Bearings Flashcards
Many factors affect the bearings ability to carry a load such as….
Area of contact
direction of load
loaded zone
Three directions of bearing load
Radial load
axial load
combination load
Some types of bearings are more suited for high speeds and lighter loads, while others are more suitable for what…..
Heavier loads and lower speeds
What is the most common ball bearing and what is its nickname
Single row deep groove ball bearing commonly called a Conrad bearing
What is the difference between a maximum capacity deep groove ball bearing and a single row deep groove ball bearing
The maximum capacity deep groove has more balls to take heavier loads radially
Double row deep groove ball bearing can take higher loads where…
Radially
internally self aligning ball bearing is good for what purpose
To align a shaft that must operate at high speeds with extreme accuracy
The spherical seat on the outside of the outer ring on an externally self aligning ball bearing allows for what
Misalignment
Which bearing accommodates both radial and thrust loads
Single row angular contact ball bearing
What are the three arrangements for a single row angular contact ball bearing
Face-to-face
tandem
back to back
Face-to-face and back to back arrangements can handle reversing axial loads… What can the tandem arrangement handle
Tandem arrangement can only handle axial load in one direction
Is it true that the double row angular contact ball bearing can take heavier radial and axial loads in both directions
Yes
Why does a four point angular contact ball bearing have a split inner ring
To accommodate the assembly in some machines
What can the four-point angular contact ball bearing only be used for so the load does not run on the split
Combination or axial loads
The ball thrust bearing is designed for what load only
Thrust load
List four Roller bearing shapes
Cylindrical
needle
tapered
spherical
List the four types of roller bearings
Cylindrical
needle
tapered
spherical
The spherical shape has a larger load area of contact in a ball bearing of the same diameter which gives it a greater what….
Radial load capacity
Cylinder roller bearings handle a small amount of what……. because the raceway is slightly spherical
Misalignment
The inner ring of a single row tapered roller bearing is called what
The cone
The outer ring of a tapered roller bearing is called what
The cup
A 6201 bearing would have a bore of and why 5mm 10mm 12mm 17mm
12mm
because the last two digits are 01
What does the K mean in a bearing number
12 to 1 tapered bore
30 to 1 tapered bore
Shielded on both sides
A 12to1 tapered bore
And in properly placed ground while welding on equipment is likely to cause what bearing damage Contamination Corrosion Pitting Spalling
Pitting
What is the meaning of C3 in a bearing suffix
Tolerance smaller than normal
Clearance smaller than normal
Clearance greater than normal
Clearance greater than normal
Sealed bearing should never be heated above what temperature
175°F or 80°C
