Wheel Bearing: Description and Operation

Wheel Bearing - Front

1. During use, a small amount of surplus grease may appear around the bearing seal, this does not indicate a failed bearing or seal. The grease should not be removed as this will act as an additional barrier to the ingress of water or foreign matter.
Excessive end float or bearing rumble will indicate a failed bearing; for maximum permissible end float see specifications. Take care not to confuse suspension ball joint or upper or lower fulcrum bush movement for bearing end float.
If the hub is removed for any reason, a new bearing assembly must be installed. Never attempt to re-use a bearing.

Wheel Bearing Circlips





2. When installing the bearing circlips in the vertical link ensure that the ears are located at the lowest position to permit water drainage.
To achieve this, a perpendicular line drawn through the suspension upper ball-joint will indicate the position of the gap between the circlip ears. This procedure makes an allowance for the caster angle prior to installing the vertical link.