The better to lubricate the gearbox angle grinder

Lubricants of domestic manufacturers for bearings and gearboxes angle grinder

With the rise in for foreign lubricants, lubricants of domestic manufacturers have become especially in demand.

Russian lubricant manufacturers have learned to produce high-quality lubricants suitable for any tool.

Lubricants have been developed for reducers of grinders, perforators, drills.

The most popular products are Nanotech Metal Plak Electra. The range of lubricants produced by this company allows you to select the lubricant required for each unit

better, lubricate, gearbox, angle

General rules for changing lubricants

The main module of the angle grinder is the gearbox. It is this part of the angle grinder that experiences maximum stress. The block includes various elements that facilitate rotation. Once in the tool body, the substance reduces friction. The compositions used for the angle grinder gearbox reduce the temperature indicators that occur during operation.

In the course of work, the angle grinder, placed inside the lubricant mixture, gradually scatters within the body. After a while, the substance begins to dry, and lumps are formed in the work. These pieces collect dust and metal particles, so a quick replacement of the oily composition is needed. Sometimes the problem occurs due to high temperature. The grease heats up, flows out, and the gearbox remains without a protective mass. Timely replacement is important.

Grease properties

It is necessary that the lubricant composition has certain capabilities and properties. Only in this case, the protection will be complete, and the angle grinder will work for a long time. The defining technical characteristics include the following:

Harbor Fright angle grinder. gear lubrication

The lubricant should not make serifs in elements working together. When choosing a special composition, it must be remembered that there are different types of products. In order not to harm the instrument. it is recommended to first study the classification of types of lubricants.

What lubricant to lubricate the gearbox angle grinder?

Substitution rules

The main modular unit of the angle grinder is the gearbox. It takes over the bulk of the load during operation. It contains helical gears that transmit torque from the rotor to the active element. Lubrication of the gearbox of the angle grinder provides a reduction in the frictional force in the gears. And also helps to reduce the temperature that occurs during operation.

When to change the lubricant? During operation, the lubricating coating spreads out to the sides of the gearbox housing. After a short time, it begins to dry out and lumps form. Lumps can accumulate dust and metal particles generated during operation. If, when disassembling the angle grinder, lumps are found, then a new lubricant is needed for the gearbox of the angle grinder.

There are situations when it is required to replace the gearbox parts of an angle grinder or rotor bearing. In this case, it is necessary to disassemble the device. Accordingly, the lubricating layer will be removed. New material is applied instead.

During long periods of operation, the gearbox of the angle grinder heats up. Accordingly, the used coating also starts to warm up. When hot, the lubricant becomes liquid and may leak out. As a result, little remains inside it. This can be seen by looking at the gears. There should be a thick layer on them. Thus, with a small amount of lubricating coating, it is necessary to replace it.

Use of gear lubricant when servicing angle grinder

The angle grinder, like other tools used in the household and professional activities, requires regular maintenance. Operational efficiency and durability are ensured by timely service.

Angle Grinder Lubricant is the main component when servicing the device. To improve performance, choose the right formulation.

Therefore, it is better to first put in a little more material than required and make sure that the lubricant is evenly distributed after the gears of the reducer are activated. The generally accepted norm is filling with lubricant about 40% of the volume of the gearbox.

Most popular grease formulations

Foreign-made lubricants are more expensive than domestic mixtures. The Bosch brand is popular. The product is used for application on mechanisms of the same brand, as well as other models. The coating has a high technicality and technical parameters.

Quite good quality, users note in Huskey lubricants. The formulations differ in their intended use. Withstand considerable temperature. Of the domestic products, one can single out the products of the Nanotech companies. Metal Plak Electra. The mixtures have good technical characteristics and can withstand high temperature indicators.

Gearbox lubrication stage

The gearbox must be filled with such a volume of grease that it completely covers the gears.

The sufficiency of lubrication for the angle grinder gearbox is checked by switching on the angle grinder for a short time. If, within 3-5 minutes of operation, the node temperature has increased and lubricant is leaking out, part of its volume must be removed. To do this, the gearbox is disassembled again, the excess is removed with a rag or rag.

When checking, the opposite situation can be observed, when a noise appears when the angle grinder is turned on. This means that there is not enough lubricant and it needs to be added.

