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Design 5 - Rolling contact bearing (Type 4 - Selection of bearing for given life given subjected to varying load and speed)
written 5.4 years ago by gravatar for yashbeer yashbeer ★ 11k
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written 5.4 years ago by gravatar for yashbeer yashbeer ★ 11k

A ball bearing mounted on a 90mm shaft operates on the following work cycle.

PHASE RADIAL LOAD (Fr) N (rpm) Time (sec)
1 3 720 3
2 7 1440 4
3 5 900 3

If the expected life of bearing is 10000 Hrs with a reliability of 93%, Select a suitable bearing subjected to minor shock with no impact.

Given Data

Type of Bearing- Ball Bearing.

Shaft diameter- 90mm

Expected Life- 10000Hrs.

Probability of Survival – 93%

Solution

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