.
940.
870.
820.
780.
750.
720.
690.
670.
630.
600.
570.
540.
520.
470.
430.
360.
310.
260.
22
2019
.10
0.75
22.
091.
921.
751.
651.
531.
361.
261.
191.
131.
091.
020.
960.
920.
880.
850.
820.
790.
750.
710.
680.
650.
620.
570.
520.
450.
390.
340.
29
2422
.92
0.90
22.
592.
382.
182.
061.
911.
711.
591.
501.
441.
391.
301.
241.
181.
141.
101.
061.
030.
980.
930.
890.
860.
830.
760.
700.
610.
540.
470.
41
3028
.65
1.12
83.
323.
062.
812.
662.
472.
222.
071.
971.
881.
821.
711.
631.
561.
511.
461.
411.
371.
311.
251.
201.
151.
111.
030.
960.
840.
740.
650.
57
3432
.47
1.27
83.
803.
513.
223.
052.
842.
552.
382.
262.
172.
101.
981.
881.
811.
741.
691.
641.
591.
521.
451.
391.
341.
301.
201.
110.
970.
860.
750.
65
3836
.29
1.42
94.
273.
953.
633.
443.
202.
882.
692.
562.
452.
372.
242.
132.
051.
971.
911.
861.
811.
721.
651.
581.
531.
471.
361.
271.
100.
970.
840.
72
4442
.02
1.65
44.
974.
604.
234.
013.
733.
363.
142.
992.
872.
772.
612.
492.
402.
312.
242.
172.
122.
021.
931.
851.
791.
731.
591.
481.
281.
110.
940.
78
5047
.75
1.88
05.
665.
244.
824.
574.
263.
833.
583.
413.
273.
162.
982.
852.
732.
642.
562.
482.
422.
302.
202.
122.
041.
971.
811.
671.
441.
221.
01 —
5653
.48
2.10
56.
345.
875.
405.
124.
774.
294.
023.
823.
673.
543.
343.
193.
062.
962.
862.
782.
712.
582.
462.
362.
282.
192.
011.
851.
571.
30 — —
6461
.12
2.40
67.
246.
706.
165.
845.
444.
904.
584.
364.
184.
043.
813.
633.
493.
373.
263.
163.
082.
932.
802.
682.
582.
482.
262.
071.
711.
37 — —
7268
.75
2.70
78.
137.
526.
916.
556.
105.
495.
134.
884.
684.
524.
274.
073.
903.
773.
643.
543.
443.
273.
122.
982.
862.
752.
492.
261.
82 — — —
8076
.39
3.00
89.
008.
327.
357.
256.
756.
075.
685.
395.
174.
994.
714.
494.
314.
154.
023.
893.
783.
593.
423.
273.
133.
002.
702.
421.
88 — — —
Bel
t W
idth
(m
m)
Wid
th M
ult
iplie
r6
1.00
91.
5012 2.00
The
fol
low
ing
tabl
e re
pres
ents
the
tor
que
ratin
gs f
or e
ach
belt,
in it
s ba
se w
idth
, at
the
pred
eter
min
ed n
umbe
r of
gro
oves
, pi
tch
diam
eter
s an
d rp
m's
. T
hese
rat
ings
mus
t be
mul
tiplie
d by
the
app
ropr
iate
wid
th f
acto
r an
d ap
plic
able
bel
t le
ngth
fac
tor
to o
btai
n th
e co
rrec
ted
torq
ue r
atin
g (s
ee S
tep
7 o
f SE
CT
ION
24,
on
page
T-1
50).
15 2.50
2624
.83
0.97
72.
832.
612.
392.
262.
101.
881.
751.
661.
591.
531.
441.
371.
311.
261.
221.
181.
151.
091.
041.
000.
960.
920.
850.
790.
690.
610.
530.
47
2221
.01
0.82
72.
342.
151.
971.
861.
721.
531.
421.
351.
291.
241.
161.
101.
051.
010.
970.
940.
910.
860.
820.
790.
750.
730.
660.
610.
530.
460.
410.
35
Tab
le 4
4 (C
ont.)
R
ated
To
rqu
e (N
⋅⋅⋅⋅ ⋅ m)
for
Sm
all P
ulle
ys —
6 m
m B
elt
Wid
th
10
20
40
60
1
00
200
3
00
400
5
00
600
8
00 1
000
120
0 1
400
160
0 1
800
200
0 2
400
280
0 3
200
360
0 4
000
500
0 6
000
800
010
000
1200
014
000
rpm of
Fas
test
Sh
aft
[Tab
ula
ted
valu
es a
rein
N⋅⋅⋅⋅ ⋅m
]
3 m
m P
itch
Pow
erG
rip®
GT®
2 B
elts
Nu
mb
er o
f G
roo
ves
Pit
chD
iam
eter
mm
inch
es
924
308
1089
363
1.35
To
120
40
126
42
0.70
Len
gth
Co
rrec
tio
n F
acto
r
129
43
150
50
0.75
153
51
177
59
0.80
180
60
210
70
0.85
213
71
249
83
0.90
252
84
291
97
0.95
294
98
345
115
1.00
348
116
405
135
1.05
408
136
477
159
1.10
480
160
564
188
1.15
567
189
663
221
1.20
666
222
783
261
1.25
786
262
921
307
1.30
Fo
r B
elt
Len
gth
Fro
mLe
ngth
(mm
)#
of te
eth
Leng
th (m
m)
# of
teet
h
1092
364
1200
400
1.40
Sha
ded
area
indi
cate
s dr
ive
cond
ition
s w
here
red
uced
ser
vice
life
can
be
expe
cted
.
T–156
TEC
HN
ICA
L S
EC
TIO
N
1828
.65
1.12
878
.24
72.3
866
.53
63.1
158
.80
52.9
449
.52
47.0
945
.20
43.6
641
.22
39.3
337
.78
36.4
735
.33
34.3
233
.41
31.8
430
.49
29.3
128
.26
27.3
125
.23
23.4
520
.43
17.7
715
.29
12.8
8
2031
.83
1.25
393
.61
87.1
180
.60
76.8
072
.01
65.5
161
.70
59.0
056
.91
55.1
952
.49
50.3
848
.66
47.2
045
.93
44.8
043
.79
42.0
340
.53
39.2
038
.02
36.9
434
.58
32.5
529
.03
25.8
822
.88
19.9
1
10
20
40
60
1
00
200
3
00
400
5
00
600
8
00 1
000
120
0 1
400
160
0 1
800
200
0 2
400
280
0 3
200
360
0 4
000
500
0 6
000
800
010
000
1200
014
000
Tab
le 4
5
Rat
ed T
orq
ue
(lb⋅⋅⋅⋅ ⋅ in
) fo
r S
mal
l Pu
lleys
— 1
5 m
m B
elt
Wid
th
(See
Tab
le 4
6 fo
r hp
or
kW r
atin
gs)
2235
.01
1.37
910
9.00
101.
80 9
4.69
90.
51 8
5.23
78.
08 7
3.89
70.
92 6
8.61
66.
73 6
3.74
61.
43 5
9.53
57.
92 5
6.51
55.
27 5
4.16
52.
20 5
0.53
49.
06 4
7.74
46.
53 4
3.88
41.
56 3
7.50
33.
79 3
0.19
26.
56
2641
.38
1.62
913
9.30
130.
9012
2.40
117.
5011
1.20
102.
80 9
7.83
94.
31 9
1.59
89.
36 8
5.83
83.
09 8
0.83
78.
92 7
7.25
75.
77 7
4.44
72.
10 7
0.09
68.
31 6
6.70
65.
21 6
1.91
58.
98 5
3.67
48.
63 4
3.57
38.
34
3250
.93
2.00
518
4.30
173.
9016
3.50
157.
5014
9.80
139.
4013
3.30
129.
0012
5.60
122.
9011
8.50
115.
1011
2.30
109.
9010
7.90
106.
0010
4.30
101.
40 9
8.84
96.
54 9
4.45
92.
50 8
8.07
84.
01 7
6.33
68.
66 6
0.63
—
3657
.30
2.25
621
4.10
202.
4019
0.70
183.
9017
5.20
163.
5015
6.70
151.
8014
8.00
144.
9014
0.00
136.
2013
3.00
130.
3012
8.00
125.
9012
4.00
120.
6011
7.60
115.
0011
2.50
110.
2010
4.90
99.
93 9
0.27
80.
34— —
4063
.66
2.50
624
3.60
230.
6021
7.60
209.
9020
0.40
187.
4017
9.70
174.
3017
0.10
166.
7016
1.20
156.
9015
3.40
150.
4014
7.80
145.
4014
3.20
139.
4013
6.00
132.
9013
0.10
127.
4012
1.10
115.
1010
3.10
— — —
4470
.03
2.75
727
2.90
258.
6024
4.30
235.
9022
5.40
211.
1020
2.70
196.
7019
2.10
188.
3018
2.30
177.
6017
3.70
170.
3016
7.40
164.
7016
2.30
158.
0015
4.20
150.
7014
7.40
144.
3013
6.90
129.
7011
5.00
— — —
4876
.39
3.00
830
2.10
286.
5027
0.90
261.
8025
0.30
234.
7022
5.50
219.
0021
3.90
209.
8020
3.20
198.
0019
3.70
190.
1018
6.80
183.
9018
1.20
176.
4017
2.10
168.
1016
4.30
160.
7015
2.10
143.
5012
5.60
— — —
5689
.13
3.50
935
9.90
341.
7032
3.50
312.
9029
9.50
281.
2027
0.60
263.
0025
7.00
252.
2024
4.40
238.
3023
3.30
228.
