What lubricant to lubric the bearings of the cross. Lubricant for driven crossing. Lithium lubricant for crosses from MSK

Using a car, Niva Chevrolet, many forget that the crossed of the cardan shaft must be lubricated, and it is necessary to do it according to the regulations every 15,000 km. And if the car is often exploited in such a medium as puddles, sand, etc., they are desirable to syringe more often. Most car owners do it without removing from the car, so the crusades are not well lubricated, and to make it right, it is desirable to remove it. For standard syringes, the masolka is in an uncomfortable place, and a special adapter may be required to work, which is not sufficiently stable. In time of the syringe using the adapter lubricant for the crosses of the cardan shaft, can start leaking from the joints and if it flows at the junction of the oilbox with an adapter, maybe the illusion of the fact that the crosses is made as follows. To lubricate, as needed to be syringe until the lubricating liquid flows through all the ships of the cross. Therefore, to be sure that the Proward has passed high quality Cardan needs to be removed.

Cardan has several points that need to be lubricated, it is:

• A pair of Pershes-Maslenok, they are on the cross
• One oilbox located near the slotted connection, here it can be lubricated without removing

Exists different kindsFor example, you can use Mobil XHP 222, the table below shows and already decide on it to choose.

How to remove the Cross

In order to remove, it is necessary to prepare a standard set of keys, then we produce the following series of actions:

• We heat the transport on the overpass or the observation pit
• Berm key to 13 and unscrew the bolts on which the Cardan is attached, we do it with one key, as the bolts will not turn. In the process of turning, the nuts in and dirt-resistant rings should be avoided, since if the slot breaks or deformation occurs, the metal ripple will appear during the ride.
• When Kardan is removed, it should be stolen, after receiving a press oil with dirt. A syringe follows the moment until the new grease goes from everywhere.
• To establish a cardan to place, put it in a vertical position, and we pressed a little, it must be done in order for the slotted connection to be surplus, and the internal pressure is sleeping, and it will be difficult to put on it.

In order to lubricate the bearings of the crossliner, it is enough to remove the protective cap from the press oil and the pumping lubricant with a syringe, to lubricate until the lubricant starts out of all four bearings.

Therefore, it is necessary to make this procedure, otherwise the crosses will fail, and will have to buy a new one, and this is quite a cost.

The cardan transmission of any car is subjected to a specific load, which mainly falls on the needle bearings of the hinge mechanism. It requires not only a special lubricant for the cross, but also a specific tool. From this and a number of other factors depends on the further operation of the car.

The term "cardan shaft" began to use from the time Jerolamo Cardano became interested in this node. Since then, the unit is referred to exactly that way and in any way.

Cardan transfer device and its role

The main task of the cardan shaft is to transmit torque from the engine to the wheels. It provides a connection between the secondary shaft of the gearbox and the leading shaft of the rear or front Bridge. This is in cases with rear or front drive. IN all-wheel drive models The trees of the front and rear axle are connected to the shafts of the dispensing box.

The main node of this connection is a hinge, in which in turn is an equally important detail - cross. And how can I understand from the name, it is made in the form of a cross. Each of the ends there is a cup with a needle bearing, which is separated from the housing through a rubber or plastic sealing ring. In the absence of lubricant for cardan crossings and bearings, they quickly fail. The size of the crosses for each car is yours.

Diagnostics

Conducting any repair is impossible without prior diagnosis of the car. And since the cross is the central link in the cardan transmission, it is worth more responsible to approach its inspection.

Usually the fault is manifested:

• noise;
• whistle;
• hum
• severe vibration;
• clicks;
• metallic grinding or crunch.

This is especially possible to feel when moving from the place, or during the movement of the car, or when the gear shift occurs. In some cases, the malfunction can be hidden, so it is extremely important to detect a breakdown in a timely manner.

Currently, in many car services, the diagnosis of car parts, including hodovka, is carried out on modern equipment. This allows you to quickly and with maximum accuracy to detect a breakdown and reveal, there is a lubricant for crossing or it is not at all. Depending on this, one or another liquidation method is selected.

