Anti Fricition Bearings

Question 1

List three states of Lubrication

Answer 1

Boundary, Partial, Full

Question 2

How could you visually identify a maximum capacity ball bearing?

Answer 2

It has more balls and has load slots machined into the inner and outter race way

Question 3

list five reasons correct fit is important when mounting anti friction bearings

Answer 3

Correct fit ensures that -

rings do not spin in their seat
skidding is minimized
cracking from hoop stress
rolling elements do not bind between ring
Required axial clearance or pre load is present

Question 4

what is internal clearance in a spherical roller bearing called prior to installation?

Answer 4

Initial Clearance

Question 5

A single row angular contact bearing can handle heavy thrust loads in both directions in combination and moderate radial loads? T/F

Answer 5

True

Question 6

A double row deep groove ball bearing can handle substantial radial and thrust loads? T/F

Answer 6

False

Question 7

what function do shields perform in antri friction bearings?

Answer 7

They exclude coarse contaminants only,

Advantage is that they do not restrict running speed

Question 8

What Identifier on the bearing designation signifies it has a taper bore?

Answer 8

Capital “K”

Question 9

What type of bearing is a #6xxxx bearing?

Answer 9

single row deep groove ball bearing

Question 10

What type of bearing is a #7xxxx bearing?

Answer 10

single row angular contact ball bearing

Question 11

What type of bearing is a #5xxxx bearing?

Answer 11

Ball thrust bearing

Question 12

What type of bearing is a #Nxxxx bearing?

Answer 12

Single Row Cylindrical Roller Radial Load Bearing