Tuesday, April 23, 2019

Anti-Friction Bearing Classification and Identification (Milleright)

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The Function of any bearing is to support a moving part. Moving parts include rotating shafts and parts moving in straight lines, such as the carriage on a lathe moving along the ways. The bearing must provide this support and must also hold the part in proper alignment with other parts of the machine and do so with minimum friction.

In performing these functions, the bearing is subject to any of a number of different operating forces and speeds. Anti-Friction bearings of many different shapes and sizes have been designed to handle these forces and speeds. Due to the wide variety of bearing types, a code system had evolved to provide information on type, size and construction of each bearing. This allows you to select the correct type of bearing for a particular operating condition. The Standardized code that appears on any bearing provides you with information on the bearing type and size as well as all the features that make it suitable for a particular operating condition.

Objective one
1. Anti-Friction bearings
2. Bearing loads
3. Ball Bearings
4. Double row deep grove ball bearing (Type 4)
5. Self-Aligning  ball bearings
6. Single row angular contact ball bearing(Type 7)
7. Arrangements of single row angular contact bearings
8. Double row angular contact ball bearing (Type O)
9. Four-Point Angular contact ball bearing (Type QJ)
10. Ball thrust bearing (Type 5)
11. Roller Bearings
12. Cylindrical Roller Thrust bearing (Type 8)
13. Needle Bearings (code NA or NK)
14. Tapered Roller Bearings (Type 3)
15. Spherical Roller Bearing (Type 2)
16. CARB Bearings
Objective Two
1. ISO Identification of anti-friction bearings
2. ISO Bearing Type and Size
3. How to identify a bearing by Measurement
4. How to Get the Correct bearing for each of the operating conditions
Self-Test Answers

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