Consequences of ignoring a malfunction

It is worth noting that if any detected breakage will not be eliminated, then the consequences can be different. And since we are talking about the cardan transmission in this case, then ignoring the breakage can threaten the life and safety of the driver and passengers. Moreover, in some cases, the consequences are irreversible.

Need to be responsible before yourself, because not only the driver himself is exposed to risk, but also the surrounding participants road. And if the car enthusiast is accustomed to harmful to himself and the car, then everyone else should not suffer because of this.

Non-flat procedure

It is more convenient to inspect the drive shaft on the pit or drive the car on the lift. Next, you need to set the box of the box to the neutral position and can be moved directly to the visual inspection.

Special attention should be shown, evaluating the technical condition of the glands and the hinge. Then holding the crossed hand, try to scroll through the cardan. When the backliness is found, which is very easy to notice, the item needs to be replaced. If, when you rotate the cardan, noises and symptoms are heard, most likely, the crosses itself is in order and you need to change the lubricant for the cross.

It is worth noting that there are two cruciform parts and it is necessary to inspect each. And since maximum loads are attached to the back cardan, then this cross is suffering most often. In addition, during the movement of the car, there is moisture and dirt.

As you can see, the entire Cardan inspection procedure is easy. It is possible to do it yourself. But it is better in any case, if possible, refer to a specialist, as it can give useful recommendations.

List of major faults

Usually crosses in the cardan transmission serves for a long time, and its resource is calculated by about 500 thousand km of run. However, in fact, everything is not so and the crosses after 50-100 thousand km already needed replacement. And this affects a number of factors:

• terms of Use;
• manufacturer;
• quality of materials used.

Frequent vehicles in the countryside also contribute their contribution. Dirt and bumps - all this significantly reduces the already short period of exploitation of the hinge. Here only alone lubricants for the crosses of the cardan shaft will be not enough.

The list of the most common crusades includes common inattention during the planned inspection. In some cases, the absence of lubrication does not give due value. And subsequently the Cross will give himself to know accordingly.

Among other common faults, the following cases can be distinguished:

• there is a noticeable backlash.
• the needle bearing is wearing;
• the shredinist itself occurs;
• leaving lubricant or its complete absence;
• destruction of sealing rings;
• during the movement of the car you can hear a metal ringing;
• in the area of \u200b\u200bthe Cardan Hinge, Crack is heard.

No matter how reliable crosses is, sooner or later and it fails. Concerning the best way According to the prevention of this detail - it is to conduct its inspection every 10-15 thousand miles of mileage. It will also not be prevented to make sure that lubricants for the cross.

And those motorists, in particular, who owns jeeps who love to take mud baths, check the condition cardan Transmission stands after each such trip.

Features needle bearing

In addition to the crosses, the other necessary element is also included in the cardan transmission, which is a type of roller product. His Home distinctive trait It lies in the size of the bearing, which allows you to do without an inner ring if necessary. This is achieved due to the ability to withstand a large axial load.

The use of needle bearing implies some restrictions on the use of lubricants. Solving the question of which lubricant is better, it is not allowed to use hard additions having a crystal structure. It's all about graphite or molybdenum disulfide, which are usually added to some lubricating compositions. These components can lead to a subfluous needle, which leads to elevated detail wear.

Cardana service

High-quality maintenance of the cardan transmission lies in timely lubrication of parts. Usually, for lubrication by many wizards, a special masol is used with a comfortable spout to access to hard-to-reach parts. As an alternative to this tool is the usual syringe. The lubricant itself must be high quality and only from the well-known manufacturer.

Lubricant manufacturers give their products high operational properties, including versatility. For example, product Liqui Moly. For lubrication of crossbars and bearings. For old cars, there were strict requirements regarding lubricant types. Now the situation has been fundamentally simplified. Nevertheless, it is better to acquire funds whose characteristics are best suited for lubricating the parts of the cardan shaft.

