1. Angular Contact Ball
Bearings

2. Angular Contact Ball Bearings

3. Single Row Angular Contact Ball
Bearing Components

4. Influence of Contact Angles

5. Load Capability

6. Universal Arrangements for
Angular Contact Ball Bearings
Single Tandem Back-to-back Face-to-face

7. Variation in Contact Angle
Similar contact angles, Variation in contact angles,
inner and outer ring inner and outer ring

8. Bearing Preload
Life
Preload Clearance

9. Bearing Preload and Static Load
Deflection
A B
Bearing B Bearing A
Axial force, F
P'
δ δ
Axial deflection
δA δB
0 0

10. Bearing Preload, Spring Loaded
Spring loaded face-to-face arrangement Spring loaded back-to-back arrangement

11. Clearance and Preload Options
Table 1: Axial internal clearance of single row angular contact ball bearings of series 72 B(E) and 73 B(E)
when mounted in random pairs arranged back-to-back or face-to-face
Bore Axial internal clearance
diameter Class
d CA CB CC
over incl. min max min max min max
mm µm
– 10 4 12 14 22 22 30
10 18 5 13 15 23 24 32
18 30 7 15 18 26 32 40
30 50 9 17 22 30 40 48
50 80 11 23 26 38 48 60
80 120 14 26 32 44 55 67
120 180 17 29 35 47 62 74
180 250 21 37 45 61 74 90
250 315 26 42 52 68 90 106

12. Clearance and Preload Options
Table 2: Preload of single row angular contact ball bearings of series 72 B(E) and 73 B(E)
when mounted in random pairs arranged back-to-back or face-to-face
Bore Preload
diameter Class
d CA CB CC
over incl. min max max min max min max min max min max
mm µm N µm N µm N
10 18 +4 –4 80 –2 –10 30 330 –8 –16 230 660
18 30 +4 –4 120 –2 –10 40 480 –8 –16 340 970
30 50 +4 –4 160 –2 –10 60 630 –8 –16 450 1 280
50 80 +6 –6 380 –3 –15 140 1 500 –12 –24 1 080 3 050
80 120 +6 –6 410 –3 –15 150 1 600 –12 –24 1 150 3 250
120 180 +6 –6 540 –3 –15 200 2 150 –12 –24 1 500 4 300
180 250 +8 –8 940 –4 –20 330 3 700 –16 –32 2 650 7 500
250 315 +8 –8 1 080 –4 –20 380 4 250 –16 –32 3 000 8 600

13. Cage Types
BEP BEM
BEJ BEY

14. Application: Fan Shaft

15. Application: Tandem Arrangement
in a Piston Pump

16. PumPac™ Bearings
Thrust load
direction

17. PumPac™ Bearing Load Deflection
Bearing B Bearing A
Axial force, F

18. Double Row Angular Contact Ball
Bearings
32 A, 33 A 32 E, 33 E 52 A, 53 A, 54 A 52 E, 53 E

19. Seals, Shields and Snap Rings for
Double Row Angular Contact Ball
Bearings

20. Application: Process Pump

21. Non Driven Motor Car Wheel Bearing

22. Four Point Contact Ball Bearings
(QJ bearings)

23. Application: Screw Compressor

24. Check Machine Drawings and Fits

25. Preparations for Efficient Dismounting

26. Press

27. Using Bearing Pullers
External Internal Blind
Spread Reach Withdrawal
force

28. Pulling on the Inner Ring

29. Pulling on the Outer Ring

30. Before Fitting Bearings

31. Cold Bearing Fitting

32. Press Fitting

33. Principle of Induction Heating

34. Induction Heater Range
A = TMBH 1 B = TIH 025/TIH 030 C = TIH 060 D = TIH 120

35. Lubrication of Angular Contact Ball
Bearings
Oil bath lubrication
Bearing
housing
Constant
level oiler
Required
operating
level
Oil-rim
level

36. Oil Mist and Angular Contact Ball
Bearings
Oil-ring lubrication Oil mist lubrication