Types of bearings

Friction bearings consist of a

• Fixed bearing surface

• Moving bearing surface

Anti-Friction bearings consist of a

• Fixed bearing surface

• Moving bearing surface

A layer of lubricants separates the two machine parts in

• Friction bearings

• Anti-friction bearings

Rolling elements separate the two machine parts in

• Friction bearings

• Anti-friction bearings

Manufacturing of anti-friction bearing is complex

• True

• False

Plain bearings are example of

• Friction bearings

• Anti-friction bearings

Roller bearings are example of

• Friction bearings

• Anti-friction bearings

A thrust bearing provides a bearing surface for forces acting

• Axial to the shaft

• Radial to the shaft

Double row roller bearings are more rigid than single row bearings

• True

• False

The contact angle in angular contact ball bearings varies from

• 15 to 40 degree

• 10 to 15 degree