Features of the Cardan Lubrication Process

As a rule, the kardan lubrication is carried out right on the spot, that is, without removing it from the car. Theoretically there is nothing complicated here, but in reality, difficulties inevitably arise during the process. First of all, when using a syringe, a dangerous illusion can be created. The fact is that the minimum review gives rise to false feeling that the lubricant got where it is necessary, even in reality it is not. The glands should literally swim in the lubricant.

It is also not worth using a tool that is accidentally shed by inaccurability to the floor. As a result, with contact with the other surface, lubricant for the Liqui Moly crossing (or any other) loses sterility, which is unacceptable.

In most cases, the process is delayed at an indefinite period of time. Often, in the next days, the work is forgotten at all. Therefore, it is advisable to completely dismantle the connection. This will make it possible to produce a better visual diagnosis of cardan and lubricate it well. After it remains to install everything in your place.

One of the best

One of best tools The lubrication of the driven crosses is lubricant from the Liqui Moly brand. As the manufacturer itself assures, lithium-based lubricant is ideal for servicing the crosses of the cardan shaft. Also, the tool is also suitable for lubricating the bearings of sliding and rolling, which operate under normal conditions and with medium and high temperatures.

The lithium lubricant for the crosses of the cardan shaft contains special components and additives in its composition, which increases its resource. The versatility of products allows it to ensure good sealing. In addition, there are other benefits:

• increased resistance in high humidity and dust conditions;
• resistance to the effects of hot or cold water;
• the friction of lubricated parts is reduced;
• the tool is characterized by a good ability to absorb compression.

You can also highlight resistance to aging and to the occurrence of corrosion. As for the range operating temperature, then it ranges from -30 to + 125 ° C.

Blue remedy at number 158

During the USSR, the blue lubricant for Crosses "158" based on a lithium-potassium complex was in great demand. Currently, lubricants with the use of lithium thickener were produced. This made it possible to significantly increase the upper range of operating temperature, which is now + 165 ° C and more.

A characteristic distinctive feature, as can be understood, lies in the shade of lubricant at number 158. However, specifically the properties say nothing. For a number of manufacturers, this step is justified in order to identify products and give it an attractive product.

In European countries, pigments are used for this, which are stained with lubricant not in blue, but a green or red shade. Color execution may also differ if, for example, the same lubricant for driven crosses Liqui Moly ordered different suppliers.

Successful advertising

Thanks to the efforts of many marketers, the blue grease is now a sign of versatility and high quality. For the first time, the lubricant material of the blue shade was released by Exxonmobil and Chevron in the West. The product suddenly showed itself from the best side under normal working conditions of almost any equipment.

Now blue lubricants are already a standard of quality. They are especially popular in the territory Russian Federation. Find widespread use when servicing not only different types of transport (automotive, rail, water, tractor, special equipment), but also of different industrial equipment. And the question of which lubricant to syringe crosses is solved by itself.

The absence of lubricant at least in one of the bearing of the cardan shaft or when the traces of rust, water or dirt appears in the lubricant, indicates the need to inspect and repair the shaft in a specialized workshop. To avoid possible faults Cardan shafts associated with insufficient lubrication of its elements must be properly and in a timely manner all the lubricants of the shaft. Lubricate shaft follows a press oil before the safety valve is triggered in the hinge or before the appearance of lubrication from the seals.

For high-quality maintenance of cardan shafts without a syringe and lubricant, Fiol-2 would not do. A special need for syringe is experiencing shafts that are operated in heavy conditions, often in contact with water and mud. The back crosses of the rear cardan shaft is particularly affected by the specified aggressive media, as the closest is to the road surface. Many motorists do not pay due attention to the lubrication of the cardan shaft, mistakenly believing that it is enough to lubricate it once a year without removing from the car.

The grease of the crosses of the cardan shaft has its own characteristics. The main thing is that the maximum lubrication efficiency is achieved only when removing the part or the use of the adapted syringe, as the cross is located in a hard-to-reach place. An ordinary syringe can also be used, however, requires an adapter. But the adapter is not recommended, as due to a limited view and the connection between the syringe and the adapter, the lubricant is possible in an inappropriate place that creates the illusion that everything is done correctly. Lubrication must be performed until the lubricant is in all glands.