9022
5.00
221.
5021
8.20
212.
3020
6.90
201.
8019
7.00
192.
3018
0.60
168.
70— — — —
6410
1.86
4.01
041
7.20
396.
4037
5.60
363.
4034
8.10
327.
3031
5.10
306.
4029
9.60
294.
0028
5.10
278.
0027
2.10
267.
0026
2.40
258.
2025
4.40
247.
2024
0.60
234.
2022
8.10
222.
0020
6.70
190.
60— — — —
7211
4.59
4.51
147
4.10
450.
6042
7.20
413.
5039
6.30
372.
8035
9.10
349.
3034
1.60
335.
3032
5.20
317.
2031
0.40
304.
5029
9.20
294.
3028
9.70
281.
1027
3.10
265.
3025
7.60
249.
8023
0.00
— — — — —
8012
7.32
5.01
353
0.60
504.
6047
8.50
463.
3044
4.10
418.
1040
2.80
391.
8038
3.30
376.
2036
4.90
355.
9034
8.20
341.
4033
5.30
329.
6032
4.20
314.
1030
4.40
294.
9028
5.30
275.
70— — — — — —
Bel
t W
idth
(m
m)
Wid
th M
ult
iplie
r9
0.60
15 1.00
20 1.33
The
fol
low
ing
tabl
e re
pres
ents
the
tor
que
ratin
gs f
or e
ach
belt,
in it
s ba
se w
idth
, at
the
pred
eter
min
ed n
umbe
r of
gro
oves
, pi
tch
diam
eter
s an
d rp
m's
. T
hese
rat
ings
mus
t be
mul
tiplie
d by
the
app
ropr
iate
wid
th f
acto
r an
d ap
plic
able
bel
t le
ngth
fac
tor
to o
btai
n th
e co
rrec
ted
torq
ue r
atin
g (s
ee S
tep
7 o
f SE
CT
ION
24,
on
page
T-1
50).
25 1.67
2844
.56
1.75
415
4.30
145.
2013
6.10
130.
8012
4.10
115.
0010
9.70
105.
9010
3.00
100.
60 9
6.76
93.
80 9
1.37
89.
31 8
7.50
85.
90 8
4.46
81.
92 7
9.73
77.
79 7
6.02
74.
39 7
0.74
67.
46 6
1.43
55.
06 4
9.67
43.
46
2438
.20
1.50
412
4.20
116.
4010
8.60
104.
00 9
8.27
90.
46 8
5.90
82.
65 8
0.14
78.
08 7
4.83
72.
30 7
0.22
68.
46 6
6.93
65.
57 6
4.34
62.
20 6
0.36
58.
73 5
7.27
55.
93 5
2.96
50.
35 4
5.69
41.
35 3
7.07
32.
69
rpm of
Fas
test
Sh
aft
[Tab
ula
ted
valu
es a
rein
lb⋅⋅⋅⋅ ⋅ in
]
5 m
m P
itch
Pow
erG
rip®
GT®
2 B
elts
Con
tinue
d on
the
next
pag
e
Nu
mb
er o
f G
roo
ves
Pit
chD
iam
eter
mm
inch
es
1960
392
2000
400
1.30
To
200
40
210
42
0.65
Len
gth
Co
rrec
tio
n F
acto
r
215
43
255
51
0.70
260
52
310
62
0.75
315
63
370
74
0.80
375
75
445
89
0.85
450
90
535
107
0.90
540
108
645
129
0.95
650
130
775
155
1.00
780
156
930
186
1.05
935
187
1125
225
1.10
1130
226
1350
270
1.15
1355
271
1620
324
1.20
1625
325
1955
391
1.25
Fo
r B
elt
Len
gth
Fro
mLe
ngth
(mm
)#
of te
eth
Leng
th (m
m)
# of
teet
h
Sha
ded
area
indi
cate
s dr
ive
cond
ition
s w
here
red
uced
ser
vice
life
can
be
expe
cted
.
T–157
TEC
HN
ICA
L S
EC
TIO
N
The
fol
low
ing
tabl
e re
pres
ents
the
tor
que
ratin
gs f
or e
ach
belt,
in it
s ba
se w
idth
, at
the
pred
eter
min
ed n
umbe
r of
gro
oves
, pi
tch
diam
eter
s an
d rp
m's
. T
hese
rat
ings
mus
t be
mul
tiplie
d by
the
app
ropr
iate
wid
th f
acto
r an
d ap
plic
able
bel
t le
ngth
fac
tor
to o
btai
n th
e co
rrec
ted
torq
ue r
atin
g (s
ee S
tep
7 o
f SE
CT
ION
24,
on
page
T-1
50).
5 m
m P
itch
Pow
erG
rip®
GT®
2 B
elts
1828
.65
1.12
88.
848.
187.
527.
136.
645.
985.
595.
325.
114.
934.
664.
444.
274.
123.
993.
883.
783.
603.
453.
313.
193.
092.
852.
652.
312.
011.
731.
45
2031
.83
1.25
310
.58
9.8
4 9
.11
8.6
8 8
.14
7.4
0 6
.97
6.6
7 6
.43
6.2
4 5
.93
5.6
9 5
.50
5.3
3 5
.19
5.0
6 4
.95
4.7
5 4
.58
4.4
3 4
.30
4.1
7 3
.91
3.6
8 3
.28
2.9
2 2
.59
2.2
5
10
20
40
60
1
00
200
3
00
400
5
00
600
8
00 1
000
120
0 1
400
160
0 1
800
200
0 2
400
280
0 3
200
360
0 4
000
500
0 6
000
800
010
000
1200
014
000
2235
.01
1.37
912
.32
11.5
110
.70
10.2
3 9
.63
8.8
2 8
.38
8.0
1 7
.75
7.5
4 7
.20
6.9
4 6
.73
6.5
4 6
.39
6.2
4 6
.12
5.9
0 5
.71
5.5
4 5
.39
5.2
6 4
.96
4.7
0 4
.24
3.8
2 3
.41
3.0
0
2641
.38
1.62
915
.74
14.7
813
.83
13.2
712
.57
11.6
111
.05
10.6
610
.35
10.1
0 9
.70
9.3
9 9
.13
8.9
2 8
.73
8.5
6 8
.41
8.1
5 7
.92
7.7
2 7
.54
7.3
7 7
.00
6.6
6 6
.06
5.4
9 4
.92
4.3
3
3250
.93
2.00
520
.83
19.6
518
.48
17.7
916
.92
15.7
515
.06
14.5
714
.19
13.8
813
.39
13.0
112
.69
12.4
212
.19
11.9
811
.79
11.4
611
.17
10.9
110
.67
10.4
5 9
.95
9.4
9 8
.62
7.76
6.85
—
3657
.30
2.25
624
.19
22.8
721
.55
20.7
719
.80
18.4
817
.70
17.1
516
.72
16.3
715
.82
15.3
915
.03
14.7
314
.46
14.2
214
.01
13.6
213
.29
12.9
912
.71
12.4
511
.85
11.2
910
.20
9.0
8— —
4063
.66
2.50
627
.52
26.0
524
.58
23.7
222
.64
21.1
720
.31
19.7
019
.22
18.8
318
.21
17.7
317
.33
16.9
916
.69
16.4
316
.18
15.7
515
.37
15.0
214
.70
14.4
013
.68
13.0
111
.65
— — —
4470
.03
2.75
730
.84
29.2
227
.60
26.6
625
.47
23.8
522
.90
22.2
321
.71
21.2
820
.60
20.0
619
.62
19.2
418
.91
18.6
118
.34
17.8
517
.42
17.0
216
.65
16.3
015
.46
14.6
512
.99
— — —
4876
.39
3.00
834
.14
32.3
730
.61
29.5
828
.28
26.5
125
.48
24.7
424
.17
23.7
022
.96
22.3
721
.89
21.4
721
.11
20.7
820
.47
19.9
319
.44
18.9
918
.57
18.1
617
.18
16.2
114
.20
— — —
5689
.13
3.50
940
.67
38.6
136
.55
35.3
533
.83
31.7
830
.57
29.7
129
.04
28.4
927
.62
26.9
326
.36
25.8
625
.42
25.0
224
.65
23.9
823
.38
22.8
022
.26
21.7
220
.41
19.0
6— — — —
6410
1.86
4.01
047
.14
44.7
942
.44
41.0
639
.33
36.9
835
.60
34.6
133
.85
33.2
232
.21
31.4
130
.75
30.1
729
.65
29.1
828
.74
27.9
327
.18
26.4
725
.77
25.0
823
.35
21.5
4— — — —
7211
4.59
4.51
153
.56
50.9
248
.27
46.7
244
.77
42.1
340
.57
39.4
638
.60
37.8
836
.74
35.8
435
.07
34.4
033
.80
33.2
532
.73
31.7
630
.85
29.9
729
.10
28.2
325
.99
— — — — —
8012
7.32
5.01
359
.95
57.0
154
.07
52.3
550
.18
47.2
445
.51
44.2
743
.31
42.5
141
.23
40.2
139
.34
38.5
837
.89
37.2
436
.63
35.4
934
.39
33.3
232
.24
31.1
5— — — — — —
Bel
t W
idth
(m
m)
Wid
th M
ult
iplie
r9
0.60
15 1.00
20 1.33
25 1.67
2844
.56
1.75
417
.44
16.4
115
.38
14.7
814
.02
12.9
912
.39
11.9
611
.63
11.3
610
.93
10.6
010
.32
10.0
9 9
.89
9.7
1 9
.54
9.2
6 9
.01
8.7
9 8
.59
8.4
1 7
.99
7.6
2 6
.94
6.2
8 5
.61
4.9
1
2438
.20
1.50
414
.03
13.1
512
.27
11.7
511
.10
10.2
2 9
.71
9.3
4 9
.05
8.8
2 8
.45
8.1
7 7
.93
7.7
3 7
.56
7.4
1 7
.27
7.0
3 6
.82
6.6
4 6
.47
6.3
2 5
.98
5.6
9 5
.16
4.6
7 4
.19
3.6
9
rpm of
Fas
test
Sh
aft
[Tab
ula
ted
valu
es a
rein
N⋅⋅⋅⋅ ⋅m
]
Tab
le 4
5 (C
ont.)
