Bearing front hub VAZ-2108: dimensions, price, replacement

In this article you will learn about the bearing of the front hub VAZ-2108, its dimensions, and also how the replacement is made. This is one of the most important elements in the wheel drive system, so it needs constant monitoring. If you do not pay proper attention to this bearing, it may become jammed due to wear. If, for example, this happens on the left wheel, it will start to brake, and the car will also lead to the left side. If this happens at high speed, then it is possible that the car will throw out of the road. To replace the front hub bearing, you will need some tools.

What tools are needed to replace?

So, now you need to talk about what kind of devices you might need during the work. Of course, in the first place you need a jack and supports. With their help you can lift the car's repaired side and fix it in this position. Also under the rear wheels it is necessary to lay the stops, which will not allow the car to move.

It will also require large and good grip. For pressing a new bearing a special mandrel is needed. You can make it from the old bearing housing. Of course, there is nowhere to do without a good set of keys and heads, small pliers, it is desirable in addition to them to have a puller for the retaining rings. Do not interfere with screwdrivers cross and flat in different sizes. Also it is worth noting that the bearing of the front hub VAZ-2108, the dimensions, the price of which are specified in the article, must necessarily be changed with the help of special tools. The cost of a set of bearings for one hub is about 400 rubles.

And now about the heavy tool. The most important thing is a 30-head with a very large lever. You can also use a spanner of the same size. But not everyone, unfortunately, will be comfortable in this matter. A mounting blade or small crowbar is also required. When removing the hub requires a good marker, which is not erased when exposed. And the most important thing is a bearing stripper. Without it, repairs will be tedious and very long.

Symptoms of a malfunction

The bearing is located directly in the front hub. To get to him, you need to spend a lot of manipulation. This node changes in the event that suddenly strange sounds begin to appear. More specifically, a very powerful buzz comes from the left or right front wheel. And the higher the speed, the stronger this sound. It is possible that during the making of turns the noise may temporarily disappear. Therefore, we can conclude that it is necessary to replace the hub and bearing of the hub on VAZ-2108.

But when the trajectory straightens, the hum returns again. It is worth noting that it is not necessary that the rumble ceases during the turn. For example, if the bearing on the right side fails, then it is possible that the noise during the turn to the left will disappear. If you turn to the right, no changes will be observed. Similarly occurs when the bearing on the left side breaks down.

Causes of malfunctions

And now about why the front hub bearing VAZ-2108 breaks. Its dimensions (at a weight of 445 grams) are as follows:

1. The width is 3.7 cm.
2. The inner diameter is 3.4 cm; External - 6,4.

The most frequent reasons why the bearing orders a long life are water ingress or striking. The bearing temperature rises if you are driving very long on the highway at high speed. In the event that after that you fall into a puddle, especially if you continue to drive through the swampy terrain for a long time, the bearing will be in the water. Lubrication at this time, almost all washed out. After a short while you will hear extraneous sounds. It is worth noting that on the front-wheel drive cars VAZ, starting from model 2108, a bearing consisting of two rows is applied. It does not need to be lubricated during operation, so the risk that the water will wash all the lubricant is extremely low. Very often, the cause of premature failure of the hub bearing is riding on uneven roads. For example, when you are moving at a speed, notice a pit, start to jerk the brake pedal sharply, then you are doing a great harm to your car. Strangely enough, but getting into the pit at speed without pressing the brake is much safer. The fact is that there are inertial forces, the weight begins to move from the rear axle to the front. And when there is a direct impact, the bearing of the front hub is affected at times by large forces. For this reason, it will be necessary to replace the bearing of the front wheel hub VAZ-2108.

Repair Kit

Pay attention, that in a complete set with new bearings there should be lock rings. You will also need a new nut. The old nut can not be used, as you will not be able to tighten with the necessary force. The first thing to do is to remove the cap that covers the hub nut. After this, you need to straighten the edge of the nut with a hammer and a thin prick. In this way, you will have the ability to unscramble it to unscrew it later. Note that the car's side has not yet risen. First, loosen the hub nut. To do this, use a head for 30 with a large lever. It is possible that you need to extend this lever with a piece of pipe. After this, it is only necessary to loosen all four hub bolts and maximize the side of the car. Now you can finally unscrew the wheels on the bolts and the nut.

Removing the hub

Armed with a key for 17 and remove the brake caliper. Using a wire, hang it to the spring or body. Do not drain the brake fluid. Note that with the caliper removed, do not apply the brake pedal. Now you need to unscrew the two bolts with a key on the 17, which fixes the ball bearing to the hub. There is also a fastening on top. Two bolts on 19 need to unscrew the bolts on the rack. Be sure to prioritize the position of the pivot with respect to the strut. That's all, the attachments are disconnected, now you can proceed with the removal. The entire hub will be removed with the disc. So that it does not interfere with you during the repair, it is necessary to unscrew the two guide pins. This is how the hub of the front wheel is replaced with the VAZ-2108.

Removing and installing bearing

Now you need to get rid of the retaining rings. You can remove them using a special puller or a thin screwdriver and pliers. Without dismantling the lock ring, it will not be possible to press out the bearing of the front hub VAZ-2108. The dimensions of the mandrel, please note, should be the same as the clips. And then you need to work as a puller for the bearing. Without it, the replacement will last a very long time. You can, of course, take a certificate, clamp it in the vise with the hub. But it will be very long. Much faster to put a universal puller, rotate its shaft, so that gradually the bearing comes out of its seat. The installation of a new one should be done with the help of this tool. Note that no lubrication is required for the bearing. It has already inside the required quantity, which is enough for the entire operation time, on which this mechanism is designed. If you do not have a stripper, then you can make out the old bearing even with a hammer. But you can not install a new one, striking with a hammer. Otherwise, the bearing will begin to fall apart. Therefore, it is best to press in at least in the vice. Of course, the ideal option is to work with a puller.