How to change the front and rear wheel bearing with your own hands. What is a rear wheel bearing, how does it work and how to replace it? How to change the rear hub on a vaz 2110

13.10.2019

Replacing the rear hub of the VAZ 2109 does not require special knowledge. It is necessary in the event that it has been worn out.
The hubs, in turn, play a very important role. Without them, the wheels will not rotate at the desired speed, which will first lead to damage to the brake system, and then to the failure of the entire car.
Therefore, if there are any problems with the front hubs, they must be diagnosed in advance so that it is not too late later. Replacing the hub of the VAZ 2109 can easily be done on your own.

What causes damage to the rear hubs

Hubs often stop functioning properly if:

In there is, though small, but a backlash. That is, they are slightly wobbly. At the same time, you need to ensure that this backlash does not develop into a “Mega backlash”.

Note: If the bearings wobble too much, they may damage other parts in the vicinity.

A hum is heard during bearing operation. It usually gets worse as the speed increases.
After that, when reducing the speed, it does not become less quiet. Both bearings need to be replaced at the same time.

Note: that is, if the hum is heard only from one side, then only one bearing is damaged. But most likely the second also did not last long. And besides, buying two bearings in a set will be much cheaper than buying them separately.

The bearings are overheating. This is due to the fact that they begin to spin much faster than usual.
This may cause it to boil too quickly. Therefore, the brake system will “cover up”.
The wheel bearing is falling apart. Perhaps it is only at the initial stage of destruction.
It needs to be changed urgently, as a faulty bearing can cause serious damage.
Steering wheel not working well.
There are shortcomings in the operation of the upper or lower ball bearing.
Wheel bearing nut is loose. Such an oversight can cause backlash.
In this case, you can do just screwing this nut until it stops. That is, the hub or its bearing should not be changed.

Rear hub replacement

To make a quick and at the same time high-quality replacement of the rear hubs, you must:

Jack up the car.
Loosen the wheel nut. For this, a 30 head is needed.
Remove the wheel itself. To facilitate this process for yourself, you just need to pull it forward, and with the other hand slightly push it from behind.
Remove the brake caliper.
Removing , you will have access to the hub. In some cases, it sticks to the hub, so in order to pull it out, it should be pressed.
Therefore, many people remove the hub along with the drum or disc (if the brakes are disc), and after that they buy both a new disc and a new hub.
Unscrew the hub nut. It is fastened with three bolts.
Since the bolts are too close, and there is already very little free space, it will be very difficult to turn the head.

Note: in order for a bolt that is too tight to “succumb”, it should be slightly warmed up. Hot iron is much easier to handle, although you need to be careful not to burn yourself, because it heats up to high temperatures very quickly.

Pry out the hub from the back with a screwdriver.
Clean the seat from dust and dirt. Lubricate it thoroughly with a degreaser.
If a new hub was purchased without an oil seal (and usually they are sold that way), then the cuff can be removed from the old one and installed on the new one. Before installation, the gland must be lubricated with a special liquid.

Note: if necessary, sealant can be dripped several times under the oil seal so that it sits better.

Put the hub in place. Slightly tighten the hub nut so that the hub does not fall out.
Push it inside.
Tighten all necessary screws on the reverse side.

How to replace a rear wheel bearing

To begin with, it is better to check whether the rear bearing is really defective. This process is best done with an assistant.
For this:

Jack up the wheel. You can also use the lift or viewing hole.
Start the car.
Engage 3rd or 4th gear.

Note: The hum is heard immediately.

In order not to interfere with the sound of the engine, you need to press the clutch, turn off the ignition and listen for extraneous sounds. If the hum is still observed, then the problem was, indeed, in the bearing.

To change the old bearing to a new one, you need:

Loosen the hub nut. It's better to do it together.
Release the steering knuckle from the ball joint.
Remove the brake caliper by unscrewing the two 17mm bolts.
Remove with hub. It's easier.
If, after turning the disk, an incomprehensible sound is heard again (resembles a creak), then the problem was precisely in the bearing.
Do not do without a special tool. It's a long bolt and nut.
You will have access to the bearing.
It is necessary to remove the retaining ring with the help of round-nose pliers, for which there is a special hole.
Remove the bearing with a puller.

