Bearing numbers for generator VAZ 2112 16 valves

Some car enthusiasts have come across the concept of when the voltage in the on-board network drops or a hum appears in the area of ​​the VAZ-2112 generator. This is due to the fact that the bearing of this part has failed. Not all motorists will be able to change it themselves, so this article will focus specifically on the replacement process.

Video about overhauling the generator and its repair on cars of the VAZ 2110-2112 family:

The video material will tell you about replacing the bearing of the VAZ-2112 generator, and will also indicate the nuances and give some recommendations.

Bearing numbers for generator VAZ 2112 16 valves

Generator bearings have a fairly long service life, but still have to be replaced. Let's talk about what generator bearings are used, as well as which company to give preference to when replacing them.

Replacement

Having completely disassembled the generator, we first replace the bearing in the front cover.

The first time I disassembled this and similar generators, one thing surprised me. It turns out that the manufacturer seals the bearing pressed into the front cover of the generator, supposedly to prevent rotation of the outer race of the bearing in the housing.

As I understand it, this is being done to save money, since it is easier to rivet it than to install the bearing locking washer. But it turns out that these are not all surprises; the manufacturer recommends replacing the bearing along with the front cover of the generator. How do you like this news? To be honest, I was a little surprised.

We, of course, will not change the cover, but will only replace the bearing itself.

First, we need to remove the worn bearing from the front cover. When pressing out, you need to take into account several important points, namely: the cover is made of aluminum and can easily be damaged, also, the bearing can sit tightly in its seat or, on the contrary, dangle. To safely remove the bearing, you need to select a special support sleeve that rests against the housing. The photo below shows the red line where the bushing should rest. Bushing stop.

Naturally, the inner diameter of the bushing must be larger than the outer race of the bearing.

Well, then everything goes according to the established scenario, we install it on the bushing and knock out the bearing with some suitable tool. All this is of course good, if not for some nuances that are worth paying close attention to. The first thing we draw our attention to is that the bearing is cored and when it leaves its seat, it will have to remove a certain amount of metal. Neglecting this fact, in most cases, the lid may burst and then you will need to buy a new one.

Whatever happens, you need to remove the metal that secures the bearing. And how to remove it? After all, not everyone has a special tool that can do this. I saw on the Internet many different ways and as soon as these covers did not disfigure. For me, none of the methods that I saw on the Internet worked, because they are very barbaric. I use a very simple method, which I will tell you too.

Everything is very simple, we take a drill and a drill bit with a diameter of about 4 mm. We place the drill at an angle of 45 degrees into the cored hole and drill approximately 2 or 3 mm. And so on every hole. Everything is very simple. Now, when the bearing comes out, the remaining metal will have somewhere to go. And for greater security, the lid can be heated; when heated, aluminum becomes more elastic.

After removing the old bearings, you need to buy new ones. It is best to go to a store or market with old bearings (a sample, so to speak), because they can sell anything, just not what you need.

Before installation, I always check the presence of grease in the bearing. Often it is there, but it is not enough and I always add more. Since the bearings are closed, we need to remove the rubber-metal seal on one side. To remove it, you can use a sharp screwdriver or an awl. Carefully drive the screwdriver away from the inner race and remove the protective ring. Then add lubricant (lithol) and press it into place with your fingers. There is nothing complicated.

Before installing the bearing, you can heat the cover a little, then the bearing will spring into place on its own.

Before removal, we drilled out the core and now we need to re-secure it in the same way. Here you can use a metal rod, which is made of strong metal. If this is not the case, you can use a broken drill with an approximate diameter of 4-5 mm. We end one side of the drill with sandpaper and core the bearing.

How to change alternator brushes follow the link.

What are they worth?

VAZ 2112 generator bearing numbers:

Front bearing 6302 and 6303.

Rear bearing 6202 and 6203.

Depending on the year of manufacture of the generator, bearings may vary: 6302 and 6202 were used in older generators, f 6303 and 6203 in newer ones.

