The rear hub bearing for VAZ-2108: dimensions

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2020-01-09 15:00:16

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Wheel bearing provides a uniform rotation of the wheel around its own axis. Of all the chassis components of the car, he first meets and distributes the shock load, so the main requirements of this part – strength and durability.

In this article we'll talk about what constitutes a Rear hub bearing for VAZ-2108. We consider the design of this device, the dimensions, and also deal with the process of his replacement.

Bearing rear hub VAZ 2108

Design Features

Rear hub “eight” fitted with sealed ball journal and thrust bearings. Each of them has two rows of balls. This makes the design most resistant to loads, and also allows you to distribute them with the greatest efficiency.

Bearing rear hub VAZ 2108 made of heavy-duty steel. Life claimed by the manufacturer is 90-120 thousand kilometers. By the way, this is not an empty statement. Oddly enough, but the wheel bearings VAZ “go” for a really long time and with proper maintenance can serve twice longer than the stated mileage.

Main characteristics and types

Rear hub Bearing for VAZ-2108 is released under catalogue number 256706. It has the following technical characteristics:

  • Weight, g – 400;
  • The number of balls, pieces – 28;
  • Diameter of ball, mm – 9,525;
  • Static load rating, KN – 25,9;
  • Dynamic load ratings, KN – 30,1;
  • Rated speed, about./min. – 6500.

Bearing rear hub VAZ 2108

The Room bearing rear hub VAZ 2108 may be different. If the store will offer you the product with the labeling 537906 – don't be surprised. This is a bearing of high load capacity. Some of its characteristics differ from the characteristics established parts:

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  • Weight, g – 511;
  • Static load rating, KN – 90,1;
  • Dynamic load ratings, KN – 64,8;
  • Rated speed, rpm./min. – 5000.

As you can see, reinforced rear hub bearing for VAZ-2108 has a high resistance to loads. But the frequency of rotation should not exceed 5 thousand rpm./min. Such articles with proper maintenance, can freely “go” to two hundred thousand kilometers.

Bearing rear hub VAZ-2108: dimensions

As for the size of the wheel bearing, both versions are the same:

  • Diameter outer, mm – 60;
  • Diameter inner, mm – 30;
  • Width mm – 37.

Bearing rear hub VAZ 2108 size

If you are offered bearing rear hub VAZ-2108, the dimensions of which do not meet these, it's better to abandon the purchase. All of the above parameters provided by the GOST 520-2002. Foreign counterparts of the parts are manufactured in accordance with ISO 15:1998 and have the same dimensions.

How to understand that the hub bearing it's time to change

Failed Bearing rear hub VAZ-2108 can affirm its faults:

  • The appearance of the characteristic hum of the wheel-side;
  • Uneven wheel rotation;
  • Education of the backlash.

Noticing that one or both of the rear wheels heard the roar, rush to diagnose wheel bearings. It can be done right in your garage. Just poddomkratit the rear wheel and turn it by hand. It should easily and evenly to spin without making any sound. Then grasp it with two hands and try to sway it from side to side in the horizontal direction. If the wheel rotates unevenly, and when it is slacking there is a backlash, get ready to repair.

number of bearing rear hub VAZ 2108

Features selection

Buying Rear hub bearing for VAZ-2108, pay attention to the manufacturer. Currently more or less high-quality domestic items produced by such companies:

  • SPZ (Saratov bearing plant);
  • GPA-4 (Samara);
  • VBF (GPZ-23 Vologda);
  • GPZ-20 (Kursk).

It is believed that the best domestic manufacturer of bearings is exactly the Saratov plant. Its products are very reliable, but it is not very expensive. So, bearing Rear hub Assembly for VAZ-2108 the production of the SPZ is in the range of 400-450 rubles.

Product VBF also have high reliability and are a little cheaper. Bearings SPZ-4 and GPP-20 is designed for those who like to save on parts. They cost even less, but the quality leaves much to be desired.

There are imported analogues. They are, of course, expensive, but the quality is not in doubt. For example, Bearing SKF rear hub VAZ 2108, produced in Sweden, costs about 900 rubles. About the same cost and its Japanese counterpart – NSK.

Replacement bearing rear hub VAZ 2108

Required tools

Before you begin repairs, make sure that you have enough tools and resources:

  • Chocks for the wheels;
  • Jack;
  • The key for the wheel bolts;
  • Chisel (Kern);
  • Any object to fix the position of the bodythe car when jacking (a stump a few bricks etc.);
  • Hammer;
  • Intermediate piece of wood (bar);
  • Head on “30” with long handle;
  • The key to “7”;
  • Vices;
  • Cut the pipe at the outer diameter of the bearing;
  • Long nose pliers;
  • Special puller for wheel hub;
  • Special pliers for the Circlip;
  • Fluid against rust.