Note: you can not do this with a sledgehammer, as it will only spoil his "nest".

Remove the bearing.
Change it.
Assemble everything in reverse order.

Note. The reason for the hum can also be that the bearing is poorly lubricated or there are cracks on its surface.

The surface must be thoroughly cleaned before pressing in (even a small grain of sand can affect the insertion of the bearing).
Collect everything back.
The most difficult thing will be to install the ball joint in place. Here you simply can not do without an assistant.

You can replace the hub with your own hands. Moreover, this process does not take too much time.
Moreover, now there are many photos and videos on the Internet on this topic. The instructions offered here can also help in this difficult matter.
She should be given maximum attention. All you need is to figure it out.
And most importantly, the price of home repairs will be much lower than that offered by car services. You will need to pay only for the hub or bearing (depending on what needs to be changed).

If sounds and noises that are uncharacteristic for a serviceable car appear, you should definitely look for the source of their origin. If the noise that appears in motion comes from the rear wheels and changes its tone when performing maneuvers, then the rear hub bearing needs to be replaced.

Bearing inspection and preparation for repair

In the reference auto literature, you can find information about what resource some car parts have. For the life span is approximately 100 thousand km. This number is very relative.

Factors such as:

intensity of car use and driving style;
the condition of the roadway in the region where the car is used;
the quality of previously installed parts;
frequent transportation of goods, uneven distribution of goods, overload, use of a trailer.

Unlike the front wheel hub, with the rear wheels you often have to deal with the fact that the need to replace the hub bearing arises much earlier than the motorist expects. Considering that the vast majority of cars produced by the domestic and foreign auto industry have front-wheel drive, the issues of diagnostics and rear wheels of just such cars should be considered.

The appearance of characteristic noise from the rear wheels in motion is only the first sign indicating wear on the bearings. To start work, you need to make sure that the “diagnosis” is correct. The rear wheels should be hung out one by one, lifting the corner of the body with a jack.

The wheel must be spun and listen to the sound that comes from it in free rotation. A worn bearing will make a characteristic noise instead of running quietly. In addition, you can take the wheel with both hands from different sides and check the axial play, pulling it, then with your right, then with your left hand.

If the replacement of the rear hub bearing is inevitable, it is necessary to prepare tools:

jack;
a set of keys for car repair;
rags, WD-40;
workbench with vise;
special or handicraft pullers.

The new bearing is omitted from the list intentionally, since its purchase should be made after the old one has been dismantled. Sometimes, after disassembling the assembly, it becomes necessary to replace the bearing together with the hub or trunnion.

How to replace a rear wheel bearing

Any work in the garage begins with putting on overalls, freeing the repair site from unnecessary items and arranging lighting. Further, everything is quite simple.

You must follow the following algorithm:

put in first gear, the front wheels are fixed with "shoes";
the protective cap of the hub is removed and a dent on the side of the nut is bent with the help of a core;
socket wrenches break off the hub nut and wheel bolts;
the wheel is hung out by raising the corner of the body with a jack;
the wheel is unscrewed and removed;
by screwing the bolts into the removable holes or with the help of blows through a wooden spacer, the brake drum is removed;
the hub nut is unscrewed;
the hub is removed from the axle shaft (if the hub is very easily removed from the king pin axle, this may indicate severe wear on the seat. The king pin may need to be replaced.). In order to quickly remove the hub, you can screw the wheel to it and pull it with both hands or use a special puller;
a retaining ring and an oil seal are removed from the hub;
with the help of a pipe section of a suitable diameter, a bearing is knocked out of the hub;
the hub and axle shaft of the kingpin should be cleaned of dirt, old grease, traces of corrosion, the seat for the bearing races should be lubricated.

At this stage, the disassembly of the hub assembly ends. Having done the operation for the first time, even an inexperienced motorist will be able to learn how to replace the rear hub bearing with their own hands. There really is nothing complicated about this.

