The basic code indicates the basic type of FAG bearing

Core Tip: The basic code indicates the basic type, structure and dimensions of the FAG bearing. The pre-code indicates that the bearing parts are placed before the basic code. FAG's bearing code is based on the basic code, pre-generation
  The basic code indicates the basic type, structure and size of the FAG bearing. The pre-code indicates that the bearing part is placed before the basic code. FAG's bearing code consists of the basic code, the pre-code and the post code. The basic code indicates the basic type, structure and size of the bearing. The leading code indicates that the bearing part is placed before the basic code. The post code indicates the supplemental code added after the basic code of the bearing when the bearing structure shape, size, seal, cage, tolerance, clearance, heat treatment, packaging, technical requirements, etc. are changed.
1 pre-code

The pre-code R is placed directly before the basic code of the imported bearing, and the remaining pre-codes are separated from the basic code by small dots.

GS—Thrust cylindrical roller bearing race. Example: GS.81112

K – the combination of rolling elements and cages. Example: K.81108 assembly of thrust cylindrical roller and cage.

R – without bearings that separate the inner or outer ring. Example: RNU207 - NU207 bearing without inner ring.

WS—Thrust cylindrical roller bearing shaft ring. Example: WS.81112.

2 post code

     The post code is placed after the basic code. When there are multiple sets of post code, it should be arranged from left to right in the order of the post code listed in the INA bearing code table. Some post-codes are separated from the base code by small dots.

https://www.supplyforever.com/

Importance of lubrication for IKO bearings

1. The bearing oil bath is smooth

Smooth oil bath is a common smooth way in imported bearings, suitable for the smoothness of low and medium speed bearings. The IKO bearing is partially immersed in the groove, the smooth oil is brought up by the rotating bearing parts, and then flows back to the oil groove. The oil level should be slightly lower than the center of the lowest rolling element.

2. The smooth drop of the bearing

The drip smooth is suitable for the bearing parts that need to be quantitatively supplied with smooth oil. The amount of oil dripping is preferably every 3-8 seconds. Excessive oil quantity will cause the bearing temperature to increase.

3. The bearing's circulating oil is smooth

The oil is pumped to the bearing components by an oil pump, and then filtered and cooled by the smooth oil after the IKO bearing. Because the circulating oil can take away a certain amount of heat and cool the bearing, this method is used for bearing parts with higher rotational speed.

4. The bearing spray is smooth

The use of boring shrinking air is mixed with smooth oil through a sprayer to create an oil mist. In the radial bearing, the air flow can effectively cool the bearing and prevent the intrusion of impurities. This method is suitable for the smoothness of high speed and low temperature bearing components.

5. The bearing's radiation is smooth

The low pressure oil is injected into the bearing through the nozzle by the oil pump, and the oil injected into the bearing flows into the oil groove through the other end of the bearing. When the bearing rotates at high speed, the rolling element and the cage also cause airflow around the surrounding air at a relatively high rotational speed. It is difficult to send the smooth oil to the bearing in a smooth manner. In this case, it is necessary to spray the smooth oil with low-pressure radiation. In the bearing, the position of the nozzle should be placed between the inner ring and the center of the cage.

Different IKO bearing greases are not the same in the contours of the bearings. It is necessary to form a contour that is relatively straightforward. The running time is short. In the long-term operation, the bearing temperature is low and stable. This is an ideal one. Grease, so it is especially important for the grease.

Some so-called eddy-flow greases are not easy to form contours, and even if they are contoured, they are easy to collapse. At this time, the excess grease repeatedly returned to the raceway is in a state of being strongly stirred for a long time, and the bearing torque is large and the temperature is high. Unbalanced, noise may also be generated, and grease is also prone to deterioration and loss.

For more information and purchase please visit: https://www.supplyforever.com

What problems should I pay attention to when using FAG imported bearings?

Bearings are precision parts, so they require a very cautious attitude when using them. That is, they use high-performance FAG bearings. If they are not used properly, they will not achieve the expected performance and will easily damage the bearings.

First, the following matters should be noted when using bearings:

1. Keep the bearings and their surroundings clean

Even if the smiling dust that is invisible to the naked eye enters the bearing, it will increase the wear, vibration and noise of the bearing.