R
ated
To
rqu
e (N
⋅⋅⋅⋅ ⋅m)
for
Sm
all P
ulle
ys —
15
mm
Bel
t W
idth
(S
ee T
able
46
for
hp o
r kW
rat
ings
)
Nu
mb
er o
f G
roo
ves
Pit
chD
iam
eter
mm
inch
es
1960
392
2000
400
1.30
To
200
40
210
42
0.65
Len
gth
Co
rrec
tio
n F
acto
r
215
43
255
51
0.70
260
52
310
62
0.75
315
63
370
74
0.80
375
75
445
89
0.85
450
90
535
107
0.90
540
108
645
129
0.95
650
130
775
155
1.00
780
156
930
186
1.05
935
187
1125
225
1.10
1130
226
1350
270
1.15
1355
271
1620
324
1.20
1625
325
1955
391
1.25
Fo
r B
elt
Len
gth
Fro
mLe
ngth
(mm
)#
of te
eth
Leng
th (m
m)
# of
teet
h
Sha
ded
area
indi
cate
s dr
ive
cond
ition
s w
here
red
uced
ser
vice
life
can
be
expe
cted
.
T–158
TEC
HN
ICA
L S
EC
TIO
N
1828
.65
1.12
80.
010.
020.
040.
060.
090.
170.
240.
300.
360.
420.
520.
620.
720.
810.
900.
981.
061.
211.
351.
491.
611.
732.
002.
232.
592.
822.
912.
86
2031
.83
1.25
30.
010.
030.
050.
070.
110.
210.
290.
370.
450.
530.
670.
800.
931.
051.
171.
281.
391.
601.
801.
992.
172.
342.
743.
103.
694.
114.
364.
42
10
20
40
60
1
00
200
3
00
400
5
00
600
8
00 1
000
120
0 1
400
160
0 1
800
200
0 2
400
280
0 3
200
360
0 4
000
500
0 6
000
800
010
000
1200
014
000
Tab
le 4
6
Rat
ed H
ors
epo
wer
fo
r S
mal
l Pu
lleys
— 1
5 m
m B
elt
Wid
th
2235
.01
1.37
90.
020.
030.
060.
090.
140.
250.
350.
450.
540.
640.
810.
971.
131.
291.
431.
581.
721.
992.
242.
492.
732.
953.
483.
964.
765.
365.
755.
90
2641
.38
1.62
90.
020.
040.
080.
110.
180.
330.
470.
600.
730.
851.
091.
321.
541.
751.
962.
162.
362.
753.
113.
473.
814.
144.
915.
626.
817.
728.
308.
52
3250
.93
2.00
5 0
.03
0.0
6 0
.10
0.1
5 0
.24
0.4
4 0
.63
0.8
2 1
.00
1.1
7 1
.50
1.8
3 2
.14
2.4
4 2
.74
3.0
3 3
.31
3.8
6 4
.39
4.9
0 5
.40
5.8
7 6
.99
8.0
0 9
.69
10.8
911
.54
—
3657
.30
2.25
6 0
.03
0.0
6 0
.12
0.1
8 0
.28
0.5
2 0
.75
0.9
6 1
.17
1.3
8 1
.78
2.1
6 2
.53
2.9
0 3
.25
3.5
9 3
.93
4.5
9 5
.23
5.8
4 6
.43
6.9
9 8
.32
9.5
111
.46
12.7
5— —
4063
.66
2.50
6 0
.04
0.0
7 0
.14
0.2
0 0
.32
0.5
9 0
.86
1.1
1 1
.35
1.5
9 2
.05
2.4
9 2
.92
3.3
4 3
.75
4.1
5 4
.55
5.3
1 6
.04
6.7
5 7
.43
8.0
9 9
.61
10.9
613
.09
— — —
4470
.03
2.75
7 0
.04
0.0
8 0
.16
0.2
2 0
.36
0.6
7 0
.96
1.2
5 1
.52
1.7
9 2
.31
2.8
2 3
.31
3.7
8 4
.25
4.7
1 5
.15
6.0
2 6
.85
7.6
5 8
.42
9.1
610
.86
12.3
414
.59
— — —
4876
.39
3.00
8 0
.05
0.0
9 0
.17
0.2
5 0
.40
0.7
4 1
.07
1.3
9 1
.70
2.0
0 2
.58
3.1
4 3
.69
4.2
2 4
.74
5.2
5 5
.75
6.7
2 7
.64
8.5
3 9
.39
10.2
012
.06
13.6
615
.95
— — —
5689
.13
3.50
9 0
.06
0.1
1 0
.21
0.3
0 0
.48
0.8
9 1
.29
1.6
7 2
.04
2.4
0 3
.10
3.7
8 4
.44
5.0
8 5
.71
6.3
2 6
.92
8.0
8 9
.19
10.2
511
.25
12.2
014
.33
16.0
6— — — —
6410
1.86
4.01
0 0
.07
0.1
3 0
.24
0.3
5 0
.55
1.0
4 1
.50
1.9
4 2
.38
2.8
0 3
.62
4.4
1 5
.18
5.9
3 6
.66
7.3
8 8
.07
9.4
110
.69
11.8
913
.03
14.0
916
.40
18.1
5— — — —
7211
4.59
4.51
1 0
.08
0.1
4 0
.27
0.3
9 0
.63
1.1
8 1
.71
2.2
2 2
.71
3.1
9 4
.13
5.0
3 5
.91
6.7
6 7
.60
8.4
0 9
.19
10.7
012
.13
13.4
714
.71
15.8
618
.25
— — — — —
8012
7.32
5.01
3 0
.08
0.1
6 0
.30
0.4
4 0
.70
1.3
3 1
.92
2.4
9 3
.04
3.5
8 4
.63
5.6
5 6
.63
7.5
8 8
.51
9.4
110
.29
11.9
613
.52
14.9
716
.30
17.5
0— — — — — —
Bel
t W
idth
(m
m)
Wid
th M
ult
iplie
r9
0.60
15 1.00
20 1.33
The
fol
low
ing
tabl
e re
pres
ents
the
hor
sepo
wer
rat
ings
for
eac
h be
lt, i
n its
bas
ew
idth
, at
the
pre
dete
rmin
ed n
umbe
r of
gro
oves
, pi
tch
diam
eter
s an
d rp
m's
. T
hese
ratin
gs m
ust
be m
ultip
lied
by t
he a
ppro
pria
te w
idth
fac
tor
and
appl
icab
le b
elt
leng
thfa
ctor
to
obta
in t
he c
orre
cted
hor
sepo
wer
rat
ing
(see
Ste
p 7
of
SE
CT
ION
24,
on
page
T-1
50).
See
Tab
le 4
5 fo
r to
rque
rat
ings
.
25 1.67
2438
.20
1.50
40.
020.
040.
070.
100.
160.
290.
410.
520.
640.
740.
951.
151.
341.
521.
701.
872.
042.
372.
682.
983.
273.
554.
204.
795.
806.
567.
067.
26
rpm of
Fas
test
Sh
aft
[Tab
ula
ted
valu
es a
rein
hp
]
5 m
m P
itch
Pow
erG
rip®
GT®
2 B
elts
2844
.56
1.75
40.
020.
050.
090.
120.
200.
360.
520.
670.
820.
961.
231.
491.
741.
982.
222.
452.
683.
123.
543.
954.
344.
725.
616.
427.
808.
829.
469.
65
Nu
mb
er o
f G
roo
ves
Pit
chD
iam
eter
mm
inch
es
1960
392
2000
400
1.30
To
200
40
210
42
0.65
Len
gth
Co
rrec
tio
n F
acto
r
215
43
255
51
0.70
260
52
310
62
0.75
315
63
370
74
0.80
375
75
445
89
0.85
450
90
535
107
0.90
540
108
645
129
0.95
650
130
775
155
1.00
780
156
930
186
1.05
935
187
1125
225
1.10
1130
226
1350
270
1.15
1355
271
1620
324
1.20
1625
325
1955
391
1.25
Fo
r B
elt
Len
gth
Fro
mLe
ngth
(mm
)#
of te
eth
Leng
th (m
m)
# of
teet
h
Sha
ded
area
indi
cate
s dr
ive
cond
ition
s w
here
red
uced
ser
vice
life
can
be
expe
cted
.
Con
tinue
d on
the
next
pag
e
T–159
TEC
HN
ICA
L S
EC
TIO
N
1828
.65
1.12
80.
010.
020.
030.
040.
070.
130.
180.
220.
270.
310.
390.
470.
540.
600.
670.
730.
790.
901.
011.
111.
201.
291.
491.
671.
932.
102.
172.
13
2031
.83
1.25
30.
010.
020.
040.
050.
090.
160.
220.
280.
340.
390.
500.
600.
690.
780.
870.
951.
041.
191.
341.
481.
621.
752.
052.
312.
753.
063.
253.
30
10
20
40
60
1
00
200
3
00
400
5
00
600
8
00 1
000
120
0 1
400
160
0 1
800
200
0 2
400
280
0 3
200
360
0 4
000
500
0 6
000
800
010
000
1200
014
000
Tab
le 4
6 (C
ont.)