Installing a new bearing

In order for the car to be able to drive again, it is necessary to complete the work and perform the following technological operations:

a new bearing is pressed into the hub (does not drive in!). To do this, you can use a vise or a long bolt with large washers. For the final seating of the bearing, you can use a spacer from the old bearing race;
a new oil seal is installed in its place also with the help of a press or with light hammer blows through a wooden lath. When installing the bearing and stuffing box, it is necessary to monitor the uniformity of their immersion, to avoid distortions;
the hub assembly is mounted on the trunnion axle shaft. The inner race of the hub bearing is put in place by applying light hammer blows to a pipe segment, the inner diameter of which is slightly larger than the diameter of the axle shaft;
the hub nut is tightened (tight). The side of the nut is bent into a groove located on the axle shaft, a protective cap is installed;
the brake drum is put in place;
the wheel is screwed;
the rotation of the wheel on the new bearing is checked;
the car is removed from the jack.

As can be seen from the description, changing bearings is not particularly difficult, which allows car owners to perform this manipulation on their own, saving money on visiting a car service.

The rear hub bearing is a very important element of the rear wheel rotation mechanism. The main task of the bearing is to ensure that it smoothly ensures the rotation of the wheel. In this article, we will look at how to replace the rear hub bearing with our own hands, so as not to go to a service station, where they will take normal money for work.

When an unpleasant knock appears in the area of \u200b\u200bthe rear wheels, mainly on bumps or small pits, and on a flat road a characteristic hum is a message to the motorist that the rear hub bearing is faulty and needs to be replaced. I do not recommend delaying the repair, as this breakdown can pull the rest of the components and assemblies of the car.

Video. Do-it-yourself rear wheel bearing adjustment

Note that in the previous article we considered its work and do-it-yourself replacement. Due to improper idle adjustment, the car has problems with increased fuel consumption, so I recommend paying attention to this article.

How to determine if the rear wheel bearing needs to be replaced?

The main cause of rear wheel bearing failures is our most beloved domestic roads, which are simply in a terrible state. Road bumps and pits simply knock out the bearing, it quickly goes into disrepair. Another reason, quite popular in recent years, is the poor quality material from which the bearing is made. Self-replacing the rear wheel hub bearing on a car is a fairly simple repair that can be done in a garage.

Video. Do-it-yourself installation of rear wheel hub bearings

How to determine if the problem is in the rear hub bearing? Everything is very simple, you need to raise with a jack the side where the knock or rumble is pronounced, take the wheel with your hands and swing it. Thus, we will check the wheel play and if it is found, an immediate replacement is required. A bad bearing can damage the rest of the system in the hub.

Unfortunately, sometimes our cars break down and need to be repaired, it is necessary to change various parts, optics, and in some cases, the rear hub bearing needs to be replaced, although, as statistics show, this happens quite rarely.

How to recognize problems in the hub?

The fact is that the hub is the most important element of any rotating mechanism, including an automobile wheel. It is a central part of rotating parts with a hole for the possibility of fitting it onto an axle or shaft. Thus, its main task is to provide rotational motion. In order to prevent free rotation on the axle, rolling bearings or special plugs are pressed into the hub hole. In addition, it is thanks to the bearings that the hub, as well as the wheel, can rotate.

It is quite easy to notice that it is urgent to replace the hub bearing, in this case there is a characteristic knock in the rear lower part of the body, most often, it intensifies when driving on rough roads or when hitting pits, as well as mounds. While driving on a relatively smooth road surface, a hum may occur. In addition, the brake drum is very hot.

Checking if the rear wheel bearing needs to be replaced

First of all, the cause of such a breakdown is bad uneven roads, especially since in some cases our road surface can hardly be called a road at all. The second reason why the bearing may become unusable is the poor-quality material from which it was made. the rear wheel is not a very complicated process, so it can be done quite easily on your own at home.

However, before proceeding directly to the actions, you should find out whether it really is the case. To do this, you need to hang out the wheel from which the rumble is heard, and, swinging it with your hands, check the play. If, during the implementation of these actions, the backlash is detected, and at the same time there are deaf knocks, then it is impossible to delay the replacement. A bearing falling apart along the road will cause damage to other parts of the hub system.

The key to fast and high-quality work is the right tool and high-quality materials, in this case the bearing. Therefore, do not try to save on it, purchase options only from good manufacturers, because the service life largely depends on this.

