Assembling the front wheel hub
1 - Steering knuckle; 2 - Bearing; 3 - Spring ring; 4 - Hub; 5 - Nut; 6 - Ball joint; 7 - Brake disc
Note: The double-row roller wheel bearing is a sealed design. The assembly is packed with grease and preload is set at the vehicle manufacturer's plant. The bearing is designed for the entire service life of the vehicle and does not require any additional maintenance. Try not to overtighten the hub nut - use a torque wrench.
To perform the procedures of disassembling and assembling the wheel bearing, you will need a suitable press, in the absence of which a large bench vice with a set of cylindrical mandrels will do (socket heads of the appropriate size are ideal for this purpose). The inner bearing races are press-fitted onto the hub. If the race remains on the hub when the bearing is removed, a special puller with blade-type grips will be needed to remove it.
1. Remove the hub assembly from the vehicle (see section Removal and installation front wheel hub assemblies).
[Text taken from this website: skodabook.ru]
2. Support the assembly securely on a couple of wooden blocks, or clamp it in a vice with soft jaws. Using a cylindrical mandrel resting only on the inner edge of the hub flange, press the bearing out of the hub. If the outer portion of the inner bearing race remains on the hub, use a bearing puller.
3. Remove the snap ring from the outer end of the hub assembly.
4. Firmly support the outer side of the hub assembly. Using a cylindrical drift resting only on the inner race of the bearing, press the bearing assembly out of the hub.
5. Thoroughly clean the hub assembly from dirt and grease. Use sandpaper to remove burrs and burrs that could interfere with the assembly of components. Check the components for cracks and other signs of wear. Replace defective parts.
6. To facilitate assembly of the components, lightly lubricate the outer bearing race and the hub flange journal with Optimol VP317 type oil.
7. Firmly support the hub and insert the bearing into it. Using a cylindrical mandrel that rests only on the outer race of the bearing, press the latter into the socket in the hub until it stops. Make sure that the bearing fits perpendicularly.
8. After installing the bearing in the hub, secure it with a retaining ring. Make sure the ring is seated correctly in its groove.
9. Firmly support the outer side of the hub assembly flange. Place the inner bearing race on the end of the flange. Using a cylindrical drift that rests only on the inner race, seat the bearing until it stops against the shoulders of the assembly. Check the freedom of rotation of the flange, remove excess oil/grease.
10. Install the hub assembly on the vehicle (see section Removal and installation front wheel hub assemblies).