When using an angle grinder, a periodic check of the adequacy of lubrication of the gearbox elements, the quality of the available lubricant is required.

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To carry out routine inspections, it is necessary to unscrew the bolts tightening the cover and visually inspect every detail. If slightly dry or completely dry areas are observed, a complete replacement of the lubricant is recommended.

When to change the lubricant in an angle grinder

The timing of the next grease change depends on the load and the intensity of use of the angle grinder. Usually it is equal to 12 months. With everyday use, an angle grinder with frequent overheating, the change frequency is significantly reduced, at least to six months.

To make sure it is necessary to add a new amount of grease, the gearbox must be disassembled by unscrewing the screws on its cover. Inside is a pair of helical gears. The small one is placed on the anchor and is used to drive the large one located on the secondary shaft. A grinding or cutting disc is attached to this shaft.

During operation, the lubricant, when the gearbox moves, scatters along the walls of the housing, drying out over time and forming large lumps. The material used for a long time overheats, becomes liquid and flows out of the housing. Therefore, its volume in the gearbox decreases. If there is only a thin layer of lubricant on the gears, add lubricant.

The grease for the angle grinder must be changed if there are dried lumps on the inner walls of the gearboxes or if it is insufficient.

Old grease removal phase

Removing used grease is the first step in gearbox maintenance. It is necessary to remove the old layer for several reasons:

  • the spent lubricant is not able to perform its functions;
  • it contains small particles formed during the wear of the rubbing elements;
  • old grease will mix with new grease, because of this, the unit will not work correctly, replacement will not bring any results.

Removal of waste is carried out using disposable paper towels, rags or a piece of tissue at hand. The removed parts of the gearbox should be thoroughly washed in thinner or gasoline, and dried before installation. Residues from cleaning materials can also mix with the new grease and change its consistency, resulting in performance degradation.

Bearing grease phase

The gear bearings should be lubricated, clogging up all available free spaces. The lubricant is squeezed out of the tube until the excess flows from the back side. this serves as an indicator of the required level of filling.

Overview of lubricants for angle grinders

If you lubricate the working tool with lithol or grease, saving on materials, there is a high probability that, in the end, the equipment will refuse to work properly, no matter how high quality it is.

Foreign companies recommend to masters how to lubricate an angle grinder, offering specially developed ointments. The manufacturer strongly advises the use of the products specified in the instructions for use. On the Russian market, there are indeed such, but at a fairly high price. In this regard, the question of high-quality lubricants of a domestic manufacturer arises sharply:

  • if the original imported grease contained molybdenum, you should look for an analogue with the “MoS2” markup;
  • “NLGI2”. for industrial tools and others operating on liquids of the second viscosity class (penetration. 265-295);
  • “ISOL-XBCHB 2” for the ISO standard;
  • “DIN 51825-KPF 2 K-20” for DIN standards.

Grease properties

It is necessary that the lubricant composition has certain capabilities and properties. Only in this case, the protection will be complete, and the angle grinder will work for a long time. The defining technical characteristics include the following:

Characteristics Value
Viscosity 800 Pass
Dropping point from 120 ° С
Impurities No mechanical additives
Anti-corrosion properties The composition must protect against rust.
Melting point Over 120 ° С
Contact with water The lubricant must repel moisture.

Lubrication should not make serifs in elements that work together. When choosing a special composition, it must be remembered that there are different types of products. In order not to harm the instrument. it is recommended to first study the classification of types of lubricants.

Why lubricate the gearbox angle grinder?

During operation, the internal parts of the angle grinder experience significant friction, due to which wear occurs. Small particles of metal are scraped off, dust gets into the gearbox, all this, as it accumulates, contributes to even greater wear and overheating. Gearbox lubrication is necessary primarily to reduce the coefficient of friction. It also improves heat dissipation and binds particles. In addition, the grease increases the corrosion resistance of the metal. Over time, depending on the frequency of use, the angle grinder loses its properties, and due to the large accumulation of solid inclusions, it can, on the contrary, increase the wear rate of rubbing pairs.

Tool manufacturers indicate in the technical documentation how often maintenance of the mechanism is required. However, the given terms are quite subjective, since it all depends on how often the angle grinder is used and how dusty the air is in the room where you have to work with the device.

