Does the 0.5 Nm rating for a geared DC motor apply before or after the gearbox?

[mechapeno]

Hello everyone

For a project I'm currently working on, I need a dc motor which can generate a torque of about 0.1-0.2 Nm (or more) with a rpm of about 120-200.

http://uk.farnell.com/crouzet/82861015/motor-geared-24vdc-430rpm/dp/3115616?Ntt=CROUZET+-+82861015.+-+MOTOR%2C+GEARED%2C+24VDC%2C+430RPM

The geared motor of the above link, (data sheet: http://www.farnell.com/datasheets/30394.pdf) looks promising at first sight, but when you browse some more on farnell.com, you encounter a lot of these 'Crouzet' motors which are priced equally, have the same torque, but different rotational speed.

So, I was wondering: is this 0.5Nm torque the torque the motor delivers as input to the gearbox (so the output torque - after the gearbox has done it's job - is higher/lower) or is this really the applicable torque and rpm for the motor?

Thanks in advance!

 

[anorlunda]

When people quote numbers for devices like that, they almost always are the "rated" numbers. Rated usually, but not necessarily means maximum.