If you decide to change The rear hub bearing of the wheel on VAZ-2108, replace the hub and nut. At least it recommends that the manufacturer of the car. The fact that the nut has a special edge that is bent during installation and break during disassembly.

Bearing rear wheel hub VAZ 2108

Changing the rear wheel bearing with your hands

Replacement bearing rear hub VAZ-2108 is performed in the following order:

  1. Install the machine on a level surface, fix the front wheels, exposing them for wheel chocks.
  2. Remove the cap covering the hub nut.
  3. Chisel (or core) turn down the angled edge of the hub nut so that it did not prevent its loosening.
  4. Using head on “30” with long handle turns the nut. If it can not be treated in threaded connection with the liquid from rust.
  5. After loosening the nut turns (not completely) the wheel bolts.
  6. Raise the body of the Jack, fix its position with the help of hemp (bricks), we turn on the wheel bolts. Dismantle the wheel.
  7. The Key to “7” Unscrew the guide bolts on the drum (2 PCs.)
  8. Remove the drum. If it is not removed, treated in place he placed on a ledge of the hub, a fluid to combat the rust, then knocked down with a hammer and shims out of wood.
  9. Now fully Unscrew the wheel nut.
  10. Using a special puller to dismount the hub by grasping it at the “legs” and rotating the nut. If you don't have such a device, take the shot wheel and screw it to the hub on the reverse. Use the wheel as leverage.
  11. Remove the hub from the axle.
  12. Using long nose pliers or special pliers, remove the snap ring of the bearing.
  13. Put the hub in a vise and with a hammer and cut the pipes carefully knock out the bearing.
  14. When the bearing is knocked out, grease the inner surface of the hub with grease.
  15. Install the new bearing without removing the hub from the vise.
  16. On Top of the bearing, put the spacer wood and hit it with a hammer, hammering the part into the hub until it stops.
  17. Put in place the snap ring.
  18. Put the hub with the new bearing on the axle. If she sits tight, helping her to sit down with a hammer and spacers.
  19. Wrapping a new hub nut. Tighten it until it stops. The hub has yet to move in.
  20. Install the brake drum, fix it the guide bolts.
  21. Mount the wheel.
  22. Remove the Jack, tighten the hub nut fully. If you have a torque wrench, follow the tightening torque (186,3-of 225.6 Nm).
  23. Folded around the edge of the nut, fixing her position.
  24. Put on the nut cap.
  25. Poddomkratit body, check how the wheel rotates and for looseness. It is also recommended to check the Parking brake operation.

Bearing SKF rear hub VAZ 2108

Some practical advice

  1. To wheel bearing served as long as possible, avoid rough road, do not brake directly on the bumps or pits.
  2. Check the condition of the bearing at least every three months.
  3. If you notice signs of bearing failure on the road, do not worry. Even if he is out of order, you will still reach home or the nearest service station. And nothing will happen.


Article in other languages:

AR: https://tostpost.com/ar/cars/20595-vaz-2108.html

BE: https://tostpost.com/be/a-tamab-l/38237-padshypn-k-zadnyay-stup-cah-na-vaz-2108-pamery.html

DE: https://tostpost.com/de/autos/37989-lager-hinterradnabe-auf-vaz-2108-ma-e.html

ES: https://tostpost.com/es/coches/37920-rodamiento-eje-trasero-en-vaz-2108-dimensiones.html

HI: https://tostpost.com/hi/cars/22267-2108.html

JA: https://tostpost.com/ja/cars/20242-vaz-2108.html

KK: https://tostpost.com/kk/avtomobil-der/38645-podshipnik-art-y-k-pshek-vaz-2108-m-lsher.html

PL: https://tostpost.com/pl/samochody/40206-o-ysko-tylnej-piasty-na-vaz-2108-wymiary.html

PT: https://tostpost.com/pt/carros/39845-rolamento-traseiro-cubo-em-vaz-2108-dimens-es.html

TR: https://tostpost.com/tr/arabalar/35161-rulman-arka-g-bek-vaz-2108-boyutlar.html

UK: https://tostpost.com/uk/avtomob-l/39048-p-dshipnik-zadn-o-matochini-na-vaz-2108-rozm-ri.html

ZH: https://tostpost.com/zh/cars/43157-vaz-2108.html






Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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