Types of gears

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Types of gears

WORM GEARS

Disadvantages: 1.It is not possible for a worm wheel to drive a worm unless certain conditions are met

Applications: 1. It includes speed reducers, antireversing gear devices making the most of its self-locking features, machine tools, indexing devices, chain blocks, portable generators, etc.

Advantages: 1. It have a very quiet and smooth meshing action

Features: 1. It looks like a standard spur gear with slightly angled and curved teeth. 2.It changes the rotational movement by 90 degrees.

HELICAL GEARS

Disadvantages: The helical gear efficiency is lower due to the contact between its teeth, which produces axial thrust and generates heat.

Applications: 1.It consists of transmission components, automobile, speed reducers, etc.

Advantages: 1.More effective in reducing noise and vibration when compared with a spur gear.

Features: 1.Gears in cross section produce push powers in the axial direction. 2.Has higher strength compared with a spur gear

BEVEL GEARS

Disadvantages: 1.Involves some technical difficulties in manufacturing

Applications: 1. It consists machine tools, printing presses,Automobiles, tractors, vehicles and so on.

Advantages: It have a advantage of increasing the speed of rotation of the chuck and this makes it possible to drill a range of materials.

Features 1.Provides reduction ratios up to approx. 1:5 2.Has better proficiency of transmission with diminished gear noise

SPUR GEARS

Disadvanatges: 1. they will produce vibration;

Applications: 1.Transmission components

Advantages: 1. It is easy to manufacture

Features: 1.Spur gears are a sort of tube shaped stuff. 2.There are no axial force in spur gears