BMW 33416762317 Angular Contact Ball Bearing,Radial

For the front wheels which can be either loose or spinning smoothly, all-wheel and four-wheel drive car models need lug nuts and axle nuts s torqued to the right level and checked for looseness while worn or damaged wheel bearings are required to be replaced. Same with FWD cars; the torque and recheck of the joint is done as well as checking the wheel bearing and adjusting it if necessary; if the bearing stays loose, it is replaced. In the case of rear-wheel drive vehicles, it is recommended that the bearing should be pre-loaded if it is out of specification, and the lug nuts should be torqued also; worn or damaged bearings should be replaced. Again for all-wheel and four-wheel drive vehicles that present with a problem regarding the rear wheels or wheel bearings, the lug nuts and axle nuts must also be tightened then checked for looseness, and the worn or damaged wheel bearings should also be replaced. If the wheel bearing of an FWD vehicle is worn or out of specification in any way, it should be corrected to achieve the specification, this should then be followed by torqueing of the lugs after which the wheel bearing should be replaced if worn or damaged. In case of routine inspection of RWD vehicles, lug nuts should be tightened to the recommended torque level and examined for looseness; used or damaged wheel bearings require replacement.

To begin, remove the rear hub and then take out the hub bearing retaining snap-ring from the trailing arm. Use a hammer and a suitable punch to tap the hub bearing out from the trailing arm. Clean the trailing arm bore thoroughly, eliminating all dirt and grease, and polish away any burrs or raised edges that could obstruct reassembly; replace the snap-ring if its condition is questionable. During reassembly, apply a light film of clean engine oil to the bearing outer race to facilitate installation. Align the bearing in the trailing arm and tap it fully into position, ensuring it enters squarely with the aid of a suitable tubular spacer that only contacts the bearing's outer race. Secure the bearing in place with the snap-ring, ensuring it is fully seated in the trailing arm groove, and finally, install the rear hub.

Remove the rear hub. Remove the hub bearing retaining snap ring from the trailing arm. Tap the hub bearing out from the hub carrier using a hammer and suitable punch. Thoroughly clean the hub carrier bore, removing all traces of dirt and grease, and polish away any burrs or raised edges which might hinder reassembly. Replace the snap-ring if there is any doubt about its condition. On reassembly, apply a light film of clean engine oil to the bearing outer race to aid installation. Place the bearing in the hub carrier and tap it fully into position, ensuring that it enters the carrier squarely, using a suitable tubular spacer which bears only on the bearing outer race. Secure the bearing in position with the snap-ring, making sure it is correctly positioned in the hub carrier groove. Install the rear hub.

Remove the rear hub. Remove the hub bearing retaining snap ring from the trailing arm. Tap the hub bearing out from the hub carrier using a hammer and suitable punch. Thoroughly clean the hub carrier bore, removing all traces of dirt and grease, and polish away any burrs or raised edges which might hinder reassembly. Replace the snap-ring if there is any doubt about its condition. On reassembly, apply a light film of clean engine oil to the bearing outer race to aid installation. Place the bearing in the hub carrier and tap it fully into position, ensuring that it enters the carrier squarely, using a suitable tubular spacer which bears only on the bearing outer race. Secure the bearing in position with the snap-ring, making sure it is correctly positioned in the hub carrier groove. Install the rear hub.

The rear hub is press-fit into the rear wheel bearing, which in turn is press-fit into the trailing arm. When replacing the rear hub, the rear wheel bearing must also be replaced since removing the hub destroys the bearing. If only the wheel bearing needs replacement, the hub can be reused unless damaged or bent. Specialized tools are essential for removal and installation since the bearing and hub are press-fit. Some tools allow hub and bearing removal and replacement without taking out the trailing arm; when using these, always follow the tool manufacturer's instructions. If using a hydraulic press, the trailing arm must be removed, and on E36 models, this necessitates an alignment check due to changes in toe alignment. The rear wheel bearings, being press-fit, cannot be serviced without damage. If they are noisy or loose, they must be replaced. Disconnect the negative battery cable, raise the vehicle, remove the wheel center cap, loosen the rear axle nut, take off the wheel assembly, and remove the halfshaft assembly. Then, remove the brake caliper and bracket assembly, ensuring no tension on the brake hose. If possible, use a slide hammer tool with a stub axle puller adapter to remove the stub axle from the trailing arm, followed by the large snapring. Next, remove the rear parking brake shoes, springs, and adjusters and the rear trailing arm. Use a hydraulic press to push out the stub axle and the bearing. If the inner bearing race remains on the stub axle, use a puller or chisel to remove it. Clean the stub axle, removing any burrs. For installation, consider freezing the bearing after placing it in a plastic bag and lightly lubricating it to ease the process. Check the trailing arm for damage, clean the area where the bearing goes, ensuring no sharp edges. Using a press, install the bearing into the trailing arm, followed by the snapring. Install any necessary dust shields, support the inner bearing race, and press the stub axle into the race. Reattach the trailing arm, ensuring alignment marks on E36 models. The remaining assembly is the reverse of removal, using a new axle nut and ensuring all fasteners are tightened. Finally, check and adjust the rear wheel alignment if needed.