MECHANICAL GEAR DRIVE TYPES BASICS AND TUTORIALS


Speed Reducer.
Economically, it is normally better to use a small, high-speed prime mover and gear-reducer combination than a larger, low-speed power source.

Speed Increaser.
In some instances, it is impractical to operate a prime mover at a speed high enough to suit requirements of the driven equipment. For such applications, gears may be used as a speed increaser.

Positioning. It may be necessary to index or position objects with a shaft that does not normally make a complete revolution.The relative load to drive size may make it practical to use gearing or gear drives.

Shaft Orientation. Gear drives are furnished with various shaft orientations and speed ratios. Some common arrangements that are available include: in-line, parallel shaft, and right angle.

Miter gears (1:1-ratio bevel gears), for example, serve the specific purpose of providing a 90° shaft orientation. Other angles can be supplied by specially designed gears of several types.

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