a b - sew-eurodrive

7 Sealing systems

88 Industrial Gear Units: Bucket Elevator Drives of the MC... / M... Series

Pi

fkVA

Hz

n

7 Supplementary Equipment7.1 Sealing systems

The input shaft (A) or output shaft (B) can optionally be equipped with a double oil seal[1] with relubricating dust protection cover.

52057AXX

The selected sealing system does not affect the dimensions of the shaft ends.

[1]

[1]

A B

7Fan

Industrial Gear Units: Bucket Elevator Drives of the MC... / M... Series 89

Pi

fkVA

Hz

n

7.2 Fan

Do not block the air intake (shaded area)!

A fan may be installed if the thermal power PT of the gear unit determined in the "ProjectPlanning" section is exceeded. The rotational direction of the gear unit has no effect onfan operation.

MC3R..02..09

50529AXX

Ød3

Y4

30°

Y1

B1 B1

A1

A1

Gear unit type

A1 B1 Y4 Y1 Air intake

[mm] [mm] [mm] [mm]Ød3

[mm]Angle

MC3RL..02 158 160 70 100 109

30°

MC3RL..03 178 165 82 112 131

MC3RL..04 198 185 90 120 131

MC3RL..05 213 195 95 125 156

MC3RL..06 232 220 100 130 156

MC3RL..07 262 230 105 135 156

MC3RL..08 297 255 105 135 198

MC3RL..09 332 265 110 140 226

7 Fan


Pi

fkVA

Hz

n

M3R..70..90

51641AXX

With the fan option, dimension A in the table differs from the data in section 6"Dimension Sheets."

Gear unit type

A Bmin X1 X2

[mm] [mm] [mm] [mm]

M3R..70 1278 20 518 689

M3R..80 1328 20 554 729

M3R..90 1499 20 598 769

X1

X2

A

B

7Oil heater


Pi

fkVA

Hz

n

7.3 Oil heaterThe oil heater is required to ensure lubrication at startup in case of extremely lowambient temperatures.

MC3R..02..09

50530AXX[1] Oil heater[2] Temperature sensor[3] Thermostat

Position of temperature sensor [2] for gear unit sizes MC3RL..04 - 06

50538AXX

Gear unit typePower Voltage

[W] [VAC]

MC3RL..04

600

1~ 230 / 3~ 400

MC3RL..05

MC3RL..06

MC3RL..07

1200MC3RL..08

MC3RL..09

[1][2]

[3]

[2]

[3]

[1]

7 Oil heater


Pi

fkVA

Hz

n

M3R..70..90

51642AXX[1] Oil heater[2] Temperature sensor[3] Thermostat

Gear unit typePower Voltage

[W] [VAC]

M3R..70 1500

1~ 230 / 3~ 400M3R..80 2000

M3R..90 2330

[1] [2]

[3]

9

7PT100 temperature sensor


Pi

fkVA

Hz

n

7.4 PT100 temperature sensorThe PT100 temperature sensor can be used to measure the gear unit oil temperature.

Dimension drawing

50533AXX

Electrical connection

50534AXX

Technical data • Sensor tolerance ± (0.3 + 0.005 x t) (corresponds to DIN IEC 751 Class B), t = oiltemperature

• Plug connector DIN 43650 PG9 (IP65)• Tightening torque for the retaining screw at the rear of the plug connector for the

electrical connection = 25 Nm

24

Ø8

150

R1/2

35PG9, PG11

34

32 1

7 Swing base


Pi

fkVA

Hz

n

7.5 Swing baseSwing bases for bucket elevator drives are manufactured whenever an order is placed.

51743AXX

Torque arm MC3R..02..09

An optional torque arm is available for the swing base. The length HA of the torque armcan be freely selected in the range from HAmin and HAmax . The torque arm is deliveredas special design if HA must be greater than HAmax.

50553AXX

Gear unit type

HA JT JS ØMT

min...max[mm] [mm] [mm] [mm]

MC3RL..02MC3RL..03 360...410

148 100 18MC3RL..04MC3RL..05 405...455

MC3RL..06MC3RL..07 417...467

MC3RL..08MC3RL..09 432...482 188 130 22

JSJT

4 x Ø MT

HA

7Swing base


Pi

fkVA

Hz

n

Torque arm M3R..70..90

The length HA of the torque arm can be freely selected in the range from HAmin andHAmax .The length HA must be specified in the order. The torque arm is delivered as specialdesign if HA must be greater than HAmax.

