Worm gears have slightly angled and curved teeth, changing rotational movement by 90 degrees. They are used in speed reducers, machine tools, and portable generators, benefiting from quiet, smooth meshing but cannot drive a worm wheel unless specific conditions are met.
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