How to change

Now we put a suitable object on the bearing, for example, a 27 socket and knock it out.

We fill new bearings with grease.

We hammer it into place using the old bearing.

Note. In order for the new bearing to sit securely in place, you will need to flare its edges using a chisel or core.

We change the rear bearing. To do this, place a thin chisel or screwdriver under the bearing, and hit it with a hammer on top.

Note. You can also remove the rear bearing in another way, using a large open-end wrench as a lever.

Again, we insert the new bearing through the head 27 or using a suitable pipe of the required size.

We begin assembling the generator.

The front cover is installed first, and then everything is done in reverse order.

The above instructions for replacing bearings with your own hands are unique and fully consistent with practice. It is recommended to use photos and video materials during the process as visual examples.

Needless to say, the cost of repairs will be minimal, because you will only need to pay for new bearings and some small items, including the necessary tools.

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Technical specifications

If the old generator fails, many motorists wonder which generator they should now replace the old one with.

There is no need to invent anything here. The most correct solution is to install the same generator as before, or a more powerful one.

Today, the VAZ 2110 provides for the use of three types of power supply devices:

1. Katek 5102.3771. The generator produces 80 Ampere power and its voltage is approximately 14V.
2. Katek 94.3701. This is a device with the same parameters. They are not seriously different.
3. Catek 120 amp. A generator that is more adapted to modern realities, when in addition to standard electrical equipment, motorists install many additional devices.

If you have a powerful audio system in your car, you use an electric pump powered by the car, as well as a number of other additional consumers, it is recommended to install a 120-amp unit instead of a standard 80-amp generator.

If we take into account the size of the devices, then we can distinguish between ordinary and compact ones. They have a certain difference in design

To be specific, the differences are in the following components:

• Brackets;
• Anchor;
• Excitation wire;
• Drive pulley;
• Number of mounting bolts.

But in reality this does not play a special role. After all, the structure of all generators used for the VAZ 2110 is the same. Therefore, let's look at the circuit and structure of this unit.

The presented device is relevant for all generators used on the VAZ 2110, regardless of their power - 80-120 Amperes.

Margin of safety

If we take into account the standard Katek generator, which is installed on domestic dozens, then its resource is enough for about 10 years of operation or 140 thousand kilometers. The specified safety margin of the device can only be relied upon if it is handled properly

The specified safety margin of the device can only be relied upon if it is handled properly.

Many people fear that a powerful 120 A generator can negatively affect the condition of the battery. In practice, nothing like this happens. Moreover, installing a more powerful unit is recommended if you plan to install an impressive audio system or video equipment on the car.

Bearing numbers for generator VAZ 2112 16 valves

check for grease and put the protection back without consequences?

You can, carefully pry up the boot, just don’t put too much lubricant in, the excess will squeeze out.

I have 202 and 302 bearings on the KZATE 9402.3701 gene.

generator KZATE 14V 80A 2112-3701010. more numbers 9402 3701. If I'm not mistaken, 302 for the belt and 201 for the brushes? I'll probably take the ones from Vologda. Does anyone know if it will be possible to remove the protection, check for grease and put the protection back without consequences?

generator KZATE 14V 80A 2112-3701010. more numbers 9402 3701. If I'm not mistaken, 302 for the belt and 201 for the brushes? I'll probably take the ones from Vologda. Does anyone know if it will be possible to remove the protection, check for grease and put the protection back without consequences?

What are you going to lubricate it with?

For example, General Motors 12 371 287 or SKF LGHP 2. Well, for example, you can look at the nsk catalog, there is the applicability of their lubricants.

Added after 36 seconds:

need bearings with C3 - Increased radial clearance

you need bearings with C3 - Increased radial clearance, ordinary ones will not last long

Do you really believe that we have bearings on sale that actually meet any requirements?