51643AXX

[1] and [2] are included in the scope of delivery

Gear unit type

HA JS/JT ØMT

min...max[mm] [mm] [mm]

M3R..70

175...1070 180 26M3R..80

M3R..90

HA

JT

[1]

[2]

JS

4 x Ø MT

7 Cooling coil M3R70..90


Pi

fkVA

Hz

n

7.6 Cooling coil M3R70..90If the thermal power PT of the gear unit determined in section "Project planning" isexceeded, M3R70..90 gear units can be equipped with a cooling coil.The cooling coil is a helical pipe with water flowing through it. The cooling coil is locatedin the oil pan inside the gear unit. The customer must ensure a minimum flow volume asspecified in the order documents.

A cooling coil is generally used with splash lubrication• in conjunction with a fan if the thermal power of the fan alone is not sufficient• instead of the fan if a fan cannot be used due to the ambient conditions.

Data required for project planning:• Cooling water input temperature• Permitted temperature increase of the cooling water

52087AXX[1] Thermostatic valve for controlling the flow of water[2] Thermometer, temperature display range 0...100 °C[3] Cooling coil, stainless steel AISI 316[4] Return water R1/2 (male thread)[5] Water supply R1/2 (female thread)

[2]

[5] [4]

[1] [3]

170~

7Pressure lubrication M3R70..90


Pi

fkVA

Hz

n

7.7 Pressure lubrication M3R70..90This section describes pressure lubrication for M3R70...90 gear units. (For pressurelubrication of MC3R..02...09 gear units → consult SEW-EURODRIVE).Pressure lubrication is used • to ensure adequate lubrication of input-end gearing and bearings at certain

operating conditions (see section 4 "Selection tables." Marked with "*" means"pressure lubrication required")

• when the gear unit must be cooled by an external oil/water or oil/air cooling system.Consult SEW-EURODRIVE in this case.

When pressure lubrication is used, the oil level is low. Gearing and bearing notsubmerged in the oil bath are lubricated through a shaft end pump or a motor pump.

For exact dimensions of the pressure lubricating unit, refer to the order-specificdimension drawing.

Shaft end pump M3R 70...90

The maintenance-free RHP shaft end pump [1] is suited for operation in both directionsof rotation.

52058XX

For operation with variable input speed, it is essential to consult SEW-EURODRIVE.

The standard scope of delivery includes• RHP shaft end pump [1]• instrumentation version "IP" comprising

– visual pressure gauge (0...10 bars)– pressure switch

• piping and tube connections

[1] [1]

7 Pressure lubrication M3R70..90


Pi

fkVA

Hz

n

Visual pressure gauge:Function: The system serves to visually indicate the pressure in the pressure lubricatingsystem.

52084AXX

Pressure switch:Function: The electric contact opens when the switching point is reached and serves tomonitor the functioning of pressure lubrication.Connection:

52085AXXTechnical data:

Cable connection: PG 9

Electrical connection: DIN 43650 - AF3

Switching point 0.5 bars (= factory setting)

Max. starting frequency 10 / min

Thermal stability -40 °C ... +85 °C

Switching capacity 0.1 A / AC 250 V

Overpressure-proof up to 15 bars

Type of protection IP 65

Housing material AlMg5

1

2

3

12

3

In

Out N.O.

Out N.C.

7Pressure lubrication M3R70..90


Pi

fkVA

Hz

n

Motor pump M3R 70...90

The MHP motor pump is suited for operation in both directions of rotation.

52059AXX[1] Motor pump

The standard scope of delivery includes• MHP motor pump comprising

– AC motor– coupling between AC motor and gear wheel pump– gear wheel pump

• instrumentation version "IP" comprising– visual pressure gauge (0...10 bars)– pressure switch

• piping and tube connections• bracket installed on the gear unit to accommodate the motor pump.

AC motor:Supply voltage: 220-240 V / 380-420 V, 50 Hz

Instrumentation IPSee shaft end pump

Consult SEW-EURODRIVE in case of deviating supply voltages and/or 60 Hz operation.

Other optional instruments (flow monitor, temperature monitor, ...) and optionalequipment (oil filter, ...) are also available. Consult SEW-EURODRIVE.