R
ated
Kilo
wat
ts f
or
Sm
all P
ulle
ys —
15
mm
Bel
t W
idth
2235
.01
1.37
90.
010.
020.
040.
060.
100.
180.
260.
340.
410.
470.
600.
730.
850.
961.
071.
181.
281.
481.
671.
862.
032.
202.
602.
953.
554.
004.
294.
40
2641
.38
1.62
90.
020.
030.
060.
080.
130.
240.
350.
450.
540.
630.
810.
981.
151.
311.
461.
611.
762.
052.
322.
592.
843.
093.
664.
195.
085.
756.
196.
35
3250
.93
2.00
50.
020.
040.
080.
110.
180.
330.
470.
610.
740.
871.
121.
361.
591.
822.
042.
262.
472.
883.
273.
664.
024.
385.
215.
967.
238.
128.
61 —
3657
.30
2.25
60.
030.
050.
090.
130.
210.
390.
560.
720.
881.
031.
331.
611.
892.
162.
422.
682.
933.
423.
904.
354.
795.
226.
217.
098.
549.
51 — —
4063
.66
2.50
60.
030.
050.
100.
150.
240.
440.
640.
831.
011.
181.
531.
862.
182.
492.
803.
103.
393.
964.
515.
035.
546.
037.
168.
179.
76 — — —
4470
.03
2.75
7 0
.03
0.0
6 0
.12
0.1
7 0
.27
0.5
0 0
.72
0.9
3 1
.14
1.3
4 1
.73
2.1
0 2
.47
2.8
2 3
.17
3.5
1 3
.84
4.4
9 5
.11
5.7
1 6
.28
6.8
3 8
.10
9.2
010
.88
— — —
4876
.39
3.00
8 0
.04
0.0
7 0
.13
0.1
9 0
.30
0.5
6 0
.80
1.0
4 1
.27
1.4
9 1
.92
2.3
4 2
.75
3.1
5 3
.54
3.9
2 4
.29
5.0
1 5
.70
6.3
6 7
.00
7.6
1 9
.00
10.1
911
.89
— — —
5689
.13
3.50
9 0
.04
0.0
8 0
.15
0.2
2 0
.35
0.6
7 0
.96
1.2
4 1
.52
1.7
9 2
.31
2.8
2 3
.31
3.7
9 4
.26
4.7
2 5
.16
6.0
3 6
.85
7.6
4 8
.39
9.1
010
.68
11.9
8— — — —
6410
1.86
4.01
0 0
.05
0.0
9 0
.18
0.2
6 0
.41
0.7
7 1
.12
1.4
5 1
.77
2.0
9 2
.70
3.2
9 3
.86
4.4
2 4
.97
5.5
0 6
.02
7.0
2 7
.97
8.8
7 9
.72
10.5
112
.23
13.5
3— — — —
7211
4.59
4.51
1 0
.06
0.1
1 0
.20
0.2
9 0
.47
0.8
8 1
.27
1.6
5 2
.02
2.3
8 3
.08
3.7
5 4
.41
5.0
4 5
.66
6.2
7 6
.85
7.9
8 9
.05
10.0
410
.97
11.8
213
.61
— — — — —
8012
7.32
5.01
3 0
.06
0.1
2 0
.23
0.3
3 0
.53
0.9
9 1
.43
1.8
5 2
.27
2.6
7 3
.45
4.2
1 4
.94
5.6
6 6
.35
7.0
2 7
.67
8.9
210
.08
11.1
612
.15
13.0
5— — — — — —
Bel
t W
idth
(m
m)
Wid
th M
ult
iplie
r9
0.60
15 1.00
20 1.33
25 1.67
2438
.20
1.50
40.
010.
030.
050.
070.
120.
210.
300.
390.
470.
550.
710.
861.
001.
131.
271.
401.
521.
772.
002.
222.
442.
653.
133.
574.
324.
895.
265.
42
rpm of
Fas
test
Sh
aft
[Tab
ula
ted
valu
es a
rein
kW
]
5 m
m P
itch
Pow
erG
rip®
GT®
2 B
elts
2844
.56
1.75
40.
020.
030.
060.
090.
150.
270.
390.
500.
610.
710.
921.
111.
301.
481.
661.
832.
002.
332.
642.
953.
243.
524.
184.
795.
816.
587.
057.
20
The
fol
low
ing
tabl
e re
pres
ents
the
hor
sepo
wer
rat
ings
for
eac
h be
lt, i
n its
bas
ew
idth
, at
the
pre
dete
rmin
ed n
umbe
r of
gro
oves
, pi
tch
diam
eter
s an
d rp
m's
. T
hese
ratin
gs m
ust
be m
ultip
lied
by t
he a
ppro
pria
te w
idth
fac
tor
and
appl
icab
le b
elt
leng
thfa
ctor
to
obta
in t
he c
orre
cted
hor
sepo
wer
rat
ing
(see
Ste
p 7
of
SE
CT
ION
24,
on
page
T-1
50).
See
Tab
le 4
5 fo
r to
rque
rat
ings
.N
um
ber
of
Gro
ove
sP
itch
Dia
met
erm
min
ches
1960
392
2000
400
1.30
To
200
40
210
42
0.65
Len
gth
Co
rrec
tio
n F
acto
r
215
43
255
51
0.70
260
52
310
62
0.75
315
63
370
74
0.80
375
75
445
89
0.85
450
90
535
107
0.90
540
108
645
129
0.95
650
130
775
155
1.00
780
156
930
186
1.05
935
187
1125
225
1.10
1130
226
1350
270
1.15
1355
271
1620
324
1.20
1625
325
1955
391
1.25
Fo
r B
elt
Len
gth
Fro
mLe
ngth
(mm
)#
of te
eth
Leng
th (m
m)
# of
teet
h
Sha
ded
area
indi
cate
s dr
ive
cond
ition
s w
here
red
uced
ser
vice
life
can
be
expe
cted
.
T–160
TEC
HN
ICA
L S
EC
TIO
N
To
10 9.55
.376 3.3
3.3
3.3
3.3
3.3
3.3
3.0
2.8
2.7
2.6
2.5
2.4
2.4
2.3
2.2
2.1
2.0
2.0
1.9
1.9
1.8
1.7
1.6
1.4
1.3
1211
.46
.451 4.0
4.0
4.0
4.0
4.0
4.0
3.7
3.4
3.3
3.1
3.0
2.9
2.9
2.8
2.7
2.6
2.5
2.5
2.4
2.3
2.2
2.1
1.9
1.7
1.6
10
20
40
60
1
00
200
3
00
400
5
00
600
7
00
800
8
70 1
000
116
0 1
450
160
0 1
750
200
0 2
500
300
0 3
500
500
0 8
000
1000
0
Tab
le 4
7
Rat
ed T
orq
ue
(lb⋅⋅⋅⋅ ⋅in
) fo
r S
mal
l Pu
lleys
— 6
mm
Bel
t W
idth
1413
.37
.526 4.8
4.8
4.8
4.8
4.8
4.8
4.4
4.1
3.9
3.7
3.6
3.5
3.4
3.3
3.2
3.0
3.0
2.9
2.8
2.7
2.6
2.5
2.3
2.0
1.9
1817
.19
.677 6.5
6.5
6.5
6.5
6.5
6.5
5.9
5.5
5.2
5.0
4.8
4.7
4.6
4.4
4.3
4.0
3.9
3.9
3.7
3.5
3.4
3.3
3.0
2.6
2.5
2624
.83
.977
10.2
10.2
10.2
10.2
10.2
10.2
9.2
8.6
8.1
7.7
7.4
7.2
7.0
6.8
6.5
6.2
6.0
5.9
5.7
5.4
5.1
4.9
4.5
3.9
3.6
3028
.65
1.12
812
.312
.312
.312
.312
.312
.311
.110
.3 9
.7 9
.2 8
.9 8
.6 8
.4 8
.1 7
.8 7
.3 7
.2 7
.0 6
.7 6
.4 6
.1 5
.8 5
.2 4
.5 4
.1
3432
.47
1.27
814
.514
.514
.514
.514
.514
.513
.012
.011
.310
.810
.410
.0 9
.8 9
.4 9
.1 8
.5 8
.3 8
.1 7
.8 7
.4 7
.0 6
.7 6
.0 5
.1 4
.6
3836
.29
1.42
916
.816
.816
.816
.816
.816
.815
.013
.913
.112
.411
.911
.511
.210
.810
.4 9
.8 9
.5 9
.3 8
.9 8
.4 8
.0 7
.6 6
.8 5
.7 5
.1
4442
.02
1.65
420
.520
.520
.520
.520
.520
.518
.316
.915
.815
.014
.413
.913
.513
.012
.511
.711
.411
.110
.710
.0 9
.4 9
.0 8
.0 6
.6 5
.7
5047
.75
1.88
024
.624
.624
.624
.624
.624
.621
.820
.018
.817
.817
.016
.315
.915
.314
.613
.713
.312
.912
.411
.611
.010
.4 9
.2 7
.3 6
.3
5653
.48
2.10
527
.727
.727
.727
.727
.727
.724
.622
.621
.220
.119
.218
.418
.017
.216
.515
.415
.014
.614
.013
.012
.311
.710
.2 8
.0 6
.6
6259
.21
2.33
130
.730
.730
.730
.730
.730
.727
.325
.023
.422
.221
.220
.419
.919
.118
.217
.116
.516
.115
.414
.413
.512
.811
.1 8
.5 6
.8
7268
.75
2.70
735
.735
.735
.735
.735
.735
.731
.629
.127
.225
.824
.623
.723
.122
.121
.219
.819
.218
.717
.916
.615
.614
.812
.7 9
.1—
Bel
t W
idth
(m
m)
Wid
th M
ult
iplie
r6
1.00
91.
