Wheel Bearing Housing, Servicing

Wheel Bearing Housing, Servicing






1. Wheel bearing housing
Note different versions of suspension, refer to parts supplier.
Removing and installing Wheel Bearing Housing, Removing and Installing
2. Wheel bearing
Shoulder on inner diameter
Installation position: side of wheel bearing with larger inner diameter faces wheel hub
Removing bearing inner race from hub refer to Fig. 5 and Fig. 6
With 75 mm diameter wheel bearing housing:
Pressing bearing out refer to Fig. 3
Pressing bearing in refer to Fig. 7
With 82 or 85 mm diameter wheel bearing housing:
Pressing bearing out refer to Fig. 4
Pressing bearing in refer to Fig. 8

3. Wheel hub
Shouldered With 75 mm diameter wheel bearing housing:
Pressing hub out refer to Fig. 1
Pressing hub in refer to Fig. 9
With 82 or 85 mm diameter wheel bearing housing:
Pressing hub out refer to Fig. 2
Pressing hub in refer to Fig. 10

4. Bolt 10 Nm (7 ft lbs)
5. Brake splash guard

6. ABS wheel speed sensor
Pull out to remove
Install drive axle before installing speed sensor
Press into clamping sleeve up to stop
Routing wiring,

7. Clamping sleeve
Always replace
Left and right sides identical
Before installing, lubricate hole in wheel bearing housing with brake cylinder paste
Press into wheel bearing housing up to stop

Special tools, test equipment and auxiliary items






Fig. 1 Pressing wheel hub out of 75 mm diameter wheel bearing housing






Fig. 2 Pressing wheel hub out of 85 mm diameter wheel bearing housing






Fig. 3 Pressing wheel bearing out of 75 mm diameter wheel bearing housing






Fig. 4 Pressing wheel bearing out of 85 mm diameter wheel bearing housing






Fig. 5 Installing separating device






- Install separating device into bearing inner race circumferential groove (left arrow) and tighten spindle (right arrow).

Note: Use a standard, commercially available bearing separator (i.e. Kukko 15-17).

Fig. 6 Pressing inner bearing race off of wheel hub






Fig. 7 Pressing wheel bearing into 75 mm diameter wheel bearing housing






Note: Large inner diameter of wheel bearing faces toward wheel hub.

Fig. 8 Pressing wheel bearing into 85 mm diameter wheel bearing housing






Note: Large inner diameter of wheel bearing faces toward wheel hub.

Fig. 9 Pressing wheel hub into 75 mm diameter wheel bearing






CAUTION:
When installing) VW519 sleeve must exert force only against the bearing inner race.
Make sure that the wheel bearing housing does not exert farce against the wheel hub. Otherwise there is the risk of damaging the wheel bearing.
The wheel bearing housing must remain as horizontal as possible when pressing in the hub. Otherwise the wheel hub will cant in the wheel bearing, which will lead to early wheel bearing damage.

Fig. 10 Pressing wheel hub into 85 mm wheel bearing






CAUTION:
When installing, VW447i thrust pad must only exert force only against the bearing inner race.
Make sure that the wheel bearing housing does not exert force against the wheel hub. Otherwise there is the risk of damaging the wheel bearing.
The wheel bearing housing must remain as horizontal as possible when pressing in the hub. Otherwise the wheel hub will cant in the wheel bearing, which will lead to early wheel bearing damage.