Bearings Flashcards
Why do we use bearings in machines?
Allows rotation while supporting the shaft
What effect does friction have on movement?
Creates resistance to motion
How could you check clearance on a plain split bearing?
Use a dial indicator or last word indicator on the end of the shaft
What is the perfect tool to use when taking a worn bearing off a shaft?
A bearing puller
What is typical cause of Spalling?
 Fatigue
What should the oil level be on the anti-friction bearing running in an oil bath?
The oil should be third to halfway up the lowest rolling element
When installing a bearing on a shaft, what is a common method used to make the process easier?
Call the shop and properly heat the bearing
What is the best lubricant to flush away contaminants
Oil
What is the highest temperature that a bearing shock seed for the longest duration?
120° to 250 Fahrenheit
What is the typical cause of false brinelling
Vibration
What does a high-pitched scream indicate about the bearing
The clearance is too small
What must you ensure when electric welding near bearing?
Current never flows through the bearing
Which bearing may have a straight tapered or spherical race
Roller bearing
What is meant by built-in contamination
Dirt that is in induced into a machine during assembly
Which way do we tighten an electronic, locking collar bearing
Same as rotation