6615 2.97
144
48
195
65
0.80
Len
gth
Co
rrec
tio
n F
acto
r
198
66
261
87
0.90
264
88
405
135
1.00
408
136
597
199
1.10
600
200
603
& u
p20
1 &
up
1.20
Fo
r B
elt
Len
gth
Fro
mLe
ngth
(mm
)#
of te
eth
Leng
th (m
m)
# of
teet
h
The
fol
low
ing
tabl
e re
pres
ents
the
tor
que
ratin
gs f
or e
ach
belt,
in it
s ba
se w
idth
, at
the
pred
eter
min
ed n
umbe
r of
gro
oves
, pi
tch
diam
eter
s an
d rp
m's
. T
hese
rat
ings
mus
t be
mul
tiplie
d by
the
app
ropr
iate
wid
th f
acto
r an
d ap
plic
able
bel
t le
ngth
fac
tor
to o
btai
n th
e co
rrec
ted
torq
ue r
atin
g (s
ee S
tep
7 o
f SE
CT
ION
24,
on
page
T-1
50).
1615
.28
.602 5.6
5.6
5.6
5.6
5.6
5.6
5.1
4.8
4.5
4.3
4.2
4.1
4.0
3.9
3.7
3.5
3.4
3.4
3.3
3.1
3.0
2.9
2.6
2.3
2.2
rpm of
Fas
test
Sh
aft
[Tab
ula
ted
valu
es a
rein
lb⋅⋅⋅⋅ ⋅ in
]
3 m
m P
itch
Pow
erG
rip®
HTD
® B
elts
Con
tinue
d on
the
next
pag
e
2221
.01
.827 8.3
8.3
8.3
8.3
8.3
8.3
7.5
7.0
6.6
6.3
6.1
5.9
5.8
5.6
5.4
5.1
5.0
4.9
4.7
4.4
4.2
4.1
3.7
3.3
3.0
8076
.39
3.00
839
.639
.639
.639
.639
.639
.635
.232
.330
.228
.627
.426
.325
.624
.623
.522
.021
.320
.719
.818
.417
.316
.313
.8 9
.3—
Sha
ded
area
indi
cate
s dr
ive
cond
ition
s w
here
red
uced
ser
vice
life
can
be
expe
cted
.
Nu
mb
er o
f G
roo
ves
Pit
chD
iam
eter
mm
inch
es
T–161
TEC
HN
ICA
L S
EC
TIO
N
3028
.65
1.12
81.
41.
41.
41.
41.
41.
41.
21.
21.
11.
01.
01.
00.
90.
90.
90.
80.
80.
80.
80.
70.
70.
70.
60.
50.
5
2624
.83
.977 1.2
1.2
1.2
1.2
1.2
1.2
1.0
1.0
0.9
0.9
0.8
0.8
0.8
0.8
0.7
0.7
0.7
0.7
0.6
0.6
0.6
0.6
0.5
0.4
0.4
2221
.01
.827 0.9
0.9
0.9
0.9
0.9
0.9
0.8
0.8
0.7
0.7
0.7
0.7
0.7
0.6
0.6
0.6
0.6
0.5
0.5
0.5
0.5
0.5
0.4
0.4
0.3
1817
.19
.677 0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.6
0.6
0.6
0.5
0.5
0.5
0.5
0.5
0.5
0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.3
0.3
1615
.28
.602 0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.5
0.5
0.5
0.5
0.5
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.2
1413
.37
.526 0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.2
0.2
1211
.46
.451 0.5
0.5
0.5
0.5
0.5
0.5
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.2
0.2
0.2
0.2
0.2
10 9.55
.376 0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2 To
10
20
40
60
1
00
200
3
00
400
5
00
600
7
00
800
8
70 1
000
116
0 1
450
160
0 1
750
200
0 2
500
300
0 3
500
500
0 8
000
1000
0
Tab
le 4
7 (C
ont.)
R
ated
To
rqu
e (N
⋅⋅⋅⋅ ⋅m)
for
Sm
all P
ulle
ys —
6 m
m B
elt
Wid
th
3432
.47
1.27
81.
61.
61.
61.
61.
61.
61.
51.
41.
31.
21.
21.
11.
11.
11.
01.
00.
90.
90.
90.
80.
80.
80.
70.
60.
5
3836
.29
1.42
91.
91.
91.
91.
91.
91.
91.
71.
61.
51.
41.
31.
31.
31.
21.
21.
11.
11.
01.
00.
90.
90.
90.
80.
60.
6
4442
.02
1.65
42.
32.
32.
32.
32.
32.
32.
11.
91.
81.
71.
61.
61.
51.
51.
41.
31.
31.
31.
21.
11.
11.
00.
90.
70.
6
5047
.75
1.88
02.
82.
82.
82.
82.
82.
82.
52.
32.
12.
01.
91.
81.
81.
71.
71.
51.
51.
51.
41.
31.
21.
21.
00.
80.
7
5653
.48
2.10
53.
13.
13.
13.
13.
13.
12.
82.
62.
42.
32.
22.
12.
01.
91.
91.
71.
71.
61.
61.
51.
41.
31.
20.
90.
7
6259
.21
2.33
13.
53.
53.
53.
53.
53.
53.
12.
82.
62.
52.
42.
32.
22.
22.
11.
91.
91.
81.
71.
61.
51.
51.
31.
00.
8
7268
.75
2.70
74.
04.
04.
04.
04.
04.
03.
63.
33.
12.
92.
82.
72.
62.
52.
42.
22.
22.
12.
01.
91.
81.
71.
41.
0—
Bel
t W
idth
(m
m)
Wid
th M
ult
iplie
r6
1.00
91.
6615 2.97
144
48
195
65
0.80
Len
gth
Co
rrec
tio
n F
acto
r
198
66
261
87
0.90
264
88
405
135
1.00
408
136
597
199
1.10
600
200
603
& u
p20
1 &
up
1.20
Fo
r B
elt
Len
gth
Fro
mLe
ngth
(mm
)#
of te
eth
Leng
th (m
m)
# of
teet
h
The
fol
low
ing
tabl
e re
pres
ents
the
tor
que
ratin
gs f
or e
ach
belt,
in it
s ba
se w
idth
, at
the
pred
eter
min
ed n
umbe
r of
gro
oves
, pi
tch
diam
eter
s an
d rp
m's
. T
hese
rat
ings
mus
t be
mul
tiplie
d by
the
app
ropr
iate
wid
th f
acto
r an
d ap
plic
able
bel
t le
ngth
fac
tor
to o
btai
n th
e co
rrec
ted
torq
ue r
atin
g (s
ee S
tep
7 o
f SE
CT
ION
24,
on
page
T-1
50).
rpm of
Fas
test
Sh
aft
[Tab
ula
ted
valu
es a
rein
N⋅⋅⋅⋅ ⋅m
]
3 m
m P
itch
Pow
erG
rip®
HTD
® B
elts 80
76.3
93.
008
4.5
4.5
4.5
4.5
4.5
4.5
4.0
3.6
3.4
3.2
3.1
3.0
2.9
2.8
2.7
2.5
2.4
2.3
2.2
2.1
1.9
1.8
1.6
1.1
—
Sha
ded
area
indi
cate
s dr
ive
cond
ition
s w
here
red
uced
ser
vice
life
can
be
expe
cted
.
Nu
mb
er o
f G
roo
ves
Pit
chD
iam
eter
mm
inch
es
T–162
TEC
HN
ICA
L S
EC
TIO
N
1422
.28
.877
19.0
19.0
19.0
19.0
19.0
19.0
17.3
16.2
15.3
14.7
14.2
13.7
13.5
13.0
12.6
12.0
11.9
11.7
11.4
11.3
11.1
10.5
10.0
9.6
8.8
7.8
7.2 To
Tab
le 4
8
Rat
ed T
orq
ue
(lb⋅⋅⋅⋅ ⋅in
) fo
r S
mal
l Pu
lleys
— 9
mm
Bel
t W
idth
Bel
t W
idth
(m
m)
Wid
th M
ult
iplie
r9
1.00
15 1.89
25 3.38
350
70
435
87
0.80
Len
gth
Co
rrec
tio
n F
acto
r
440
88
550
110
0.90
555
111
840
168
1.00
845
169
1090
218
1.10
1095
219
1100
& u
p22
0 &
up
1.20
Fo
r B
elt
Len
gth
Fro
mLe
ngth
(mm
)#
of te
eth
Leng
th (m
m)
# of
teet
h
The
fol
low
ing
tabl
e re
pres
ents
the
tor
que
ratin
gs f
or e
ach
belt,
in it
s ba
se w
idth
, at
the
pred
eter
min
ed n
umbe
r of
gro
oves
, pi
tch
diam
eter
s an
d rp
m's
. T
hese
rat
ings
mus
t be
mul
tiplie
d by
the
app
ropr
iate
wid
th f
acto
r an
d ap
plic
able
bel
t le
ngth
fac
tor
to o
btai
n th
e co
rrec
ted
torq
ue r
atin
g (s
ee S
tep
7 o
f SE
CT
ION
24,
on
page
T-1
50).