Replacing the rear hub bearing - your steps step by step

From the tool you will need a screwdriver, a jack, a wheel wrench, lithol, a hub nut puller, sometimes chisels and a pry bar. Next, having prepared everything you need, we proceed as follows. We put the car in first gear, having previously placed “boots” under the front wheels. We raise the car with a jack and dismantle the desired wheel. Having unscrewed the guide pins, you need to remove the brake drum, most often it is knocked down. Now the hub nut is unscrewed with a special puller and the hub itself is knocked off the trunnion. It must come off with the bearing ring, otherwise it must be removed with a pry bar and a chisel.

In order to press the bearing itself, it is necessary to remove the retaining ring with special pliers and knock off the metal boot. Next, you need to lubricate the seat and use a special puller to press the new bearings back. At the same time, keep in mind that it is highly undesirable to score them.. Now back and retaining ring. By hitting the inner ring of the bearing, we put the hub back on the trunnion. Next, you need to tighten the trunnion and hush up its sides as best as possible. The process is almost completed, the pads, the brake drum and, of course, the wheel are being installed in their original places.

The wheel hubs of a car are indispensable parts of it. On both sides they have two holes: for landing the wheels and landing on the shaft. Before considering the question of how to remove the wheel hub, let's see what makes it unusable, and when does it need repair or replacement?

The hub is removed mainly when replacing bearings and other worn parts. The rules for removing and installing in most cars are the same. But there are some brands with deviations from the dismantling process. Deviations depend on the concern that produced the car. Performing any work, you should not forget when repairing the machine.

The main function of the hub is to transmit torque from the axis of the crankshaft to the wheels of the vehicle. It also serves as the basis for fastening the brake discs. On the hub bearing itself, the wheel rotates. It follows that the main components of the entire undercarriage of the car, which ensure safety during movement, are provided with a wheel bearing and a hub.

A malfunction of this part sometimes occurs at the time of replacing the wheels: if you tighten the hub bolts on the wheel of a car, they can be torn off. If you hear an uncharacteristic rumble in the bearing, know that the part needs to be replaced or repaired. The wheels should be screwed neither hard nor weak, look for the border. This is best done with an electric wrench. He will definitely not let you down. The wrench will easily find that very "golden mean".

How to remove the rear wheel hub and what is needed for the work?

Universal wheel removal wrench.
Keys for 17 and 22.
Set of heads.
Ball bearing puller.

Reliable jack.

In our online store, you can, suitable for your parameters! More than 6000 tire models, delivery in Russia, the best brands in the world!

How to remove the rear wheel hub yourself?

Removing the hub of an automobile wheel, having some experience, is not difficult. Here it is important not to forget that the bearing from the hub is a rather fragile part and when tightening, it is worth calculating the applied efforts in order to avoid damaging it. How to remove the rear hub?

When replacing the hub, first you should:

raise the car on supports (dummy tripods or a jack);
remove the decorative cap of the disk;
unscrew the nuts securing the wheels;
remove the brake drums (if any), as well as brake discs, brake caliper (if disc brakes are installed on the rear wheels of the car);
turn the flange, while aligning the hole of the hub with all the available bolts on which it is attached to the bracket, and unscrew them;
it is also necessary to unscrew the bolts on which the caliper is attached;
unscrew the fasteners of the steering knuckle;
unscrew the fixings of the brake shoe guides.

The next step is to remove the hub itself. It is very easy to dismantle it through the brake mechanism and remove it. But you can also remove it from the bearing when the auto-lock brake system is not installed on the machine. However, special tools are indispensable here, and you will have to visit a technical service. The specialists of the institution will perform the work you need much faster and better.

You can also remove the front wheel hub.

If you need to remove the front wheel hub, you must know that the wheels themselves are removed first. Next, the sensor must be removed from the steering knuckle, and the lock plate should be removed from the rack. Now you can unscrew the mounting bolts from the caliper bracket.

So that the caliper bracket does not interfere with the entire process of working with the hub during subsequent operations, hang it. Next, you need to remove the brake disc, get the cotter pin and slightly loosen the lock nut. The hub itself and the wheel bearing must be disconnected from the drive shaft.

Important! When performing the hub removal process, the drive shaft joint must not be bent too much, under any circumstances. We do not recommend overdoing it when stretching the sliding hinge. And the drive shaft should not just hang without support from the housing and other spare parts.

Having fulfilled all the necessary requirements, we can remove the hub from the wheel. But if a person removed the hub incorrectly, problems may arise that can only be corrected later in a service center.