Wheel Bearing Unit, Servicing

Special tools and workshop equipment required 

• Press Plate: VW401 
• Press Plate: VW402 
• Press Piece - Multiple Use: VW412 
• Hydraulic Press - Bushing Assembly Tool Kit : T10230 
• Pneumatic Hydraulic Press: VAS6654 
• Bearing Puller Set: VAS701003 

The wheel bearing and wheel hub are currently only delivered together. As soon as these components are delivered separately, the following instructions will apply.

Procedure 

• Wheel bearing unit is removed. Refer to WHEEL BEARING UNIT, REMOVING AND INSTALLING .

Wheel Hub, Removing from Wheel Bearing 

• Handling the wheel bearing. Refer to Figure.

-- Lay out the special tools as shown.

1. : VW412 
2. : T10230/3 
3. : T10230/8 
4. Wheel Bearing Unit
5. : VW402 
6. : VW401 

-- Press the wheel hub out of the wheel bearing.

Bearing Inner Race, Removing from Wheel Hub 

-- Prepare the puller from the : VAS701003  as follows.

-- Install the : VAS701003/1  on the : VAS701003/7  .

-- Install the : VAS701003/2  in the adapter sleeve and attach the : VAS701003/3  .

Bearing Inner Race, Version 1 

-- Remove the ball-cage assembly from the bearing inner race -2-.

-- Place the puller -1- as shown on the ball bearing race -arrow- of the bearing inner race.

Bearing Inner Race, Version 2 

-- Place the puller -1- on the groove -arrow- of the bearing inner race -2-.

Continuation for All Versions 

-- Clamp the puller on the bearing inner race -2- by turning the : VAS701003/7  with the : VAS701003/5  in the direction of -arrow- and counterhold the : VAS701003/1  with the : VAS701003/4  .

-- Remove the bearing inner race with the : VAS701003/2  from the wheel hub -1-.

Wheel Hub, Pressing in Wheel Bearing 

• Handling the wheel bearing. Refer to Figure.

-- Lay out the special tools as shown.

1. : VW412 
2. : VW402 
3. Wheel Hub
4. Wheel Bearing
5. : VW401 

• The reworked surface of the wheel bearing outer race faces down.

-- Press the wheel hub into the wheel bearing.