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J H C B C Wheel Bearings. J H C B C Bearing uses B Pivots B Wheels B Rotating shafts B Oscillating shafts B Sliding shafts.

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Presentation on theme: "J H C B C Wheel Bearings. J H C B C Bearing uses B Pivots B Wheels B Rotating shafts B Oscillating shafts B Sliding shafts."— Presentation transcript:

1 J H C B C Wheel Bearings

2 J H C B C Bearing uses B Pivots B Wheels B Rotating shafts B Oscillating shafts B Sliding shafts

3 J H C B C BEARING LOAD B RADIAL LOAD - When bearing load is applied in a vertical direction. B THRUST LOAD - When bearing load is applied in a horizontal direction B ANGULAR LOAD - When bearing load is applied in between vertical and horizontal

4 J H C B C Axial or thrust load Radial Load Angular Load

5 J H C B C Radial load

6 J H C B C Angular load

7 J H C B C BEARING TERMINOLOGY B INNER RACE B SEPARATOR OR CAGE B ROLLING ELEMENTS BALLS BALLS ROLLERS ROLLERS B OUTER RACE OR CUP

8 J H C B C BEARING TYPES B CYLINDRICAL BALL BEARING B CYLINDRICAL ROLLER BEARING B TAPERED ROLLER BEARING B NEEDLE ROLLER BEARING

9 J H C B C Cylindrical Ball bearings B Radial loads only.. B Can be double rows of ball bearings.. B Installing bearing.. Press the outer race in a housing.. Press the outer race in a housing.. Press the inner race on a shaft.. Press the inner race on a shaft..

10 J H C B C HEAVY LOAD

11 J H C B C Can be double rows of ball bearings B For heavy thrust loads B Can with stand thrust loads B Can handle some axial loads

12 J H C B C B Some FWD use a double tapered bearing. B Designed to handle radial and thrust loads. B Usually not serviceable

13 J H C B C FRONT WHEEL DRIVE

14 J H C B C Cylindrical Roller Bearings B Designed for Radial load B Can withstand some thrust load

15 J H C B C Tapered roller bearings Excellent capability to handle : Radial Loads Thrust Loads Angular Loads

16 J H C B C NEEDLE ROLLER BEARING B Is very compact B Small steel rollers B Thin outer race B Used in steering gears and alternators B Rollers push against each other B For Radial Loads

17 J H C B C TYPICAL DISC BRAKE BEARING ASSEMBLY

18 J H C B C Bearing Diagnosis B Normal bearing life B Bearing failure

19 J H C B C BEARING FAILURES B BENT CAGE B ETCHING B BRINELLING B ABRASIVE ROLLER WATER B GALLING SERVICE AND SYSTEMS LAB MANUAL PAGE 284, FIG 9-54 MUST REPLACE RACE AND BEARING AS A SET!!!

20 J H C B C BEARING SERVICE B Should use brass drift punch (286L) B Should use bearing driver whenever possible (286C & 291L) B Clean bearing and race B Pack new grease in bearing (289C) B Use high temp grease on disc brake equipped car. (265L)

21 J H C B C Adjustment PAGE 291L

22 J H C B C Springless seal

23 J H C B C Double lip seal

24 J H C B C Spring loaded Seal

25 J H C B C Seal Replacement B Different brands look different B What is important is: Match the OD Match the OD Match the ID Match the ID B Some brands have a steel lip and some do not. B (Caution) The steel housing is very thin on some

26 J H C B C Remember Not only does the seal need to look good now It need to be good enough for the next several thousand miles. Buying new seals are a cheap insurance


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