Bearings Flashcards
1
Q
Definition of a bearing
A
to allow smooth, low friction motion between two surfaces
2
Q
what do bearings do? (3)
A
- support two rotating shafts
- convert sliding friction to rotatory friction
- act as a guide
3
Q
Types of bearings - rolling element (2)
A
- plain
- roller
4
Q
Types of lubrication for bearings (4)
A
- boundary
- mixed film
- full film
- hydrostatic
5
Q
Parts of a rolling bearing
A
- Inner raceway
- Outer Raceway
- rolling element
- cage
- seal
6
Q
Types of Rolling Bearings
A
- ball bearing
- cylindrical bearing
- spherical
7
Q
types of ball bearings (4)
A
- radial
- axial (angular)
- deep grove
- thrust
8
Q
types of cylindrical bearings (3)
A
- radial
- tapered
- needle
9
Q
ball bearing has ____ _____ __ ______ between balls and raceways
A
smaller area of contact
10
Q
ball bearing has _____ & ____ than roller bearing
A
- lower load capacity
- higher speed
11
Q
Ball bearings support which types of loads
A
radial and axial
12
Q
angular contact bearing are better for …
A
supporting combined loads
13
Q
single row ball bearings (2)
A
- high thrust loads
- moderate radial loads
14
Q
double-row ball bearings (3)
A
- higher radial loads
- higher thrust loads
- thrust load in both directions
15
Q
difference between radial bearings and thrust bearings?
A
- radial bearings have inner and outer race
- thrust bearings have no inner and outer races
