Determine the torque of a driver if driven is known

1. Sep 1, 2011

leeu56

I have a driver wheel at 6 meters diameter, expected Rpm=4, Torque=?,

Using two angle drives, at ratios of 40:1 and 10:1 inline (in>4rpm x 40=160rpm>out) & (in>160rpm x 10=1600rpm @3,300nm) driven side,

2. Sep 3, 2011

LawrenceC

If the rpm goes up by a factor of 400 due to gearing, the torque must decrease by a factor of 400. Therefore if you somehow measure 3300 nm at the driven end, the torque of the driver is 400*3300 nm. However, this assumes there are no friction losses in the gearing. The driving torque will be greater than 1320000 nm due to the losses.

3. Sep 9, 2011

leeu56

Well that puts my nose out of per-portion, thank you for your reply