5 m
m P
itch
Pow
erG
rip®
HTD
® B
elts
Con
tinue
d on
the
next
pag
e
1625
.46
1.00
322
.322
.322
.322
.322
.322
.320
.218
.917
.917
.216
.516
.015
.715
.214
.714
.013
.913
.613
.313
.212
.912
.211
.711
.110
.2 8
.9 8
.2
10
20
40
60
1
00
200
3
00
400
5
00
600
7
00
800
8
70 1
000
116
0 1
400
145
0 1
600
175
0 1
800
200
0 2
500
300
0 3
600
500
0 8
000
1000
0
1828
.65
1.12
825
.725
.725
.725
.725
.725
.723
.321
.820
.619
.719
.018
.418
.017
.416
.816
.115
.915
.615
.215
.114
.713
.913
.312
.711
.610
.1 9
.2
2235
.01
1.37
933
.033
.033
.033
.033
.033
.029
.927
.826
.325
.124
.223
.422
.922
.121
.320
.420
.219
.719
.219
.118
.617
.616
.715
.914
.512
.311
.0
2641
.38
1.62
940
.940
.940
.940
.940
.940
.936
.934
.332
.430
.929
.728
.728
.127
.126
.124
.924
.624
.023
.523
.322
.721
.320
.319
.317
.414
.412
.7
2844
.56
1.75
445
.145
.145
.145
.145
.145
.140
.637
.735
.633
.932
.631
.530
.829
.728
.627
.227
.026
.325
.625
.524
.723
.322
.121
.018
.915
.413
.4
3250
.93
2.00
553
.853
.853
.853
.853
.853
.848
.344
.842
.240
.238
.637
.236
.435
.133
.732
.031
.730
.930
.129
.929
.027
.325
.824
.421
.817
.314
.5
3657
.30
2.25
663
.163
.163
.163
.163
.163
.156
.552
.349
.246
.844
.943
.342
.340
.739
.137
.136
.735
.734
.834
.533
.531
.429
.727
.924
.719
.015
.3
4063
.66
2.50
673
.073
.073
.073
.073
.073
.065
.260
.256
.553
.751
.549
.648
.446
.544
.642
.341
.940
.739
.639
.338
.135
.633
.531
.527
.620
.4—
4470
.03
2.75
783
.583
.583
.583
.583
.583
.574
.468
.564
.361
.058
.356
.154
.852
.650
.447
.747
.245
.844
.644
.242
.839
.937
.535
.130
.421
.5—
4876
.39
3.00
894
.594
.594
.594
.594
.594
.584
.077
.272
.368
.565
.563
.061
.458
.956
.453
.252
.751
.149
.749
.247
.644
.241
.538
.633
.122
.3—
5689
.13
3.50
911
3.3
113.
311
3.3
113.
311
3.3
113.
310
0.4
92.
2 8
6.2
81.
7 7
8.0
74.
9 7
3.0
70.
0 6
6.9
63.
1 6
2.4
60.
4 5
8.7
58.
2 5
6.2
51.
9 4
8.5
44.
8 3
7.4
— —
6410
1.86
4.01
012
9.5
129.
512
9.5
129.
512
9.5
129.
511
4.8
105.
3 9
8.5
93.
3 8
9.1
85.
5 8
3.4
79.
9 7
6.3
71.
9 7
1.1
68.
9 6
6.8
66.
2 6
3.9
58.
8 5
4.6
50.
1 4
0.6
— —
2031
.83
1.25
329
.329
.329
.329
.329
.329
.326
.524
.723
.422
.421
.620
.920
.419
.819
.118
.218
.017
.617
.217
.116
.615
.715
.014
.313
.111
.210
.1
rpm of
Fas
test
Sh
aft
[Tab
ula
ted
valu
es a
rein
lb⋅⋅⋅⋅ ⋅ in
]
2438
.20
1.50
436
.936
.936
.936
.936
.936
.933
.331
.029
.328
.026
.926
.025
.524
.623
.722
.622
.421
.821
.321
.220
.619
.418
.517
.615
.913
.411
.9
7211
4.59
4.51
114
5.7
145.
714
5.7
145.
714
5.7
145.
712
9.1
118.
511
0.8
104.
910
0.1
96.
2 9
3.7
89.
8 8
5.7
80.
7 7
9.8
77.
2 7
4.9
74.
1 7
1.4
65.
5 6
0.5
55.
0 4
3.0
— —
Sha
ded
area
indi
cate
s dr
ive
cond
ition
s w
here
red
uced
ser
vice
life
can
be
expe
cted
.
Nu
mb
er o
f G
roo
ves
Pit
chD
iam
eter
mm
inch
es
T–163
TEC
HN
ICA
L S
EC
TIO
N
1422
.28
.877 2.1
2.1
2.1
2.1
2.1
2.1
2.0
1.8
1.7
1.7
1.6
1.6
1.5
1.5
1.4
1.4
1.3
1.3
1.3
1.3
1.3
1.2
1.1
1.1
1.0
0.9
0.8 To
Tab
le 4
8
Rat
ed T
orq
ue
(N⋅⋅⋅⋅ ⋅m
) fo
r S
mal
l Pu
lleys
— 9
mm
Bel
t W
idth
Bel
t W
idth
(m
m)
Wid
th M
ult
iplie
r9
1.00
15 1.89
25 3.38
350
70
435
87
0.80
Len
gth
Co
rrec
tio
n F
acto
r
440
88
550
110
0.90
555
111
840
168
1.00
845
169
1090
218
1.10
1095
219
1100
& u
p22
0 &
up
1.20
Fo
r B
elt
Len
gth
Fro
mLe
ngth
(mm
)#
of te
eth
Leng
th (m
m)
# of
teet
h
The
fol
low
ing
tabl
e re
pres
ents
the
tor
que
ratin
gs f
or e
ach
belt,
in it
s ba
se w
idth
, at
the
pred
eter
min
ed n
umbe
r of
gro
oves
, pi
tch
diam
eter
s an
d rp
m's
. T
hese
rat
ings
mus
t be
mul
tiplie
d by
the
app
ropr
iate
wid
th f
acto
r an
d ap
plic
able
bel
t le
ngth
fac
tor
to o
btai
n th
e co
rrec
ted
torq
ue r
atin
g (s
ee S
tep
7 o
f SE
CT
ION
24,
on
page
T-1
50).
5 m
m P
itch
Pow
erG
rip®
HTD
® B
elts
1625
.46
1.00
32.
52.
52.
52.
52.
52.
52.
32.
12.
01.
91.
91.
81.
81.
71.
71.
61.
61.
51.
51.
51.
51.
41.
31.
31.
21.
00.
9
10
20
40
60
1
00
200
3
00
400
5
00
600
7
00
800
8
70 1
000
116
0 1
400
145
0 1
600
175
0 1
800
200
0 2
500
300
0 3
600
500
0 8
000
1000
0
1828
.65
1.12
82.
92.
92.
92.
92.
92.
92.
62.
52.
32.
22.
12.
12.
02.
01.
91.
81.
81.
81.
71.
71.
71.
61.
51.
41.
31.
11.
0
2235
.01
1.37
93.
73.
73.
73.
73.
73.
73.
43.
13.
02.
82.
72.
62.
62.
52.
42.
32.
32.
22.
22.
22.
12.
01.
91.
81.
61.
41.
2
2641
.38
1.62
94.
64.
64.
64.
64.
64.
64.
23.
93.
73.
53.
43.
23.
23.
13.
02.
82.
82.
72.
72.
62.
62.
42.
32.
22.
01.
61.
4
2844
.56
1.75
45.
15.
15.
15.
15.
15.
14.
64.
34.
03.
83.
73.
63.
53.
43.
23.
13.
03.
02.
92.
92.
82.
62.
52.
42.
11.
71.
5
3250
.93
2.00
56.
16.
16.
16.
16.
16.
15.
55.
14.
84.
54.
44.
24.
14.
03.
83.
63.
63.
53.
43.
43.
33.
12.
92.
82.
52.
01.
6
3657
.30
2.25
67.
17.
17.
17.
17.
17.
16.
45.
95.
65.
35.
14.
94.
84.
64.
44.
24.
14.
03.
93.
93.
83.
53.
43.
22.
82.
11.
7
4063
.66
2.50
68.
38.
38.
38.
38.
38.
37.
46.
86.
46.
15.
85.
65.
55.
35.
04.
84.
74.
64.
54.
44.
34.
03.
83.
63.
12.
3—
4470
.03
2.75
79.
49.
49.
49.
49.
49.
48.
47.
77.
36.
96.
66.
36.
25.
95.
75.
45.
35.
25.
05.
04.
84.
54.
24.
03.
42.
4—
4876
.39
3.00
810
.710
.710
.710
.710
.710
.7 9
.5 8
.7 8
.2 7
.7 7
.4 7
.1 6
.9 6
.7 6
.4 6
.0 6
.0 5
.8 5
.6 5
.6 5
.4 5
.0 4
.7 4
.4 3
.7 2
.5—
5689
.13
3.50
912
.812
.812
.812
.812
.812
.811
.310
.4 9
.7 9
.2 8
.8 8
.5 8
.2 7
.9 7
.6 7
.1 7
.0 6
.8 6
.6 6
.6 6
.3 5
.9 5
.5 5
.1 4
.2— —
6410
1.86
4.01
014
.614
.614
.614
.614
.614
.613
.011
.911
.110
.510
.1 9
.7 9
.4 9
.0 8
.6 8
.1 8
.0 7
.8 7
.6 7
.5 7
.2 6
.6 6
.2 5
.7 4
.6— —
2031
.83
1.25
33.
33.
33.
33.
33.
33.
33.
02.
82.
62.
52.
42.
42.
32.
22.
22.
12.
02.
01.
91.
91.
91.
81.
71.
61.
51.
31.
