Faults of wheel bearing

• destruction of the outer ring;
• overheating or corrosion of the part;
• offset / tilting;
• excessively tight fit;
• occurrence of dents;
• presence of burrs.

Symptoms of wheel bearing failure

• increasing vibration and shock during movement;
• vehicle side pull;
• body roll during sharp turns or braking;
• strange sounds;
• vibration in the steering system;
• excessive heating of the wheel disc;
• increased and uneven tire wear.

Causes of wheel bearing faults

• excessive mechanical load;
• increased or decreased clearance in the bearing;
• deformation of the rings and the friction bodies;
• contamination of the part;
• use of low quality lubricant;
• uneven load vectors;
• operating conditions.

Diagnostics

Diagnosing wheel hubs is recommended at each brake pad change, regardless of the car mileage. There are several options for checking the part. At a speed of 10-15 kilometers per hour take a sharp turn to the left. If at this maneuver strange sound disappears, the problem is in the left wheel hub bearing. And accordingly, vice versa. For a more accurate diagnosis you need a lift or a jack. The car must be mounted, you need to start the engine and accelerate the car at fourth gear to a speed of 80 kilometers per hour. Then depress the clutch, turn off transmission and listen to determine which of the wheels is the source of strange sounds. One more effective method of diagnosis is to shake the mounted car wheel first vertically and then horizontally. Finding even a slight play, you will know that the problem is in the bearing or the steering system. The next step is to ask an assistant to press the brake pedal to the maximum, and at the same time swing the wheel vertically. If the gap disappears, you need to replace the bearing.

Repair and replacement of wheel bearing

Repair of bearings is produced extremely rarely. The optimal solution is a replacement. It is carried out every 130 000-190 000 km. In replacement operation, it is important to:

• set the gap at installation of a tapered roller bearing;
• not use sharp objects that may damage the structure;
• setting on axle, work with the driftpin on the inner ring;
• pressing the bearing in the hole, transmit the force through the driftpin to the outer ring.

Wheel bearing replacement - instructions, descriptions and repair

Hub bearing finder for

• FORD Fiesta Mk6 Hatchback (JA8, JR8)
• BMW 3 Saloon (E90)
• MERCEDES-BENZ C-Class Saloon (W204)
• FORD Focus II Hatchback (DA_, HCP, DP)
• NISSAN Qashqai / Qashqai +2 I (J10, NJ10)
• FORD Fiesta Mk5 Hatchback (JH1, JD1, JH3, JD3)
• VAUXHALL Corsa Mk III (D) Hatchback (S07)
• VW POLO (9N_)
• VW Golf V Hatchback (1K1)
• AUDI A3 Sportback (8PA)