25

Question 1

To determine running clearance use a ___ ___.

Answer 1

Feeler gauge

Question 2

When cleaning a shell remove moisture by ___.

Answer 2

Preheating

Question 3

Coat a mandrel with ___ ___ to prevent babbitt from clinging.

Answer 3

White lead

Question 4

Rings or grooves in a bearing serve what purpose?

Answer 4

Circulate lubricant

Question 5

Screeching bearings usually indicate what?

Answer 5

Clearances are too tight

Question 6

Typically you dont need to clean a bearing except when?

Answer 6

When an automatic oil-mist system will lubricate the bearing

Question 7

What happens when the shoulder is too low?

Answer 7

Bearings inner ring may distort

Question 8

When performing a blueing clearance inspection what percentage contact is acceptable?

Answer 8

80%

Question 9

Before employing a cold press or impact technique what should you do?

Answer 9

Make sure to lubricate the bearing bore and shaft with a light oil

Question 10

Do not use a ___-___ ___ to install a bearing.

Answer 10

Gas-operated torch

Question 11

What are the two ways to remove antifriction bearings?

Answer 11

Impact and heat

Question 12

The correct puller for the job depends on its ___ and spread.

Answer 12

Reach

Question 13

A ___ is used in conjunction with a splitter.

Answer 13

Puller

Question 14

Do not use ___ to clean bearings.

Answer 14

Steam

Question 15

Remove bearing 4in. in diameter or smaller using an ___ ___.

Answer 15

Arbor press

Question 16

A special type of pillowblock used for conveyors is called a ___.

Answer 16

Takeup

Question 17

When the grub screw holding method is used set screws but ___ ___ are used.

Answer 17

No collar

Question 18

Bearing ___ ___ list the correct amount of takeout for various bearing sizes.

Answer 18

Manufacturers charts

Question 19

The lubricant used in a labyrinth seal is ___.

Answer 19

Grease

Question 20

Temperature measured at the bearing is from ___° to ___° higher than the temp at the housing.

Answer 20

15° to 25°

Question 21

The rolling contact of a ball bearing screw makes it ___% efficient.

Answer 21

90%

Question 22

Ball bearing screw loads ride on machined surfaces called ___.

Answer 22

Ways

Question 23

To expand a bearings inner ring utilize a ___ ___ ___

Answer 23

Hot oil bath

Question 24

A ___ ___ is used where water, dirt, dust, coal, ore, or mud are present close to the machinery.

Answer 24

V-ring seal

Question 25

___ seals stand up well in cold environments.

Answer 25

Silicone