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Principle of operation

But such a problem occurs extremely rarely and is due to non-compliance with the operating conditions of the generator. If water, oil, or other liquids get on it, you will soon get a short circuit. This is an instantaneous increase in the current strength in the circuit to an infinitely large value.

But when the ignition is turned on, voltage is supplied to the rotor winding (excitation winding). Without power to this circuit, the operation of the entire VAZ 2110 generator is impossible. When the rotor is set in motion, a magnetic field is formed around it. And this is the most important condition for the operation of generator sets.

As a result, the output of the automobile generator produces a voltage that is variable and stabilized (due to the stabilization of the supply voltage to the rotor winding). The next stage is rectification using semiconductor diodes. The result is a constant voltage, which is filtered by a large capacitor.

What bearings are in the VAZ 21124 16 valve generator?

Generator bearings have a fairly long service life, but still have to be replaced. Let's talk about what generator bearings are used, as well as which company to give preference to when replacing them.

Replacement

Having completely disassembled the generator, we first replace the bearing in the front cover.

The first time I disassembled this and similar generators, one thing surprised me. It turns out that the manufacturer seals the bearing pressed into the front cover of the generator, supposedly to prevent rotation of the outer race of the bearing in the housing.

As I understand it, this is being done to save money, since it is easier to rivet it than to install the bearing locking washer. But it turns out that these are not all surprises; the manufacturer recommends replacing the bearing along with the front cover of the generator. How do you like this news? To be honest, I was a little surprised.

We, of course, will not change the cover, but will only replace the bearing itself.

First, we need to remove the worn bearing from the front cover. When pressing out, you need to take into account several important points, namely: the cover is made of aluminum and can easily be damaged, also, the bearing can sit tightly in its seat or, on the contrary, dangle. To safely remove the bearing, you need to select a special support sleeve that rests against the housing. The photo below shows the red line where the bushing should rest. Bushing stop.

Naturally, the inner diameter of the bushing must be larger than the outer race of the bearing.

Well, then everything goes according to the established scenario, we install it on the bushing and knock out the bearing with some suitable tool. All this is of course good, if not for some nuances that are worth paying close attention to. The first thing we draw our attention to is that the bearing is cored and when it leaves its seat, it will have to remove a certain amount of metal. Neglecting this fact, in most cases, the lid may burst and then you will need to buy a new one.

How to find out that the generator is faulty

Replacing a bearing on a VAZ 2112 generator

This is quite easy to do. You need to pay attention to some points:

• You can judge whether the generator is faulty if the battery indicator lamp on the instrument panel constantly blinks while the engine is running.
• The battery quickly discharges or, on the contrary, boils away.
• The car headlights are too dim, even though the battery is new and fully charged. In addition, when the engine is running, a characteristic quiet but rattling sound is heard.
• As engine speed increases, the brightness of the headlights changes significantly. For example, when over-gasping, this is also observed with a working generator, but in this case the headlights brighten, but then remain at the same intensity. With a faulty generator, this happens all the time as soon as the speed increases.

Replacing generator bearings VAZ 2112

• Extraneous sounds and squeaking coming directly from the generator.

Attention! Belt tension and the general condition of the generator must be checked regularly.

Causes of bearing wear and checking them

Replacing the generator bearing VAZ 21124

Almost all mechanical damage in a car generator, including bearing wear, is associated with long-term operation. Modern generators are equipped with sealed bearings that cannot be repaired. It is these bearings that, after a certain service life, must be immediately replaced entirely.

Replacing the generator bearing on a VAZ 21124

In addition, the following may be the causes of bearing wear:

• Poor and low quality components.
• The presence of unfavorable external factors: high temperatures, moisture, salt, road chemicals, dirt, etc.
• Violation of operating rules or operation outside normal operating conditions.

If the bearings on the generator are worn out, then it begins to howl or hum. In some cases, when the engine is running, the generator begins to whistle in a special way. In these cases, the bearings must be replaced, having inspected their seats in advance.

