012 017 025 034 047 056 064 084 090 108 130 12.6 17.0 25.4 34.2 47.1 56.0 63.5 83.6 90.7 108.0 130.0
40 40 40 40 40 40 40 40 40 40 35 35 35 35 35 35 35 35 35 35 35 30
8800 8800 7000 7000 6300 6300 6300 5200 5200 5200 5200 8000 8000 6300 6300 5700 5700 5700 4700 4700 4700 4700 300 300 300 300 300 300 300 300 300 300 300
54 74 86 115 145 175 195 215 230 275 285 20 25 40 55 65 80 90 100 110 130 135
2.0 2.7 4.0 5.4 7.5 8.9 10.0 13.3 14.4 17.1 20.5
0.9 0.9 1.1 1.1 2.6 2.6 2.6 7.4 7.4 7.4 7.4
8.5 8.5 9.5 9.5 16.5 16.5 16.5 28.0 28.0 30.5 30.5
Displacement cm3⁄rev. Working pressuremax. intermittent MPamax. continuous MPaRevolutions max. intermittent rpmmax. continuous rpmmin. continuous rpmPowermax. intermittent kWmax. continuous kWStart torque theoreticalvalue Nm⁄MPaMass moment of inertia (x10-3) kg m2
Weight kg
Type
DataconcerningRPMarebasedonmaximumpremittedperiph-eralvelocityforthetaperedrollerbearings.
Sunfab SCM is a rangeof robust axial piston motors especially suitable for mobile hydraulics.
Sunfab SCMisofthebent-axistypewithsphericalpistons.Thedesignresultsinacompactmotorwithfewmovingparts,highstartingtorqueandhighreliability.
MotorSCM012-130 ISOGB
The SCMcoverstheentiredisplacementrange12-130cm3/revatamaximumworkingpressureof40MPa.MPa..
Sunfab SCM’s welldimen-sioned,doubletaperedrollerbearingspermithighshaftloadsandleadtoexcellentspeedcharacter-istics.
Intermittentpowerdataarebasedonmaximumcontinuousspeedandmaximumworkingpressure.
Continuouspowerdataarebasedonmaximumoutputpowerwithoutexternalcoolingofthemotorhousing.
Intermittentdutyisdefinedasfollows:max6secondsperminute,egpeakRPMwhenunloadingoraccelerating.
Sunfab SCM’shighlevelofreliabilityisbasedonthechoiceofmaterials,hard-eningmethods,surfacestructuresandthequalityassuredmanufacturingprocess.
°C 1000 2000 3000 4000 5000 6000 7000 8000 9000
012-034 N 75 0.55 0.27 0.18 0.14 0.11 0.09 0.08 0.07 0.06 H 75 2.46 1.23 0.82 0.61 0.49 0.41 0.35 0.31 0.27 V 90 0.55 0.27 0.18 0.14 0.11 0.09 0.08 0.07 0.06
047-064 N 75 0.55 0.27 0.18 0.14 0.11 0.09 0.08 H 75 2.46 1.23 0.82 0.61 0.49 0.41 0.35 V 90 0.55 0.27 0.18 0.14 0.11 0.09 0.08
084-130 N 75 0.38 0.19 0.13 0.10 0.08 0.06 H 75 1.72 0.86 0.57 0.43 0.34 0.29 V 90 0.38 0.19 0.13 0.10 0.08 0.06
SCM012-084,108-130 SCM012-034 SCM012-084,108-130 SCM012-130
SCM012-034 G SCM047-130 F
A C ESCM012-017 W25x1.25x18x9g W20x1.25x14x9gSCM025 W30x2x14x9g W25x1,25x18x9gSCM034 W30x2x14x9gSCM047–056 W35x2x16x9g W32x2x14x9g W30x2x14x9gSCM064 W35x2x16x9gSCM084–090 W40x2x18x9g W35x2x16x9gSCM108 W45x2x21x9g W40x2x18x9gSCM130 W45x2x21x9g
B DSCM012-017 ∅ 25k6 ∅ 20k6SCM025 ∅ 30k6 ∅ 25k6SCM034 ∅ 30k6SCM047–056 ∅ 35k6 ∅ 30k6SCM064 ∅ 35k6SCM084-090 ∅ 40k6SCM108-130 ∅ 45k6
Example
Type:MMotorwithfixeddisplacement
Size:012 Displacementcm3/rev.017025034047056064084090108130
Direction of rotation:W Independent
Shaft seal:N NitrileH Nitrile,highpressureV Viton,hightemperature
Versions, main data
Connection cover S Angled40°totheshaftcenterline K Combi R Sideportconnection V Angled90°totheshaftcenterline
Connections: ISOGthread Flange(SAEJ518,code62)
Type of shaft: Splineshaft(DIN5480)
Keyshaft(DIN6885)
Mounting flange: I4 ISO4-bolt(ISO3019-2)
Choice of shaft seal
Factorsaffectingthechoiceofshaftsealincludethehydraulicmotorhousingpressureandthedrainageoiltemperature.
Subject to design modifications without notice
Temp. Max. housing pressure MPa at rpm Motor SCM Code
Thedrainageoilshouldhaveamaximumtemperatureof75°CwithaNitrileshaftsealand90°CwithaVitonshaftseal.Thesetemperaturesmustnotbeexceeded.
CodeaccordingtoVersions,maindata.
