Types of Motion
Types of Gear Assemblies
Mechanism Terms
Parts of a Gear Assembly
Gear Terms
100

Circular movement

Rotary Motion

100

A combination of two or more gears used to transmit motion between two rotating shafts or between a shaft and a slide.

Simple Gear Train

100

Push or pull on an object

Force

100

The gear which transmits power and motion to the rest of the system. The input gear.

Drive Gear

100

A connected flexible series of links used for fastening or securing objects and pulling or supporting loads

Chain

200

The distance between adjacent threads in a screw

Pitch

200

One pair of gears used to connect two shafts whose axes intersect

Bevel Gear

200

The ability to do work.

Energy

200

Something put into a system such as resources, to achieve a desired result.

Input

200

The part of the machine which contains 2 or more pieces arranged so that the motion of one compels the motion of the other.

Mechanism

300

Movement in a straight line

Linear Motion

300

A mechanical arrangement consisting of a toothed wheel driven by a short revolving cylinder bearing a screw thread.

Worm and Wheel Gear

300

A twisting Force

Torque

300

Opposite in position, direction, order, or effect.

Inverse

300

A gear between the drive and driven gears used to change rotational direction

Idler Gear

400

A swing back and forth at a regular rate

Oscillate Motion

400

A pivot pin near the outside edge of a wheel or disk that changes rotary motion into reciprocating motion

Crank and Slider Gear

400

The application of force that moves an object a certain distance.

Work

400

The results of operation of any system

Output

400

A toothed wheel that works with others to alter the relation between the speed of an engine and the speed of the driven parts

Gear

500

 Back and forth movement

Reciprocating Motion

500

A rotating gear that meshes with a bar that has gear teeth along its length. Changes rotating motion into linear motion.

Rack and Pinion

500

Tooth like projections arranged on a wheel rim to engage the links of a chain.

Sprocket

500

The member of the pair of gears to which motion and power are transmitted by the other. The output gear

Driven Gear

500

The ratio of the speed of the driving member of a gear train to that of the driven member.

Gear Ratio