1
rpm of
Fas
test
Sh
aft
[Tab
ula
ted
valu
es a
rein
N⋅⋅⋅⋅ ⋅m
]
2438
.20
1.50
44.
24.
24.
24.
24.
24.
23.
83.
53.
33.
23.
02.
92.
92.
82.
72.
62.
52.
52.
42.
42.
32.
22.
12.
01.
81.
51.
3
7211
4.59
4.51
116
.516
.516
.516
.516
.516
.514
.613
.412
.511
.911
.310
.910
.610
.1 9
.7 9
.1 9
.0 8
.7 8
.5 8
.4 8
.1 7
.4 6
.8 6
.2 4
.9— —
Sha
ded
area
indi
cate
s dr
ive
cond
ition
s w
here
red
uced
ser
vice
life
can
be
expe
cted
.
Nu
mb
er o
f G
roo
ves
Pit
chD
iam
eter
mm
inch
es
T–164
TEC
HN
ICA
L S
EC
TIO
N
10 6.48
.255
4.61
4.61
4.61
4.61
4.61
4.61
4.61
4.61
4.60
4.59
4.59
Tab
le 4
9
Rat
ed T
orq
ue
(oz ⋅⋅⋅⋅ ⋅i
n)
for
Sm
all P
ulle
ys —
1/8
" T
op
Wid
th
Bel
t W
idth
(in
)W
idth
Mu
ltip
lier
3/8
3.50
7/16
4.18
1/2
4.86
The
fol
low
ing
tabl
e re
pres
ents
the
tor
que
ratin
gs f
or e
ach
belt,
in it
s ba
se w
idth
, at
the
pred
eter
min
ed n
umbe
r of
gro
oves
, pi
tch
diam
eter
s an
d rp
m's
. T
hese
rat
ings
mus
t be
mul
tiplie
d by
the
app
ropr
iate
wid
th f
acto
r to
obt
ain
the
corr
ecte
d to
rque
ratin
g (s
ee S
tep
7 o
f SE
CT
ION
24,
on
page
T-1
50).
MX
L (
.080
in)
Bel
ts
No
. of
Gro
ove
sP
itch
Dia
met
erm
m in
10
1
00 1
000
200
0 2
500
300
0 3
500
500
0 8
000
1000
012
000
rpm of
Fas
test
Sh
aft
11 7.11
.280
5.06
5.06
5.06
5.06
5.06
5.06
5.06
5.06
5.05
5.04
5.03
12 7.77
.306
5.53
5.53
5.53
5.53
5.53
5.53
5.53
5.53
5.52
5.51
5.49
14 9.07
.357
6.45
6.45
6.45
6.45
6.45
6.45
6.45
6.44
6.43
6.41
6.39
15 9.70
.382
6.91
6.91
6.91
6.90
6.90
6.90
6.90
6.89
6.87
6.85
6.83
1610
.34
.407
7.36
7.36
7.36
7.36
7.35
7.35
7.35
7.34
7.32
7.30
7.27
1811
.63
.458
8.28
8.28
8.28
8.28
8.28
8.27
8.27
8.26
8.22
8.19
8.15
2012
.93
.509
9.20
9.20
9.20
9.20
9.20
9.19
9.19
9.17
9.12
9.08
9.03
2113
.59
.535
9.67
9.67
9.67
9.67
9.66
9.66
9.66
9.64
9.58
9.53
9.47
2214
.22
.560
10.1
010
.10
10.1
010
.10
10.1
010
.10
10.1
010
.10
10.0
0 9
.96
9.9
8
2415
.52
.611
11.0
11.0
11.0
11.0
11.0
11.0
11.0
11.0
10.9
10.8
10.7
2818
.11
.713
12.9
12.9
12.9
12.9
12.9
12.9
12.8
12.8
12.7
12.6
12.4
3019
.41
.764
13.8
13.8
13.8
13.8
13.8
13.8
13.8
13.7
13.5
13.4
13.2
3220
.70
.815
14.7
14.7
14.7
14.7
14.7
14.7
14.7
14.6
14.4
14.2
14.0
3623
.29
.917
16.6
16.6
16.6
16.6
16.5
16.5
16.5
16.4
16.1
15.9
15.5
4025
.88
1.01
918
.418
.418
.418
.418
.418
.318
.318
.217
.817
.417
.0
4227
.18
1.07
019
.319
.319
.319
.319
.319
.219
.219
.118
.618
.217
.7
4428
.45
1.12
020
.220
.220
.220
.220
.220
.120
.119
.919
.418
.918
.4
4831
.04
1.22
222
.122
.122
.122
.022
.021
.921
.921
.721
.020
.419
.6
6038
.81
1.52
827
.627
.627
.627
.527
.427
.327
.226
.825
.524
.322
.8
5/16
2.84
1/4
2.33
3/16
1.66
1/8
1.00
NO
TE
: T
abul
ated
val
ues
are
in o
z⋅in.
T–165
TEC
HN
ICA
L S
EC
TIO
N
1016
.18
.637
2.32
2.32
2.32
2.32
2.32
2.31
2.31
2.31
2.31
2.31
2.31
2.31
2.30
2.27
2.24
Tab
le 5
0
Rat
ed T
orq
ue
(lb⋅⋅⋅⋅ ⋅in
) fo
r S
mal
l Pu
lleys
— 1
/4"
To
p W
idth
Bel
t W
idth
(in
)W
idth
Mu
ltip
lier
1/2
2.20
The
fol
low
ing
tabl
e re
pres
ents
the
tor
que
ratin
gs f
or e
ach
belt,
in it
s ba
se w
idth
, at
the
pred
eter
min
ed n
umbe
r of
gro
oves
, pi
tch
diam
eter
s an
d rp
m's
. T
hese
rat
ings
mus
t be
mul
tiplie
d by
the
app
ropr
iate
wid
th f
acto
r to
obt
ain
the
corr
ecte
d to
rque
ratin
g (s
ee S
tep
7 o
f SE
CT
ION
24,
on
page
T-1
50).
XL
(.2
00 in
) B
elts
Nu
mb
er o
f G
roo
ves
Pit
chD
iam
eter
mm
inch
es
10
1
00
500
100
0 1
160
145
0 1
600
175
0 2
000
250
0 3
000
350
0 5
000
800
010
000
rpm of
Fas
test
Sh
aft
1117
.78
.700
2.55
2.55
2.55
2.54
2.54
2.54
2.54
2.54
2.54
2.54
2.54
2.53
2.52
2.48
2.45
1219
.41
.764
2.78
2.78
2.78
2.78
2.78
2.78
2.78
2.77
2.77
2.77
2.77
2.76
2.75
2.70
2.65
1422
.63
.891
3.24
3.24
3.24
3.24
3.24
3.24
3.24
3.23
3.23
3.23
3.22
3.22
3.19
3.11
3.04
1524
.26
.955
3.47
3.47
3.47
3.47
3.47
3.47
3.47
3.47
3.46
3.46
3.45
3.44
3.41
3.32
3.23
1625
.88
1.01
93.
713.
713.
703.
703.
703.
703.
703.
703.
693.
693.
683.
673.
633.
523.
41
1829
.11
1.14
64.
174.
174.
174.
164.
164.
164.
164.
154.
154.
144.
134.
124.
063.
903.
75
2032
.33
1.27
34.
634.
634.
634.
624.
624.
624.
614.
614.
614.
594.
584.
564.
484.
264.
05
2133
.96
1.33
74.
864.
864.
864.
864.
854.
854.
844.
844.
844.
824.
804.
784.
694.
434.
19
2235
.59
1.40
15.
095.
095.
095.
095.
085.
085.
075.
075.
065.
055.
035.
004.
904.
604.
32
2438
.81
1.52
85.
565.
565.
555.
555.
545.
545.
535.
535.
525.
495.
475.
435.
314.
924.
56
2845
.29
1.78
36.
486.
486.
486.
476.
466.
456.
446.
446.
426.
386.
346.
296.
095.
474.
89
3048
.51
1.91
06.
956.
956.
946.
936.
926.
906.
906.
896.
876.
826.
776.
716.
465.
704.
99
7/16
1.89
3/8
1.59
5/16
1.29
1/4
1.00
NO
TE
: T
abul
ated
val
ues
are
in lb
⋅ in.
T–166
TEC
HN
ICA
L S
EC
TIO
N
1
00
300
5
00
700
100
0 1
200
130
0 1
500
160
0 1
800
200
0 2
200
230
0 2
500
270
0 2
800
300
0 3
200
360
0 4
000
420
0 4
600
480
0 5
000
550
0 6
000
700
0 8
000
900
010
000
Pit
chD
iam
eter
mm
inch
es
19 30.4
1.19
70.
030.
070.
110.
130.
190.
210.
230.
250.
270.
300.
320.
350.
360.
380.
400.
400.
430.
440.
480.
520.
540.
560.
580.
590.
630.
670.
720.
790.
840.
89
18 28.8
1.13
40.
030.
050.
090.
130.
170.
200.
210.
240.
250.
280.
310.
320.
340.
360.
380.
390.
400.
430.
460.
500.
510.
540.
550.
560.
600.
630.
680.
740.
790.
84
16 25.6
1.00
80.
030.
050.
080.
120.
160.
190.
200.
210.
230.
250.
270.
300.
300.
320.
340.
350.
360.
380.
400.
430.
440.
470.
480.
500.
540.
560.
62 — — —
20 32 1.26
0.03
0.07
0.11
0.15
0.20
0.23
0.24
0.27
0.28
0.31
0.34
0.36
0.38
0.40
0.42
0.43
0.46
0.47
0.51
0.55
0.56
0.59
0.62
0.63
0.67
0.70
0.76
0.83
0.89
0.94
2235
.15
1.38
40.