(2x)
G 1⁄2
G3 ⁄4
80 h
8
20
5.75
(60) 20770.795
9 (4x)
8x7x32 6x6x32
W25
x1.2
5x18
x9g
W20
x1.2
5x14
x9g
M10
28
M10
2228
M6 22
28
M6 22
28
2528 2022
.5
4
40
4
4060 60
6
2848
6
2848
+10
G
40°
97
80 h
8
20
5.75
(60) 20970.795
9 (4x)
+10
40°
97
60114.5
50
1⁄2
G 1⁄2
G 1⁄2
22
53117
42
(128)
(2x)
G3 ⁄4
(2x)
G3⁄4
SCM 012-017Dimensions
SCM 025-034
G 1⁄2
(2x)
G3 ⁄4
100
h8
(75) 2097.25
25+10
40°
97
88.4118
11 (4x)
60114.5
50
8x7x40
W30
x2x1
4x9g
M123033
5
5075
2228
M12
2228
7
3560
G 1⁄2
(2x) 3
G⁄4
8x7x406
2853
M10
W25
x1.2
5x18
x9g
2528
5
5075
2228
M10
2228
53117
(128)
42
100
h8
(75) 2077.25
25+10
40°
97
88.4118
11 (4x)
G 1⁄2
G 1⁄2
(2x)
G3⁄4
SCM 047-064
G 1⁄2
7.25(92)
125
h8
242
40°
109
32+10
113.2142.5
13.5 (4x)
7.25(92)
125
h8
240
40°
109
32+10
146.5
5459
75
15375
23.8
23.8
50.8
50.8
19 (2x)19 (2x)
M10
(8x)
M10
(8x)
8x10x50
W35
x2x1
6x9g
3538 M12
5
6092
22
28
8
4173
8x7x50
W32
x2x1
4x9g
30
M12
22
28
33
5
6092
7
3567
7.25(92)
125
h8
70.8
248
40° 11
5
M10 (8x)
32+10
113.2142.5
13.5 (4x)
113.2142.5
13.5 (4x)
G 1⁄2
G 1⁄2
G 1⁄2
G 1⁄2
G 1⁄2
M12
2228
M12
28
W30
x2x1
4x9g
7
3567
153
50.8
19 (2
x)
23.8
22
M12
2228
AF F20° 20°
B
Kap
as 1
8 m
m fö
r hå
lsla
g
Generalinstructions
Shaft loadsThelifeofthemotorishighlydependentonthebearinglife.
Thebearingsareaffectedbyoperationconditionssuchasspeed,pressure,oilviscosityandfiltration.Externalloadontheshaft,aswellasitssize,directionandlocationalsoaffectthebearinglife.
Forcalculationofbearinglifeinspecialapplications,pleasecontactSunfabHydraulics.
InstallationThemotorhousingshouldbefilledwithoiltoatleast50%beforestarting.Thedrainagepipeshouldbeconnectedtotopmostdrainageoutlet.
Theotherendofthepipeshouldbeconnectedtotheoiltankatapointbelowtheoillevel.
PipingRecommendedoilvelocityinpressurelinemax.7m/sec.
FiltreringCleanlinessaccordingtoISOnorm4406,code16/13.
Radialload(N)
Bea
ring
life
(h)
PressureClockwise
rotation
PressureAnticlockwiserotation
Optimalforcedirectionofradialload
Temperatures/Housing coolingExcessivesystemtemperaturereducesthelifeoftheshaftsealandcanlowertheoilviscositybelowtherecommendedlevel.Asystemtemperatureof60°Candadrainflowtem-peratureof90°Cmustnotbeexceeded.Cooling/flushingofthemotorhousingcanbeneededtokeepthedrainflowtemperatureatanacceptablelevel.
Suggestedflow:MotorSCM Flushingl/min Cont.RPM 012-034 2-8 ≥2800 047-064 4-10 ≥2500 084-130 6-12 ≥2200
Hydraulic fluidsHighperformanceoilsmeetingISOspecifications–suchasHM,DIN51524-2HLP,orbetter–mustbeused.
Amin.viscosityof10cStisrequiredtokeepthelubrica-tionatasafelevel.
Theidealviscosityis20-40cSt.
Useful formulaes
Required flow rate Q = litres ⁄min.
Speed n = RPM
Torque M = Nm
Power P = kW
D = displacement, cm3⁄revolution
n = speed, revolution ⁄min
P = power, kW
Q = flow rate, litres ⁄min
ηv = volumetric efficiency
ηhm = hydraulic-mechanical efficiency
ηt = overall efficiency = ηv x ηhm
M = torque, Nm
∆p = pressure difference between the hydraulic motor inlet and outlet, MPaMPa
D x n1000 x ηv
Q x 1000 x ηv
D
D x ∆p x ηhm
6.3
Q x ∆p x ηt
60
Q
Qflush
Qflush
Qflush
Housingflushingcanbebuiltupwiththehelpofaflushingvalveortakendirectlyfromthereturnline.Whenthereturnpressureistoolowthisiscompensatedforbyacounterpressurevalve.Thetanklineisconnectedtothehighestpointasinthefigure.
Simplifiedcircuits
Flus
hing
val
ve
Cou
nter
pres
sure
valv
e
Counterpressurevalve
WARNINGWhen the motor is in use:1.Donottouchthepressurepipe2.Bewareofrotatingparts3.Themotorandpipescanreachhightemperatures