Homemade lubricants

If desired, you can make your own angle grinder grease. This will require a grease, for example CIATIM-221, oil (I-20 is suitable), as well as a suitable metal container for mixing and a burner.

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The manufacturing process is generally simple, but it is very difficult to obtain a uniform product. Oil is added to the grease with constant mixing and slow heating. In a successful case, a stable connection of the two components should be obtained.

The better to lubricate the gearbox angle grinder?

Today, the angle grinder is present in the arsenal of every man. However, in addition to ease of use, this device requires periodic attention to its main mechanism. the gearbox. It is important to know how and with what to lubricate the gearbox of an angle grinder in order to extend its service life.

Ready-to-use lubricants

As a rule, the manufacturer requires customers to use only their brand products for lubricating the gearboxes of the angle grinder. And this is understandable. All lubricants are rigorously tested directly at the company’s factory. The manufacturer selects the composition and manufacturing technology in such a way as to obtain a product that maximizes the life of the parts. At the same time, lubricants from tool manufacturers have a drawback. a high price.

Instead of oils directly from the manufacturer, it is quite possible to take advantage of quality alternatives. In this case, you should carefully read the required properties, which the manufacturer described in the instructions for the angle grinder. Several popular alternative brands of lubricating compounds: Haskey, Castrol, Liqui Moly, as well as the domestic offer of Nanotech.

Hitachi G12SA Angle Grinder, Gear Lube

How to lubricate properly?

Maintenance of the angle grinder gearbox is quite simple, but it is extremely important to completely clean the mechanism of old product before applying. If this is not done, then the benefits of the new composition will be minimized.

Timely maintenance of the angle grinder is the key to the durability of its internal parts.

Need for lubrication

As with any device with a motor and rotating parts, an angle grinder needs lubrication. The absence of such leads to various negative consequences:

  • Decrease in speed;
  • Overheating of equipment;
  • Overheating of the disk;
  • Deterioration of cutting properties;
  • Increased risk of accidents.

Lubrication of the angle grinder gearbox is an important contribution to the efficiency and safety of work, since it is this element that is subjected to the greatest stress. Let’s figure out how to lubricate the gearbox of an angle grinder to ensure optimal tool performance.

Before choosing which grease to lubricate the gearbox of an angle grinder, you should familiarize yourself with the general requirements for it:

  • Grease should not leak out under high loads (long-term operation). With some formulations there is such a problem. when heated, they liquefy and lose some of their properties.
  • It is advisable to choose a special lubricant, and from the company that produced the tool. On the other hand, such formulations are usually more expensive than others.
  • Environmental Safety. The claim has become popular relatively recently, but its importance is difficult to refute.
  • Avoid the use of non-specialized formulations, such as solidol or lithol, although, in theory, they can be used.
  • It is advisable to give preference to silicone-based formulations, since they have high temperature resistance and mechanical stability.

How can you lubricate the gearbox angle grinder?

The angle grinder is a popular tool used for cutting various materials. Due to its versatility, the intensity of use of the angle grinder by the average owner is quite high, which necessitates competent maintenance.

Lubricant selection

So, how to lubricate the blank reducer?

First of all, specialized formulations are recommended. Usually, such a grease has a blue color and a rather long marking, which reflects the mass of various parts: the type of additives, viscosity class, compliance with certain standards (usually ISO or DIN).

This type of lubricant is specially designed for the conditions of an angle grinder, therefore it is optimally suited to its task. When choosing which lubricant to use for the gearbox of an angle grinder, pay attention to the following parameters:

  • Maximum and minimum working temperature. The latter circumstance is especially important in the conditions of our country.
  • The presence of extreme pressure additives.
  • Slide type (in most cases, we are interested in bearing).
  • Consistency (must correspond to that recommended in the instructions for the equipment).

Please note that universal greases such as grease or lithol are not designed for the operating conditions typical of an angle grinder. In emergency circumstances, they can be used, but it is recommended to change to specialized formulations at the earliest opportunity.

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In addition, it is better to entrust the filling of the gearbox with lubricant to the specialists of specialized service centers.

When to change the lubricant in an angle grinder

The timing of the next grease change depends on the load and the intensity of use of the angle grinder. Usually it is equal to 12 months. With everyday use, an angle grinder with frequent overheating, the change frequency is significantly reduced, at least to six months.

