Precision Gearhead Application Considerations - a gearhead is typically chosen to increase the output torque or to reduce the output speed. This 2-page tutorial details other specific items to keep in mind when specifying a gearhead including:
Backlash
Bearing choice
Lubrication
Input speed and direction of rotation
Blocking, stalling, and backdriving
How To Select a Reduction Gearhead - a 2-page tutorial detailing the step-by-step procedures on to select a precision gearhead. It includes the calculations necessary to determine: