Wheel Bearing Housing and Wheel Bearing Unit

Wheel Bearing Housing and Wheel Bearing Unit

Welding or straightening operations are not permitted on load-bearing or wheel-controlling components.

The wheel bearing must not be under a load while the drive axle threaded connection on the wheel side is loose.

If the bearings are loaded by the vehicle's own weight the wheel bearing will be damaged. This reduces the service life of the wheel bearings. Therefore observe the following:

• Loosening the drive axle threaded connection on the wheel side, refer to => [ Drive Axle Hex Bolt Connection, Loosening and Tightening ] Description and Operation.

• Refer to => [ Drive Axle Twelve-Point Bolt with Ribs, Loosening and Tightening ] Drive Axle Twelve-Point Bolt With Ribs, Loosening and Tightening.

• Refer to => [ Drive Axle Twelve-Point Bolt without Ribs, Loosening and Tightening ] Drive Axle Twelve-Point Bolt Without Ribs, Loosening and Tightening.

Vehicles without a drive axle must not be moved, otherwise the wheel bearing will be damaged. If vehicle does have to be moved, always note the following points:

- Install an outer joint in place of the drive axle.

- Tighten the outer joint to 120 Nm (twelve-point bolt) or 200 Nm (hex bolt).

• If the vehicle axle must still be aligned, every bolt and nut that must be loosened for adjustment is only tightened to tightening specification. Tighten the bolts and nuts to the specified additional tightening angle after the alignment/adjustment is complete.


All bolts and nuts must be tightened properly before driving the vehicle!