MCQs of Rolling Contact Bearings (Machine Design - 2171909)

Showing 1 to 10 out of 64 Questions

Which of the following is an antifriction bearing?

The rolling contact bearings are known as

The ball bearings are provided with a cage

(a)	to reduce friction
(b)	to facilitate slipping of balls
(c)	to prevent the lubricant from flowing out
(d)	to maintain the balls at a fixed distance apart

The rolling contact bearings as compared to sliding contact bearings have

(a)	small overall dimensions
(b)	accuracy of shaft alignment
(c)	low starting and low running friction except at very high speeds
(d)	all the mentioned

If a bearing is designated by the number 305, it means that the bearing is of

(a)	light series whose bore is 5 mm
(b)	light series whose bore is 25 mm
(c)	medium series whose bore is 5 mm
(d)	medium series whose bore is 25 mm

The antifriction bearings

(a)	have low starting and low running friction at moderate speeds
(b)	have a high initial cost
(c)	can carry both radial and thrust loads
(d)	all the mentioned

Which of the following bearing is preferred for oscillating conditions?

(a)	Double row roller bearing
(b)	Taper roller bearing
(c)	Needle roller bearing
(d)	Angular contact single row ball bearing

The tapered roller bearings can take

The listed life of a rolling bearing, in a catalog is the,

10.

Antifriction bearings are

Showing 1 to 10 out of 64 Questions