Replacing a generator bearing on a VAZ-2112: which bearings to choose?

Some car enthusiasts have come across the concept of when the voltage in the on-board network drops or a hum appears in the area of ​​the VAZ-2112 generator. This is due to the fact that the bearing of this part has failed. Not all motorists will be able to change it themselves, so this article will focus specifically on the replacement process.

Video about overhauling the generator and its repair on cars of the VAZ 2110-2112 family:

The video material will tell you about replacing the bearing of the VAZ-2112 generator, and will also indicate the nuances and give some recommendations.

Product description LADA 2112370102

The Part-auto online auto parts store works exclusively with trusted suppliers of auto parts, which gives you confidence in purchasing truly high-quality spare parts. Available LADA spare parts are focused on the most popular models of automobile brands: Spare part 2112370102 can be used in several modifications and models. To clarify applicability, you must send a VIN request and our specialists will check the compliance of the spare part with your car.

What bearings are in the VAZ 21124 16 valve generator?

Generator 2110/2112 9402.3701000 80 A “KZATE”, the bearings squealed. Tell me what kind of bearings are there: type, number or whatever, so that the store will give you what you need.

so that the store gives you what you need.

Vyacheslav II

The engine gene according to the plate is 2112, although the book is old (2002) and there may be variations.

Are bearings 303, 203 somehow different from 6303, 6203?

Which bearing manufacturer should I choose?

Starter-generator repairs are now on every corner

I can change it myself, no worse than the servicemen, and pay my uncle.

China. What model is this generator?

It looks like the launch vehicle and the bolts and winding of the armature (and it itself is made of plasticine), everything is Chinese, only Russia is written on the horseshoe. 9402.3701-03 KZATE

Added after 1 minute:

The GPP is the State Bearing Plant, and there should also be numbers about it - which plant exactly.

Everything is Chinese, only Russia is written on the horseshoe. 9402.3701-03 KZATE

Perhaps the anchor was purchased there too..

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Generator bearing, price:

• The cost of bearings is from 20 to 150 rubles.

Alternator Bearing Size : The rear alternator bearing (6202) has dimensions:

• Inner diameter, mm: 15
• External diameter, mm: 35
• Width, mm: 11

The generator front bearing (6303) has dimensions:

• Inner diameter, mm: 17
• External diameter, mm: 47
• Width, mm: 14

How to replace the generator bearings and how to remove them without a special puller : See the instructions “replacing the generator bearing”.

How to check generator bearings : See instructions.

So, let’s vote and leave reviews about generator bearings :

1. How often have you had to change bearings?
2. What brand of bearings did you choose?

ps All off-topic comments will be deleted.

Which generator bearings are considered to be of better quality?

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Reasons for failure

There are many reasons for bearing failure, but there are several main reasons, which are discussed below.

Wear

On the left are old bearings, on the right are new bearings.
Wear is a typical cause of bearing failure, since the number of revolutions of the generator rotor is huge over the Nth period of time. Consequently, the lubricant in bearings under the influence of high temperatures loses its properties and the bearing ceases to receive the required slip coefficient, which causes heating and increased clearances in the ball part of the bearing.

Belt tension

Excessive tension on the alternator belt greatly affects the life of its bearings. It is necessary to tension the belt correctly, observing all norms. The generator belt should bend under the influence of 10 kg. by 5-7 mm.

Size and catalog numbers

These parameters of the ball bearing are necessary for purchase, since without these numbers it is very difficult to buy the right part suitable for your car.

The dimensions of the bearings varied depending on the year of manufacture of the car, so the selection of a bearing can be carried out based on the year of manufacture. auto.

Cars manufactured before 2001 with carburetor engines they have bearings of type 6302 front and 6202 rear.

Cars produced after 2001 with injection engines, have bearings type 6303 front and 6203 rear.

Catalog numbers (articles) and external dimensions