2, use the installation carefully

Strong stamping is not allowed. It is not allowed to directly hit the bearing with a hammer. It is not allowed to transmit pressure through the rolling elements.

3, use appropriate and accurate installation tools

Try to use special tools and try to avoid using cloth and short fibers.

4, to prevent bearing corrosion

When taking the bearing directly by hand, wash off the sweat on your hands and apply high-quality mineral oil before handling. Pay special attention to rust prevention during the rainy season and summer.

However, under certain special operating conditions, FAG bearings can achieve longer life than traditional calculations, especially at light loads. These special operating conditions are when the rolling surfaces (tracks and rolling elements) are effectively separated by a lubricant film and the surface damage caused by contaminants is limited. In fact, under ideal conditions, so-called permanent bearing life is possible.

Second, bearing life:

The life of a rolling bearing is defined by the number of revolutions (or the number of hours of operation at a certain speed). Bearings within this life are subject to initial fatigue damage (flaking or missing) on ​​any of their bearing rings or rolling elements. However, whether in the laboratory test or in actual use, it can be clearly seen that the same bearing under the same working conditions has a different actual life. In addition, there are several different definitions of FAG imported bearings "life", one of which is the so-called "working life", which means that the actual life that a bearing can reach before it is damaged is caused by wear and damage, usually not caused by fatigue. It is caused by wear, corrosion, seal damage and other reasons.

For more information and purchase please visit: https://www.supplyforever.com

Introduce several common maintenance methods after FAG universal joint bearing damage

Usually, our FAG universal joint bearing will be seriously damaged after using it for a period of time. In this case, what should we do? We should find some common methods for daily maintenance of FAG universal joint bearings. We will introduce them today. Several so that everyone can use it later. One-third of the bearing damage is caused by fatigue damage, the other third is due to poor lubrication, and the other third is due to contaminants entering the bearing or improperly installed.

In this case, we have especially experimented with FAG universal joint bearings with increasing temperature. When inspecting FAG universal joint bearings that have been removed during regular maintenance and operation of bearing equipment and replacement of peripheral parts, it is necessary to judge sequentially. Whether secondary bearing parts can be reused and recorded better than bad. Most FAG universal joint bearings are damaged for many reasons, such as excessively small bearing clearances due to previously estimated loads, ineffective seals, and tight fits. Any of these factors have their particular type of damage and leave a special mark of damage.

For more information and purchase please visit: https://www.supplyforever.com

Requirements for cleaning up contaminated and rusted SKF bearings

Washing oil, gasoline, ethanol, dehydrated liquid, neutral or alkaline cleaning agents can be used to clean SKF bearings. However, it should be noted that "gasoline, washing oil, ethanol and dehydrated liquids are flammable; alkaline cleaners are corrosive.

The danger of burning, exploding and decomposing with hydrogen chloride-based solvent oil may also be harmful to health. When cleaning SKF bearings, use tools such as sharp brush, flat brush or fiber-free fabric. Once the solvent is evaporated, the SKF bearing is immediately coated with anti-rust oil. When SKF bearings have hardened oil or grease residues, the SKF bearings can be cleaned mechanically first and then treated with an aqueous solution of a strong alkaline material.

1. In the process of producing bearings, some enterprises did not strictly carry out anti-rust treatment on the bearing parts in the process and the assembled SKF bearing products in accordance with the requirements of cleaning anti-rust regulations and oil seal anti-rust packaging. If the ferrule has a long turnaround time during the turnaround, the outer ring of the outer ring is exposed to corrosive liquid or gas.

2. The quality of anti-rust lubricating oil and cleaning kerosene used by some enterprises in production cannot meet the requirements of process technology.

3. As the price of SKF bearing steel drops and then drops, the bearing steel material gradually declines. For example, the content of non-metallic impurities in the steel is too high (the increase in sulfur content in the steel causes the corrosion resistance of the material itself to decrease), the metallographic structure deviation, and the like. The source of bearing steel used in production companies is more complicated, and the quality of steel is even more.

