What happens if I over tighten my wheel bearing?

“Excessive preload will cause excessive friction and the bearing will run hot, compromising lubrication and eventually leading to flaking (material coming off) at the large end of the rollers/races,” he says. “On the other hand, adjusting the bearing too loose causes excessive looseness and vibration in the system.

What should the torque be on wheel bearings?

A typical final torque of 20-30 in.-lbs will leave zero end play and a slight amount of preload on the wheel bearing assembly. Whether you’re installing a ball, roller or sealed bearing assembly, using correct procedures and tools will ensure a comeback-free wheel bearing installation.

How much torque does a front wheel wheel have?

Tapered roller bearings on the front of RWD vehicles are never preloaded. They’re snugged up with no more than 15 to 20 ft.-lbs. of torque while rotating the wheel to make sure the bearings are seated. Then the adjustment nut is loosened 1/6 to 1/4 a turn and locked in place with a new cotter pin.

Do you have to adjust rear wheel bearings?

However, driven front wheels and driven rear wheels on cars with independent suspension generally have their hub nuts tightened to a high torque setting, and quite often no routine servicing adjustment is specified. Where adjustment to these driven wheels is possible, the method varies. The rear-wheel bearings of live axles are not adjustable.

What should the wheel bearing end play be?

The goal of this recommended procedure is to achieve a verifiable wheel bearing end play of 0.001” to 0.005” (.025 mm to .127 mm). This procedure applies to steer, drive and trailer axle assemblies using conventional double nut or single nut systems on Class 6, 7 and 8 trucks. This refers only to torque specifications and bearing adjustment.

How do you adjust the torque of a wheel?

Bearing Lubrication: Lubricate the wheel bearing with clean lubricant of the same type used in the axle sump or hub assembly. STEP 2. Initial Adjusting Nut Torque: Tighten the adjusting nut to a torque of 200 ft-lbs, while rotating the wheel. STEP 3. Initial Back Off: Back the adjusting nut off one full turn. STEP 4. Final Adjusting Nut Torque:

When to use pre adjusted wheel bearing adjustment?

Pre-AdjustedWheel Bearing Adjustment Procedures The goal of this recommended procedure is to achieve a verifiable wheel bearing end play of 0.001” to 0.005” (.025 mm to .127 mm). This procedure applies to steer, drive and trailer axle assemblies using conventional double nut or single nut systems on Class 6, 7 and 8 trucks.

What’s the torque of a t axle nut?

Tighten the adjusting nut to a torque of 200 ft-lbs, while rotating the wheel. STEP 3. Initial Back Off: Back the adjusting nut off one full turn. STEP 4. Final Adjusting Nut Torque: Tighten the adjusting nut to a final torque of 50 ft-lbs while rotating the wheel. T AXLE NUT TORQUE TYPE SIZE SPECIFICATIONS

What happens if I over tighten my wheel bearing?