How to choose a lubricant for a grinder gearbox?

Angle grinder is an uncommon and rare name. You may not immediately understand what it is about. But "Bulgarian" is a much more familiar word. Many craftsmen are used to working with a grinder. The technique copes well with grinding, cuts metal, plastic and stone products.

Both domestic and foreign models of grinders are presented on the modern market. She, like any tool, requires careful handling and care. If you choose the right tool, you can significantly extend the life of the tool. Let's figure out how to do this, as well as what is important to pay attention to.

Manufacturers of grinders, hammer drills, drills and other electrical equipment, creating a mechanism with moving parts that rub against each other, apply a special mass to them. Their internal composition may differ from each other. Therefore, when thinking about how to process the mechanism, you need to look at the operating instructions for this power tool. There it may be written what exactly needs to be applied to gears and other parts.

As you know, such tools work under heavy loads, because of this, the mechanism can get very hot. These substances prevent technology from failing prematurely. The components that make up the lubricant reject heat from the rubbing elements. They can also prevent the metal from rusting. With the help of these products, it is possible to increase the work of equipment for a long time.

The main working link of the grinder is the gearbox. It is a piece made up of gears. The rotor provides rotation of the tool. In this case, the small gear transmits the torque to the large gear.

This liquid in this place is designed to reduce the force that occurs during friction, as well as to reduce the heating temperature. In addition to gears, it is desirable to process bearings..

The mixtures used must be free of mechanical impurities, resist corrosion, adhere firmly to parts, repel water and any moisture, and do not melt when the temperature rises. The motor and gearbox have different bearings. Because of this, the lubricant for them is also different.... After all, the working conditions are different.

Brand manufacturers of angle grinders are also involved in the production of the mass with which their products are processed. It is very convenient. Indeed, complete with the tool, you can immediately purchase quality products for its care. The manufacturer guarantees the quality of the product. All the necessary characteristics of lubricating mixtures are thought out and correctly selected.

Some manufacturers reinsured themselves and foresaw the moment that the buyer can choose not a branded lubricant, but a cheaper product and under a different name. In such a case, the manufacturers do not give a guarantee, and in the event of a breakdown, repairs will not be made.

Many users consider branded products to be expensive and prefer car products.At first glance, there will be no changes in the work. But experts point out that after a certain time, this leads to wear of parts and you will have to pay not for lubrication, but for new parts for the tool.

Tips on choosing a liquid will help you purchase a quality and suitable product. The peculiarity of foreign manufacturers is that they use ointments as the basis for their products. Such masses have a special development technology. All types of liquids have different markings. Combinations of letters and numbers encrypted certain characteristics.

For example, one of the most expensive imported ointments has the following characteristics:

• used for molybdenum;
• has the second class in viscous properties;
• retained ISO standards;
• in the process of developing the grease, the German DIN standards were applied;
• belongs to type K.

You will have to pay dearly for a lubricant with such characteristics. It is called "Makita"... You can buy it in tubes. The advantage of the high price can be considered the quality and duration of use. Therefore, cheaper lubricants are also presented on the Russian market. High prices for lubricants from a foreign manufacturer have increased interest in domestic products.

Russian liquids are suitable for different types of instruments and are not inferior in quality. Rotary hammers, drills, gearboxes - they all have their own types of lubricants.

Lithium greases have good reviews... They are good at repelling water and are also designed to work at different temperatures. Organic and inorganic ingredients help thicken.

Tsiatim-203 used for closed types of bearings. It is better not to lubricate other bearings with them.

There are also pigment lubricants, they differ in their color. There is blue and dark purple VNIINP greases... You will have to pay more for the first option than for the second. Therefore, they buy it less often. Although the product quality is pretty good and well worth the money spent.

Greases for gearboxes and bearings (eg bevel gears) differ in properties. Bearing materials must have increased adhesion. It is necessary that the lubricant firmly adheres to the gear teeth during operation. The gearbox is spray lubricated.

Suspended lubricants form a kind of fog during operation. In addition to adhesion, there must be other qualities. For example, the high temperature resistance of the lubricant is important. It should withstand high temperatures without problems and not melt under them.

You can make lubrication with your own hands or do it in special workshops. You should be aware that when processing any instrument, an inappropriate fluid can lead to incorrect operation of that very instrument. Before applying new grease, the old one must be completely removed. The mechanism must be completely free of old grease.

Instructions on how to lubricate the grinder gearbox:

• disassemble the tool;
• wash the necessary gearbox parts with gasoline;
• wait until the gasoline is dry;
• beat the grease;
• coat the bearing and gears with grease;
• reassemble the grinder in the reverse order.

It is not necessary to apply a lot of funds to the parts, it is necessary to lay exactly as much mass as prescribed in the instructions. If you overdo it with the amount, the product will start to flow out when the tool is running. The gearbox will malfunction and function with difficulty. This will lead to its rapid breakdown.

They apply grease to the nodes for a reason. It is necessary to correctly determine where to apply it, in what order to do it, as well as how much lubricant mixture is needed.There is a maintenance plan for the grinder. It clearly states when to change the lubricant. This is usually done when parts break or fail.

Old grease can be identified by its appearance, it has a dirty dark color. This is caused by particles of dust, metal that get into the lubricant during the work. The outdated mix is ​​usually changed. At the same time, no traces of old lubricant should remain on the parts.... And if the reason was a breakdown of the part, then you need to carefully remove all the destroyed particles that could remain in the sections of the case.

The bearings should be lubricated, as if stuffing. Lubricants are simply squeezed out of the tube until they flow from the opposite side. Everyone is interested in how much lubricant should be. When applied to bearings, the amount of grease is controlled by the outflow.

But with the gearbox, the situation is different. There are certain norms for him. After all, if you overdo it with lubricants, they will leak out during operation. But an insufficient amount will not bring good results when working with your technique.

An amount of grease is poured into the gearbox, which completely covers the gears... It is very easy to control the correctness of application. To do this, you just need to turn on the assembled grinder for a short period of time. If in a couple of minutes the gearbox became hot, a leaky mass appeared, then the quantity was clearly overdone... In this case, you need to reduce its amount. To do this, you just need to disassemble the gearbox and somehow remove excess grease.

And here if a loud noise appears when turning on the grinder, then the amount of lubricant is insufficient, and this point will also have to be corrected. It can lose its properties with prolonged use of the grinder. From time to time you need to check its quality. To do this, open the gearbox cover and inspect the part. If you can see dry or slightly dried areas of the lubricant, this means that you need to replace it.

Often there are situations when the grinder requires an urgent replacement of the lubricant. In this case, the desired mixture may simply not be at hand, and there is no time to go for new lubricant. Here are the craftsmen and figured out how to get out of this situation. Many craftsmen make lubricant mixtures with their own hands. At the same time, they manage to meet all the necessary lubrication requirements.

Automotive lubricants are predominantly used for high adhesion. They create the foundation. Liquid oils are added to achieve the desired consistency. At this stage, the main thing is not to rush. The oil is added dropwise and mixed thoroughly. The resulting mixtures are no worse than those sold in stores and markets.

The choice of lubricants is very diverse. You can choose both cheap and expensive, both domestic and foreign, you can give preference to the grease of the same name (the name is the same as for angle grinders). The choice is always up to the owner of the equipment. It is up to him to decide how long the grinder will last and how much time he is ready to devote to caring for her.

For information on how to make your own lubricant for the grinder gearbox, see the next video.