To make sure it is necessary to add a new amount of grease, the gearbox must be disassembled by unscrewing the screws on its cover. Inside there is a pair of helical gears.

The small one is placed on the anchor and is used to drive the large one located on the secondary shaft. A grinding or cutting disc is attached to this shaft.

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During operation, the lubricant, when the gearbox moves, scatters along the walls of the housing, drying out over time and forming large lumps. The material used for a long time overheats, becomes liquid and flows out of the case.

Therefore, its volume in the gearbox decreases. If there is only a thin layer of lubricant on the gears, add lubricant.

The grease for the angle grinder must be changed if there are dried lumps on the inner walls of the gearboxes or if it is insufficient.

What, how and when to lubricate the angle grinder

Lubricant for the gearbox angle grinder: service life, the main stages of replacement. Application technology, recommended amount. Selection criteria and options, self-made lubricant.

In angle grinders (angle grinder), commonly called angle grinders, the main load falls on the gear reducer that changes the axis of rotation.

Care is required throughout the entire period of operation, since the mechanism needs to reduce friction between its interacting parts, timely maintenance.

The use of lubricant for the gearbox of the angle grinder allows not only to minimize the destructive frictional effect, but also helps to cool the tool.

Gearbox lubrication stage

The gearbox must be filled with such a volume of grease that it completely covers the gears.

The sufficiency of lubrication for the angle grinder gearbox is checked by switching on the angle grinder for a short time. If, within 3-5 minutes of operation, the node temperature has increased and lubricant is leaking out, part of its volume must be removed. To do this, the gearbox is disassembled again, the excess is removed with a rag or rag.

When checking, the opposite situation can be observed, when a noise appears when the angle grinder is turned on. This means that there is not enough lubricant and it needs to be added.

When using an angle grinder, a periodic check of the adequacy of lubrication of the gearbox elements, the quality of the available lubricant is required.

To carry out routine inspections, it is necessary to unscrew the bolts tightening the cover and visually inspect every detail. If slightly dry or completely dry areas are observed, a complete replacement of the lubricant is recommended.

Bearing grease phase

How much grease is required to replace

Therefore, it is better to first put in a little more material than required and make sure that the lubricant is evenly distributed after the gears of the reducer are activated. The generally accepted norm is filling with lubricant about 40% of the volume of the gearbox.

What kind of lubricant to choose

  • the use of expensive special lubricants for gearboxes from well-known brands;
  • the use of universal compounds suitable for any power tool;
  • gear lubrication with lithol or grease;
  • use of self-made lubricant.

Application of special materials is the optimal solution. When choosing a lubricant for a gearbox, it is recommended to give preference to compounds produced under the same brand as the angle grinder itself. For example, if the machine is of the AEG brand, then the lubricant must be bought of the same brand.

When using specialized products, the service life of the angle grinder is significantly increased, since the manufacturer takes into account all the features and nuances of operating its own equipment. The disadvantage of using branded materials is their high cost, which can affect the family budget.

Most craftsmen use budget angle grinders or Chinese-made tools. For such machines, specialized lubricants have not been developed by the manufacturer and are unlikely to ever appear. However, this technique also requires maintenance. How to proceed in this case?

Specialists and service technicians recommend purchasing any budget non-branded composition designed specifically for gearboxes. You can also use the grease used for CV joints. the hinge of front-wheel drive vehicles operated under significant loads.

Some owners of an angle grinder use only these compounds, which is why their machines cannot last for the lifetime declared by the manufacturer. In an effort to profit from the here and now, they do not factor in future spending on a new tool or replacement of expensive parts.

Old grease removal phase

Removing used grease is the first step in gearbox maintenance. It is necessary to remove the old layer for several reasons:

  • the spent lubricant is not able to perform its functions;
  • it contains small particles formed during the wear of the rubbing elements;
  • old grease will mix with new grease, because of this, the unit will not work correctly, replacement will not bring any results.

Removal of waste is carried out using disposable paper towels, rags or a piece of tissue at hand. The removed parts of the gearbox should be thoroughly washed in thinner or gasoline, and dried before installation.

Residues from cleaning materials can also mix with the new grease and change its consistency, resulting in performance degradation.