Bearings Flashcards
1
Q
What is a bearing?
A
Supports a rotating shaft or axel
2
Q
Name the 3 types of bearings
A
Plain
Journal
Roller
3
Q
What is a plain bearing?
Name it’s properties
A
Made from brass/nylon
Self lubricating
Cheap
Hold a high load
4
Q
What is a journal bearing?
Name it’s properties
A
Looks and acts as plain bearing
Oil lubricated
5
Q
What is a roller bearing?
Name it’s properties
A
Inner race spin independently from outer race
Needs to be hard so can support large load
High cost
6
Q
When is a plain bearing used?
A
Low revolution
High load
7
Q
When is a journal bearing used?
A
Low revolution
Key use where there can be no wear
8
Q
When is a roller bearing used?
A
Low load
High revolution
