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isaacloganathan
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Join Date: Apr 2009
Posts: 9

Rated RPM vs Maximum RPM

05/20/2009 11:55 PM

Can anybody tell me the diffrence between rated RPM & Maximum RPM of a servo motor...
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rakesh_semwal
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Location: India, 200 Km. North of Delhi.
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#1

Re: Rated RPM vs Maximum RPM

05/21/2009 2:04 AM

Max RPM is free running RPM (with out any load)

Rated RPM is RPM at rated output or at rated laod(torque).
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Anonymous Poster
#2

Re: Rated RPM vs Maximum RPM

05/22/2009 4:02 AM

The difference is when it goes bang.
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Anonymous Poster
#3

Re: Rated RPM vs Maximum RPM

05/22/2009 9:55 AM

A servo motor doesn't have a "rated RPM" because it is not supposed to run at a fixed speed, but varying according to the closed loop needs or system design, otherwise you wouldn't need a servo; but they do have a maximum RPM and that is the speed limit before the servo motor gets damaged by centrifugal force shattering its rotor. Load is irrelevant as long as it doesn't surpass the current limit and mechanical capacities of the motor.

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