Bearings 1 Flashcards
Bearings are broadly grouped into 2 main categories
Plain and rolling element bearings
Another word for speed
Velocity (V)
What are the 3 types of motions?
Rotary(turning on a fixed point)
Linear( sliding along an axis)
Combined
A drill press is an example of what type of motion?
Axial(combined)
Load is also know by?
Pressure (P)
The formula to find the size and type of bearing?
P×V (pressure times velocity)
4 types of plain bearing lubrication
Boundary
Mixed film
Full-film
Hydrostatic
How deep do you machine the grooves in a plain bearing?
1/4 of the wall thickness of the bearing
Lubricant is an inherent component of this type of bearing.
Self lubricated plain bearings
This type of bearing is cost effective compared to most other forms of bearings
Plastic bearings
Plain bearings are inferior to rolling element bearings true or false?
False
The inner race of a plain bearing is?
The shaft it rides on
What is the outer race of a plain bearing?
The inner bore of the bearing
What are some of the advantages of non metallic plain bearings?
Shock and vibration resistance
Cost effective
Wide temperature range
What are some of the advantages of metallic plain bearings?
Higher load carrying capacity for the size.
Wide temperature range.
Cost to performance ratio
