AC gearmotor
R77/II2GDEDRE112M4/3G
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Approval:
Gear unit design:
Gear unit approval:
Country/area of use:
Motor power P [kW]
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Torque Ma [Nm]:
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Your search: 3 kW
Search tolerance: -20% / +50%
Where to search: 2,4 kW - 4,5 kW
 
 
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Your search: No search
Search tolerance: -20% / +100%
 
 
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Output speed na [1/min]
 / 
Gear ratio i:
±
Your search: 55 1/min
Search tolerance: -20% / +50%
Where to search: 44 1/min - 82,5 1/min
 
 
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Your search: No search
Search tolerance: -20% / +50%
 
 
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Service factor fB:
±
Your search: 1,2
Search tolerance: -20% / +200%
Where to search: 0,96 - 3,6
 
 
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Every gearmotor was assigned a service factor in the SEW catalog. The service factor is the ratio between gear unit rated power and rated motor power. There are no standards on how to determine service factors. This is why service factors vary from manufacturer to manufacturer and cannot be compared.


Example:

R47DRN90L4 / i=23,28 / Ma [Nm] = 225 / fB 1,3
R47 - Mamax [Nm] = 300
Mamax / Ma = fB
300 Nm / 225 Nm = 1,33 (~1,3)


Refer to the catalog for more information:
International efficiency class (IE):
Further selection criteria
Number of poles:
Duration factor:
Explosion-proof drive
Atmosphere:
Zone:
Explosion-protected design:
Group:
Temperature class:
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