Tpc 343

Question 1

What is the best way to determine the correct running clearance when installing a bearing?

Answer 1

To use established charts and tables that exist for this purpose

Question 2

The materials ability to dissipate any excessive heat generated during operation is called?

Answer 2

Thermal conductivity

Question 3

The purging action of the newly applied grease tends to flush out?

Answer 3

Old lubricants from the bearing surfaces

Question 4

What are signs of discoloration?

Answer 4

Look for signs of high, localized heat. Excessive wiping of the liner material

Question 5

What can you coat the mandrel with to prevent the babbit from clinging

Answer 5

White lead

Question 6

What does screeching indicate?

Answer 6

This usually signals that clearances are too tight or that lubrication is inadequate

Question 7

When you must leave the job for a short time or overnight, make sure you cover the bearing with?

Answer 7

Grease proof paper

Question 8

The bearing is driven up the taper by tightening a?

Answer 8

Heavy duty nut

Question 9

When using blue transfer gauge how much contact is considered satisfactory?

Answer 9

Eighty percent

Question 10

When cold mounting before employing either the arbor press or impact technique make sure to lubricate the bearing bore and the shaft with?

Answer 10

A light oil

Question 11

What should you use to loosen a locknut?

Answer 11

A spanner wrench

Question 12

To use the heating ring, heat the bearing to approximately?

Answer 12

500 degrees Fahrenheit

Question 13

If newly cleaned and inspected bearings are not to be reinstalled and lubricated immediately, they must be protected, press good, clean…

Answer 13

Bearing grease into the rollers

Question 14

How can you remove bearings

Answer 14

By impact or heating

Question 15

What is one way to remove bearings that are approximately 4in. In diameter or smaller?

Answer 15

Using the arbor press

Question 16

To remove a bearing a splitter may be used with a?

Answer 16

Mechanical puller

Question 17

What seal is used in applications where dirt, water, or other contaminants are present in the area

Answer 17

The contact seal

Question 18

What bearing allows for some misalignment?

Answer 18

Spherical roller bearings

Question 19

What is the allowable tolerance for shafts 2 to 4 in. In diameter?

Answer 19

.001

Question 20

Where can you find a bearings final clearance?

Answer 20

Bearing manufacturers provide charts listing the correct amount of takeout

Question 21

What loads can ball bearing screws support?

Answer 21

Vertical and horizontal loads

Question 22

Standard ball bearings support the?

Answer 22

Screw

Question 23

How efficient is the rolling contact action of the ball bearing screw?

Answer 23

Ninety percent of

Question 24

What seal is effective in rotating shaft applications where such contaminants as water, dust, dirt, coal, ore, and mud are present in great quantities and close to the machinery?

Answer 24

A V-ring seal

Question 25

What seals can be used for extreme cold temperatures?

Answer 25

Seals made of silicone