M6.8 Flashcards
1
Q
Bearings function?
A
-to reduce friction between moving parts
2
Q
Bearings have 2 groups which are?
A
-Plain bearings
-roller bearings
3
Q
Plain bearings and roller bearings can be sub-divided into 2 categories ?
A
- ball bearings
- roller bearings
4
Q
What are axial/thrust loads?
A
-Movement on a axis
5
Q
What are radial/journal loads?
A
6
Q
What are synthetic bearings lubricated with?
A
Water
7
Q
What loads do plain bearings take?
A
- radial loads
8
Q
Plain bearings are used mainly in applications where ?
A
- carry radial loads
- loads are light
- motion is relatively continuous
9
Q
Why are anti-friction bearings better than plain bearings?
A
- eliminates friction
- carry heavy loads
- run smoother
10
Q
What are the 5 types of anti-friction bearings?
A
-tapered
-Needle
-Ball
-Spherical
-Cylindrical
11
Q
What are the major components of a ball bearing?
A
- outer ring/race
- Inner ring/race
- Rolling elements (balls in this case)
- Retainer
12
Q
Why are air bearings better?
A
- zero friction load
- avoid lubricant problems
- avoid wear problems