[1]

7 Auxiliary drives with motor adapter AM.. (NEMA) for empty buckets


Pi

fkVA

Hz

n

7.8 Auxiliary drives with motor adapter AM.. (NEMA) for empty buckets [mm]

MC3R..02..09

M3R..70..90

B5 C5 E5 F5 G2 G5 L5 S5 Z5 Z12 D1 L1 T1 U1

MC3RL..02 KF.. 37AM56

114.311

149.2 4.5 120 170-4.8

10.593.5 16.5 15.875 47 18.1

4.76AM143 12 3 117 14.5 22.225 57 24.7

MC3RL..03MC3RL..04

KF.. 47AM56

114.311

149.2 4.5 160 170-4.8

10.587 16.5 15.875 47 18.1

4.76AM143 12 3 110.5 14.5 22.225 57 24.7

MC3RL..05MC3RL..06

KF.. 67AM56

114.311

149.2 4.5 160 170-4.8

10.587 16.5 15.875 47 18.1

4.76AM14312 3 110.5 14.5 22.225 57 24.7

AM145

MC3RL..07 KF.. 77

AM56114.3

11149.2 4.5

200170

-4.810.5

81 16.5 15.875 47 18.14.76AM143

12 3 103.5 14.5 22.225 57 24.7AM145AM182 215.9 10 184 5 228 3 15 139.5 16.5 28.575 69 31.7 6.35

MC3RL..08MC3RL..09

KF.. 77

AM56114.3

11149.2 4.5

200170

-4.810.5

81 16.5 15.875 47 18.14.76AM143

12 3 103.5 14.5 22.225 57 24.7AM145AM182

215.9 10 184 5 228 3 15 139.5 16.5 28.575 69 31.7 6.35AM184

B5 C5 E5 F5 G2 G5 L5 S5 Z5 Z12 D1 L1 T1 U1

M3R...70M3R.. 80M3R...90

KF.. 87

AM143114.3 12 149.2 4.5

250170

3

10.5 98.5 14.5 22.225 57 24.7 4.76AM145AM182

215.9 10 184 5 228 15 134.5 16.5 28.575 69 31.7 6.35AM184

7Auxiliary drives with motor adapter AM.. (NEMA) for filled buckets


Pi

fkVA

Hz

n

7.9 Auxiliary drives with motor adapter AM.. (NEMA) for filled buckets [mm]

MC3R..02...09B5 C5 E5 F5 G2 G5 L5 S5 Z5 Z12 D1 L1 T1 U1

MC03R...02 SF..67AM56

114.311

149.2 4.5 120 170-4.8

10.593.5 16.5 15.875 47 18.1

4.76AM14312 3 117 14.5 22.225 57 24.7

AM145

MC03R...03MC03R...04

SF..77AM56

114.311

149.2 4.5 200 170-4.8

10.581 16.5 15.875 47 18.1

4.76AM14312 3 103.5 14.5 22.225 57 24.7

AM145

MC03R...05 SF..77

AM56114.3

11149.2 4.5

200170

-4.810.5

81 16.5 15.875 47 18.14.76AM143

123

103.5 14.5 22.225 57 24.7AM145AM182 215.9 10 184 5 228 15 139.5 16.5 28.575 69 31.7 6.35

MC03R...06 SF..87

AM143114.3 12 149.2 4.5

250170 3 10.5 98.5 14.5 22.225 57 24.7 4.76

AM145AM182

215.9 10 184 5 228 3 15 134.5 16.5 28.575 69 31.7 6.35AM184

MC03R...07MC03R...08

SF..97AM182

215.9 10 184 5 300 228 3 15 129.5 16.5 28.575 69 31.7 6.35AM184

MC03R...09SF..97

AM182215.9

10184 5 300 228

315

129.5 16.5 28.575 69 31.7 6.35AM184AM213/215 11 6.3 178.5 15.8 34.925 85 38.7 7.94

7 Auxiliary drives with motor adapter AM.. (NEMA) for filled buckets [mm]


Pi

fkVA

Hz

n

M3R..70..90B5 C5 E5 F5 G2 G5 L5 S5 Z5 Z12 D1 L1 T1 U1

M3R...70M3R...80

KF..107

AM182

215.9

10

184 5 350 228

3

15

123.5 16.5 28.575 69 31.7 6.35AM184

AM213/215 11 6.3 172.5 15.8 34.925 85 38.7 7.94

AM254/256 12 6.3 223 8.8 41.275 101 45.8 9.53

M3R...90 KF..107

AM182

215.9

10

184 5350

228

3

15

123.5 16.5 28.575 69 31.7 6.35AM184

AM213/215 11 6.3 172.5 15.8 34.925 85 38.7 7.94

AM254/256 12 6.3 223 8.8 41.275 101 45.8 9.53

AM284/286 266.7 15 228.6 5 286 6.3 15 230 15.8 47.625 117 53.4 12.7

a b - sew-eurodrive

Documents