040.
070.
120.
160.
210.
250.
270.
300.
310.
350.
380.
400.
420.
440.
460.
470.
500.
520.
560.
600.
620.
660.
670.
680.
720.
760.
840.
910.
971.
03
2438
.35
1.51
0.04
0.08
0.13
0.17
0.24
0.27
0.30
0.32
0.35
0.38
0.40
0.43
0.44
0.48
0.50
0.51
0.54
0.56
0.60
0.66
0.67
0.71
0.74
0.75
0.79
0.84
0.93
0.99
1.06
1.13
2641
.55
1.63
60.
040.
080.
130.
190.
250.
300.
320.
350.
380.
400.
440.
470.
480.
510.
550.
560.
590.
620.
660.
710.
720.
780.
790.
820.
860.
910.
991.
071.
151.
22
1524
.05
0.94
70.
030.
050.
080.
110.
150.
170.
190.
200.
210.
230.
250.
270.
280.
300.
310.
320.
340.
350.
380.
400.
420.
440.
460.
47 — — — — — —
1422
.45
0.88
40.
030.
040.
080.
110.
130.
160.
170.
190.
200.
210.
240.
250.
270.
280.
300.
300.
310.
340.
360.
380.
390.
420.
430.
44 — — — — — —
1219
.25
0.75
80.
010.
040.
070.
080.
120.
130.
150.
160.
170.
190.
200.
210.
230.
240.
250.
250.
270.
280.
310.
320.
340.
360.
360.
38 — — — — — —
2844
.75
1.76
20.
040.
090.
150.
200.
270.
320.
340.
380.
400.
440.
470.
510.
520.
550.
590.
600.
630.
660.
710.
760.
790.
830.
860.
870.
930.
981.
071.
151.
231.
31
30 47.9
1.88
60.
050.
090.
160.
210.
300.
350.
360.
400.
430.
470.
510.
550.
560.
590.
630.
640.
670.
710.
760.
820.
840.
900.
910.
940.
991.
051.
151.
231.
331.
41
32 51.1
2.01
20.
050.
110.
170.
230.
310.
360.
390.
430.
460.
500.
540.
580.
600.
630.
670.
680.
720.
750.
820.
870.
900.
950.
981.
011.
061.
111.
221.
331.
411.
50
4063
.85
2.51
40.
070.
130.
210.
300.
390.
460.
480.
550.
580.
630.
670.
720.
750.
790.
830.
860.
900.
941.
021.
091.
131.
191.
221.
251.
331.
391.
531.
651.
77 —
6095
.65
3.76
60.
090.
200.
320.
430.
590.
680.
720.
820.
860.
941.
021.
091.
131.
191.
261.
291.
351.
411.
531.
641.
691.
781.
841.
882.
002.
09 — — — —
rpm of
Fas
test
Sh
aft
[Tab
ula
ted
valu
es a
rein
hp
]
Sha
ded
area
indi
cate
s dr
ive
cond
ition
s w
here
red
uced
ser
vice
life
can
be
expe
cted
.
The
fol
low
ing
tabl
e re
pres
ents
the
hor
sepo
wer
rat
ings
for
eac
h be
lt, i
n its
bas
ew
idth
, at
the
pre
dete
rmin
ed n
umbe
r of
gro
oves
, pi
tch
diam
eter
s an
d rp
m's
. T
hese
ratin
gs m
ust
be m
ultip
lied
by t
he a
ppro
pria
te w
idth
fac
tor
to o
btai
n th
e co
rrec
ted
torq
ue r
atin
g (s
ee S
tep
7 o
f SE
CT
ION
24,
on
page
T-1
50).
Tab
le 5
1
Rat
ed H
ors
epo
wer
fo
r S
mal
l Pu
lleys
— 1
0 m
m W
idth
Nu
mb
er o
f T
eeth
Bel
t W
idth
(m
m)
Wid
th M
ult
iplie
r4 0.4
6 0.6
10 1.0
25 2.5
16 1.6
T5
mm
Pit
ch B
elts
T–167
TEC
HN
ICA
L S
EC
TIO
N
100
200
500
600
800
1000
1200
1400
1500
1600
1800
2000
2200
2400
2500
2600
2800
3000
3200
3400
3600
3800
4000
4200
4400
4600
4800
5000
5500
6000
Pit
chD
iam
eter
mm
inch
es
20 63.8
2.51
20.
090.
160.
350.
420.
540.
640.
740.
840.
890.
931.
021.
101.
181.
261.
301.
331.
411.
481.
541.
611.
661.
731.
781.
851.
901.
962.
012.
072.
192.
32
1857
.45
2.26
20.
080.
150.
320.
380.
480.
580.
670.
750.
790.
830.
910.
991.
051.
131.
171.
191.
261.
331.
381.
451.
501.
561.
611.
661.
721.
761.
811.
861.
972.
08
16 51.1
2.01
20.
080.
130.
280.
340.
430.
510.
590.
670.
710.
750.
820.
890.
941.
011.
031.
061.
131.
181.
231.
291.
331.
381.
431.
481.
521.
571.
611.
651.
761.
85
21 672.
638
0.09
0.17
0.38
0.44
0.56
0.67
0.78
0.89
0.93
0.98
1.07
1.15
1.23
1.31
1.35
1.39
1.48
1.54
1.61
1.69
1.76
1.81
1.88
1.94
2.00
2.05
2.12
2.17
2.31
2.43
2476
.55
3.01
40.
110.
200.
430.
500.
640.
760.
891.
011.
061.
111.
221.
331.
421.
521.
561.
601.
691.
771.
851.
932.
002.
082.
152.
212.
282.
352.
412.
482.
632.
78
2579
.75
3.14
0.12
0.20
0.44
0.52
0.67
0.80
0.93
1.05
1.11
1.17
1.27
1.38
1.48
1.57
1.62
1.66
1.76
1.84
1.92
2.00
2.08
2.16
2.24
2.31
2.37
2.44
2.52
2.57
2.74
2.90
26 82.9
3.26
40.
120.
210.
460.
540.
700.
830.
971.
091.
151.
211.
331.
431.
531.
641.
691.
731.
821.
922.
002.
082.
172.
252.
322.
402.
472.
552.
612.
682.
863.
00
15 47.9
1.88
60.
070.
120.
270.
310.
400.
480.
560.
630.
670.
700.
760.
830.
890.
940.
970.
991.
051.
101.
151.
211.
251.
30 — — — — — — — —
14 44.7
1.76
0.07
0.11
0.25
0.30
0.38
0.44
0.52
0.59
0.62
0.66
0.71
0.76
0.83
0.89
0.91
0.94
0.98
1.03
1.07
1.13
1.17
1.21 — — — — — — — —
1238
.35
1.51
0.05
0.09
0.21
0.25
0.32
0.39
0.44
0.51
0.54
0.56
0.62
0.66
0.71
0.75
0.78
0.80
0.84 — — — — — — — — — — — — —
27 86.1
3.39
0.12
0.21
0.48
0.56
0.72
0.86
1.01
1.13
1.19
1.26
1.37
1.49
1.60
1.70
1.74
1.80
1.89
1.98
2.08
2.16
2.25
2.33
2.41
2.49
2.57
2.64
2.72
2.79
2.96
3.12
3095
.65
3.76
60.
130.
240.
540.
630.
790.
971.
111.
261.
331.
391.
531.
651.
771.
891.
942.
002.
112.
212.
312.
402.
492.
592.
682.
762.
862.
943.
023.
103.
293.
47
4012
7.5
5.01
80.
190.
320.
710.
831.
061.
271.
491.
681.
771.
862.
042.
202.
362.
522.
592.
672.
802.
953.
083.
203.
343.
463.
583.
693.
81 — — — — —
4815
2.95
6.02
20.
230.
390.
860.
991.
271.
541.
782.
012.
122.
242.
442.
642.
833.
023.
113.
193.
373.
533.
693.
853.
97 — — — — — — — — —
Sha
ded
area
indi
cate
s dr
ive
cond
ition
s w
here
red
uced
ser
vice
life
can
be
expe
cted
.
The
fol
low
ing
tabl
e re
pres
ents
the
hor
sepo
wer
rat
ings
for
eac
h be
lt, i
n its
bas
ew
idth
, at
the
pre
dete
rmin
ed n
umbe
r of
gro
oves
, pi
tch
diam
eter
s an
d rp
m's
. T
hese
ratin
gs m
ust
be m
ultip
lied
by t
he a
ppro
pria
te w
idth
fac
tor
to o
btai
n th
e co
rrec
ted
torq
ue r
atin
g (s
ee S
tep
7 o
f SE
CT
ION
24,
on
page
T-1
50).
Tab
le 5
2
Rat
ed H
ors
epo
wer
fo
r S
mal
l Pu
lleys
— 1
0 m
m W
idth
Nu
mb
er o
f T
eeth
rpm of
Fas
test
Sh
aft
[Tab
ula
ted
valu
es a
rein
hp
]
5015
9.3
6.27
20.
230.
400.
891.
051.
331.
601.
852.
092.
212.
322.
552.
752.
953.
143.
233.
333.
513.
673.
854.
014.
17 — — — — — — — — —
7222
9.35
9.03
0.34
0.59
1.27
1.50
1.92
2.31
2.67
3.02
3.19
3.35
3.66
3.97
4.25
4.53
4.67 — — — — — — — — — — — — — — —
Bel
t W
idth
(m
m)
Wid
th M
ult
iplie
r4 0.4
6 0.6
10 1.0
16 1.6
T10
mm
Pit
ch B
elts
25 2.5