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DARRYLM
Jan 20, 2008, 10:18 AM
If the drive sprocket has a diameter of 4.2 inches, the driven sprocket connected to the gear box has a diameter of 8.7 inches, and the gear box itself has a gear ratio of 50:1. What is the output RPM if the motor is running at 1000 RPM?

jas83
Apr 11, 2009, 05:37 AM
if u have the diameter of the sprocket of both the driven and the drive, rpm of motor and the ratio of the gearbox, then

rpm of the driven sprocket= diameter of the drive sproket x rpm of the main motor divided by the diameter of tne driven sproket.

output of the gearbox: 50 divided for rpm of the driven sproket.

dharitri
Jun 28, 2012, 06:34 PM
How to decide motor rpm?