Which of the following bearings is suitable for high speeds?

Concept:

Bearing: It is a mechanical element that permits relative motion between two parts with minimum friction.

Functions of bearing:

• Free rotation of shaft with minimum friction.
• Supports shaft and holds in correct position.
• Bears force that acts on the shaft and transmits to the foundation.

Bearings are classified into two types :

1. Sliding contact bearing 
2. Rolling contact bearing.

Sliding contact bearing it is classified as 

• Thick film lubrication
• Thin film (zero films) lubrication bearing.

Roller contact bearings

Roller contact bearings are the bearings that use spherical balls, or some other type of roller between the stationary and the moving elements. 

These bearings are also called anti-friction bearing.

Roller contact bearings are classified into two types:

• Ball Bearings are used to take heavy as well as high-speed loads. It is classified into the following types.
  • Deep groove ball bearing
  • Angular ball bearing
  • Self align ball bearing
  • Thrust ball bearing
• Roller Bearing
  • Cylindrical Roller Bearing
  • Taper Roller Bearing
  • Spherical Roller Bearing
  • Needle Roller Bearing