AC gearmotor
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Requested type designation:
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 		Select type designation
Gear unit design:
Motor type:
Country/area of use:
Motor power P [kW] / Torque Ma [Nm]:
±
 / 
±
Output speed na [1/min] / Gear ratio i:
±
 / 
±
Service factor fB:
±
International efficiency class (IE):
Number of poles:
Duration factor:
Adapter between gear unit and motor:
Especially low output speeds:
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Calculate application
Select application, enter data, receive drive recommendation: very simple with the drive selection.
Search tolerance - Motor power:
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Search tolerance: -20% / +50%
 
 
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Search tolerance - Torque:
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Search tolerance: -20% / +100%
 
 
Change search tolerance
Search tolerance - Output speed:
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Search tolerance: -20% / +50%
 
 
Change search tolerance
Search tolerance - Gear ratio:
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Search tolerance: -20% / +50%
 
 
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Search tolerance - Service factor:
Your search: No search
Search tolerance: -20% / +200%
 
 
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Service factor

Every gearmotor was assigned a service factor in the SEW catalogue. 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 catalogue for more information:

International efficiency class (IE)
Especially low output speeds
By activating "especially low speed", the search for the motor power and service factor will be ignored. Mamax [Nm] must be adhered to because the motor can overload the gear unit.