When using an adapter, a large amount of lubricant does not fall into the cross. Motorists do not always bother themselves with a campaign for an additional number of phiola, so either use that lubricant that fell to the floor, or simply leave everything as it is. At the same time, it should be remembered that it is almost impossible to estimate the condition of the crossbar without its removal. This is an additional factor in favor of what to lubricate the cross should be in the removed state, as it appears not only to lubricate, but also to evaluate the condition of the cross.

All cardan shafts have three points of the syringe. First of all, it is a maslin, which is located near the slotted connection. The remaining two points are two press oils on the crosses.

How to produce a dress of the cardan shaft? First you need to remove it and clear from the dirt of press oil. Then you can proceed to lubrication, not forgetting that an excessive application of the force here will not be the best solution. It is necessary to achieve uniform penetration of lubrication into all parts of the mechanism, and strong pressure can lead to the fact that the lubricant will only go on one way. After lubrication, you need to put the shaft vertically and slightly pressing on it so that the excess lubricant from the slotted connection came out. If this is not done, then the reverse installation of the cardan on the car will be difficult due to overpressure of lubrication.

Hello, dear friends!

Talk today about the hinge of unequal angular velocities - cardanian hinge and features of its operation. Let's start with what it represents a crossliner with needle bearings and is used in a wide variety of areas of transport and industry as a node for transmitting rotation under a variable angle.

Despite widespread dissemination, its recognizable is due to automotive applicationAfter all, everyone represents how the cardan shaft of a truck or a passenger SUV looks like, and many even remember the rear-wheel drive "classics" of the Soviet car industry.

Fig. 1 Cardan shaft. Appearance

Let me remind you that we will consider this node, as usual, in terms of the characteristics of its work and, of course, lubricants for its service.

Fig. 2 Cardan shaft cross

1 - Cross,

2 - O-ring,

3 - Radial-skid bumping seal,

4 - Needle rolling bodies,

5 - end washer,

6 - a needle bearing cup,

7 - Stop Ring

What are the features of the work of the kartanna and needle bearing in its basis?

To do this, remember that the needle bearing is a kind roller bearing, whose rolling bonds are rollers of very small diameter relative to their length. This although imposes some restrictions on lubricantsBut mostly these are ordinary lubricants for rolling bearings.

The small diameter of the needle-shaped roller only eliminates the use of lubricants with solid tribological additives having a crystal structure. The fact is that graphite or disulfide molybdenum during the operation of the needle bearing can cause a swallowing needle, leading to increased bearing wear.

The main features of the work of the driven crosses are high specific pressure due to the large transmitted torque, as well as an unstable elastohydrodynamic friction mode. Both of these circumstances predetermine the use of lubricants based on medium and highly viscous base oils 150-220 WST (at 40 ° C).

Fig. 3 crosses of the cardan shaft

Fig. 4 Needle Bearing

The most famous lubricant for crosses is lubricant №158. There is no need to represent the product surrounded by legends and endowed with non-existent advantages. What was not attributed to this ordinary from a modern point of view by autotractor lubricant. The only reasonable advantage of the 158th was that it was produced on the base oil MS-20, which is considered aviation.

I do not know how indirect affiliation to the winged technique treated this lubricant in the eyes of auto mechanics, but from all over "aviation," the base oil of MS-20 reported to it quite good viscous-temperature properties, and the kinematic viscosity 220 WST at 40 ° C - optimal viscous-loading properties. This is already later plastic lubricants with viscosity basic oil 220 CST so firmly established in the autotractor technique, which it became difficult to imagine something else.

By the way, the beautiful blue color of the 158th gives a special pigment - copper phthalocyanin, which gives lubricant some tribological properties. Alas, according to the current standards of this tribology, it is clearly not enough and modern lubricants are allocated by modern highly efficient anti-wear and non-promotional additives. And the beautiful blue color, which has become a traditional marker of universal car lubricants, is provided simply by blue dye. It does not have a functional purpose.

