Bearings

Question 1

What is the fuction of a raceway in a bearing?

Answer 1

Provide a smooth surface for the rolling elements to move on

Question 2

What is the angle of loaded zone on a roller thrust bearing?

Answer 2

360

Question 3

Which rolling element design allows for the greatest amount of shaft angularity?

Answer 3

Spherical

Question 4

What type of contact does a ball bearing have with the raceway?

Answer 4

Point contact

Question 5

What are the features/ elements of a ball bearing/conrad bearing

Answer 5

Outer ring
Raceways
Rolling elements
Cage
Inner ring

Question 6

What iso code represents an angular contact bearing?

Answer 6

7

Question 7

Which type of bearing only supports pure radial loads

Answer 7

Cylindrical roller bearings

Question 8

What feature is used with linear bearings to increase efficiency?

Answer 8

Recirculation of the ball/roller

Question 9

Which of the following have loading slots?

Answer 9

Maximum capacity ball bearings

Question 10

What’s the bore detention of a 6203 bearing

Answer 10

17mm

Question 11

Does a compact aligning roller bearing (carb) allow some axial movement?

Answer 11

Yes. Shaft will move with inner ring

Question 12

What’s another name for a cam follower linear bearing?

Answer 12

Track roller

Question 13

Why are rollers in a spherical roller bearing shaped like barrels

Answer 13

To allow angularity of the inner ring

Question 14

True or false. Four point angular contact bearings require less axial space than a pair of angular contact bearings

Answer 14

True

Question 15

What design makes radial needle bearings smaller radially?

Answer 15

No inner ring

Question 16

What type of linear bearings are made in modular lengths so it can be assembled to meet the requirements of the machine?

Answer 16

Caged needle bearings

Question 17

What’s the purpose of preloading two bearings?

Answer 17

To Prevent axial movement

Question 18

What two bearings can be used when preloading is required?

Answer 18

Tapered roller bearings
Angular contact bearings

Question 19

What bearing code can be used in a fixed floating bearing arrangement (floating pillow block)?

Answer 19

ISO code starting with N

Question 20

What type of lubrication film is formed to separate the rolling elements from the raceway in an anti friction bearing?

Answer 20

An elasto-hydrodynamic film

Question 21

What type of bearing lubrication method allows for cooling and filtering of the oil?

Answer 21

Circulated

Question 22

What is Brinelling?

Answer 22

It’s when hammer/shock loads dent the raceways of the bearings, typically oval shaped

Question 23

What is false brinelling?

Answer 23

Round depressions worn in raceways, caused by vibrations when shaft is not being turned