anti friction part b

Question 1

What is internal clearance?

Answer 1

The internal clearance in a bearing is the total amount of clearance between the rolling elements and the raceway

Question 2

Never heat a bearing over
and never heat a sealed bearing above ?

Answer 2

120C(248F)

80 degrees C (175 degrees F (sealed)

Question 3

What is Residual clearance?

Answer 3

internal clearance (radial or axial) in a bearing after its been mounted

Question 4

When hot, mounting bearings heat the bearing to what temperature

Answer 4

heat the housing to about 80 C.

Question 5

What is run in clearance?

Answer 5

radial or axial clearance in a bearing after its been running at operating temp

Question 5

Pre-load is not clearance true or false

Answer 5

true- It is the load the rolling elements are under before any external load is applied. (axial load).

Question 6

When is pre-load applied

Answer 6

When the operating load is too light to make the rolling elements roll properly