As an example of modern lubricant for kartan crossing, consider the popular blue in Russia car lubricant from company Argo. Here is its characteristics:

The syringe of the crosses of the cardan shaft is enough simple workwhich must be performed regularly to maintain transmission in working condition. However, many drivers decide to apply for such work at the service station, while they can be performed independently. The main thing is that it is required to perform this kind of work - it is necessary to have the necessary toolkit and choose correctly than to syringe Cardan crossflowers. As part of this article, consider this question.

What is a cardan shaft

The task of the cardan shaft is the transfer of effort from the car gearbox to the bridge.Most often it consists of two or three interconnected crossbar elements. Cross represents hinged connection, ensuring reliable mount between nodes with minimal wear during the operation of the conjugate elements.

So that the crosses fully coped with the functions assigned to it and did not lose in efficiency, it needs permanent lubrication. When the car leaves the factory, the cross is tightly stuck with a lubricant, which should be enough for a long time of operation of the mechanism, but at certain times it ends, and it is required to replenish it.

Add lubricant to the cross is simple enough, and it can be done without removing the cardan shaft through the process hole. Depending on the car model, its location may differ.

Important: Cardan shaft crosses is almost always under the influence of sand, dirt and other harmful factors. If it is used in such conditions without lubrication, it will quickly come into disrepair, so it is necessary immediately after identifying the problem of the absence or small amount of lubricant to correct the situation.

When you need to syringe the crossed of the cardan shaft

In the list of planned work on maintenance The car must be indicated the frequency of the syringe of the crosses of the cardan shaft on the recommendation of the car manufacturer. On average, the lubricant component must be updated every 10-15 thousand kilometers of the car.

Important: When operating a car in difficult conditions, a period of 10-15 thousand kilometers is significantly reduced. For example, if we are talking about a permanent road to road, take care of the lubricant of the crosses, it is necessary much more often.

There are several symptoms that indicate that it is required to conduct a syringe of the crosses of the cardan shaft:

• When moving a car from a place in the area of \u200b\u200bthe cardan shaft, noise, similar to crunch or tapping, is heard;
• At high speed (above 60 kilometers per hour), the vibration of the car and the "shaking" of Kardan is clearly noticeable.

If the above-mentioned symptoms are observed by car, it is necessary as soon as possible to conduct the syringe of the crosses of the cardan shaft.

Than to syringe the crossed of the cardan shaft

To perform work on the syringe of the Cardan Cross, it will be necessary to purchase a special tool - syringe for lubricating cardan shafts. It can be bought almost in any specialized automotive store. A similar syringe has a lever-plunger construction and is able to serve for long years.

Note: Depending on the car model, the technological hole is distinguished through which the lubricant is "poured". It is necessary to determine before buying a syringe, the glands or nipples are used because the appropriate nozzle is required.

Select a lubricant to which the syringe will be made on the basis of the manufacturer's recommendations. Most often, a specialized lubricant is used for a specific car model, and it is better to purchase it. If you download a lubricant into a crossbar, which is different from the one that is already present there, the risk of their "incompatibility" is great, which can lead to various kinds of problems.

Note: If in the instructions for technical exploitation The car is not specified, what specifically the lubricant is used to syringe the crosses of the cardan shaft, this suggests that any universal plastic lubricant is suitable.

How to syringe the crossed of the cardan shaft

To perform work on the syringe of the crosses of the cardan shaft, you will need to drive the car on the overpass and install the anti-tart stops under the wheels. Next, follow these steps:

1. Remove contamination from crossmen. It is recommended to use the carburetor cleaning agent for this. special compositions for cleaning or simply white spirit;
2. Next, press the acquired lubricant into the syringe;
3. Discover access to the shlits of crosses and, using a prepared syringe with lubricant, through the "Oil" fill the lubricant into the part.

Important: When downloading lubricants, open the "Maslenka" from two sides. You need to download lubricant on one side until the lubricant starts out on the other side, then we can assume that it is completely naked lubricant. Please note that the outdoor lubricant will differ in color.

After performing the actions described above, you can read the work completed.