Drive mechanism selection

From Open Source Ecology
Jump to: navigation, search

A drive mechanism is the part of a machine that, through power provided by a motor, performs the intended task of a machine. It can for example be a belt moving a box or a ball screw lifting or lowering heavy equipment.

Use the table below to identify the type of drive mechanism that is the most suited for your intended application.

Belt drives Chain drives Rack/Gear and pinion Roller Pinon/rack Leadscrews Ballscrews Linear Motors
Accuracy Low Low Low-High High Low Low-High High
Backlash/Vibration A consideration A consideration A consideration Near Zero A consideration A consideration Near Zero
Acceleration Medium Low High High Low Medium High
Speed Medium Low Medium High Low Medium High
Load capacity Low Medium High High Low High Low
Length Shorter Shorter Long Long Shorter Shorter Moderate
High wear and short life A consideration A consideration A consideration Long life A consideration A consideration Long life
Maintenance A consideration A consideration A consideration Low to none A consideration A consideration Low to none
Noise level Medium High Medium Low High Medium Low
Dust and dirt emissions High High Moderate Low to none Moderate Moderate Low to none

See also

Guide to machine design