4. Some enterprises have poor environmental conditions, high levels of harmful substances in the air, and too little turnover space, making it difficult to carry out effective anti-rust treatment. Coupled with the hot weather, production workers violated anti-rust procedures and other phenomena.

5, some enterprises' anti-rust paper, nylon paper (bag) and plastic cylinders and other SKF bearing packaging materials do not meet the requirements of rolling bearing oil seal anti-rust packaging is also one of the factors causing corrosion.

6. The turning allowance and grinding allowance of some SKF bearing rings are small, and the oxide scale and decarburization layer on the outer circle are not completely removed.

For more information and purchase please visit: https://www.supplyforever.com

FAG bearing inspection and cleaning method

In order to determine whether the removed FAG bearing can be reused, check the bearing after it has been cleaned. Carefully check the raceway surface, the rolling surface, the state of the mating surface, the wear of the cage, the increase in the FAG bearing clearance, and the presence or absence of damage to the dimensional accuracy. For non-separable miniature ball bearings, use one hand to support the inner ring horizontally and rotate the outer ring to check if it is smooth.

Separate bearings such as tapered roller bearings can be inspected separately for the rolling surfaces of the rolling elements and the outer ring.

Large bearings cannot be rotated by hand. Pay attention to the appearance of rolling elements, raceways, cages, and ribs. The higher the importance of bearings, the more careful inspection is required.

The judgment of whether or not to reuse is determined by considering the degree of FAG bearing damage, mechanical properties, importance, operating conditions, and the period until the next inspection. However, if you have the following defects, you can no longer use them. New bearings must be replaced.

There is a crack, or a gap, in any of the inner ring, the outer ring, the rolling element, and the cage.

There is a break in any of the ferrule and the rolling element.

There is significant slack in the raceway, ribs and rolling elements.

There are rust and damage on the raceway surface and the rolling elements.

There are severe indentations and marks on the raceway surface and rolling elements.

There is significant creep in the inner diameter surface of the inner ring or the outer diameter surface of the outer ring.

The discoloration caused by heat is obvious.

Bearings sealed with grease, seals, or dust caps are clearly damaged.

FAG bearing cleaning

When disassembling the FAG bearing for inspection, first record the appearance of the bearing, confirm the residual amount of lubricant, and after sampling the lubricant for inspection, wash the bearing. As a cleaning agent, gasoline and kerosene are commonly used. The cleaning of the removed bearing is divided into coarse cleaning and fine fine washing. In the container, the metal mesh bottom is placed first, so that the bearing does not directly contact the container. In the case of fine cleaning, if the bearing is rotated with dirt, it will damage the rolling surface of the bearing and should be noted. In the rough cleaning oil, use a brush to remove the grease and the adhesive. After it is almost clean, it is transferred to the fine wash.

For more information and purchase please visit: https://www.supplyforever.com

FAG bearing inspection and cleaning method

In order to determine whether the removed FAG bearing can be reused, check the bearing after it has been cleaned. Carefully check the raceway surface, the rolling surface, the state of the mating surface, the wear of the cage, the increase in the FAG bearing clearance, and the presence or absence of damage to the dimensional accuracy. For non-separable miniature ball bearings, use one hand to support the inner ring horizontally and rotate the outer ring to check if it is smooth.

Separate bearings such as tapered roller bearings can be inspected separately for the rolling surfaces of the rolling elements and the outer ring.

Large bearings cannot be rotated by hand. Pay attention to the appearance of rolling elements, raceways, cages, and ribs. The higher the importance of bearings, the more careful inspection is required.

The judgment of whether or not to reuse is determined by considering the degree of FAG bearing damage, mechanical properties, importance, operating conditions, and the period until the next inspection. However, if you have the following defects, you can no longer use them. New bearings must be replaced.

There is a crack, or a gap, in any of the inner ring, the outer ring, the rolling element, and the cage.

There is a break in any of the ferrule and the rolling element.

There is significant slack in the raceway, ribs and rolling elements.

There are rust and damage on the raceway surface and the rolling elements.

There are severe indentations and marks on the raceway surface and rolling elements.

There is significant creep in the inner diameter surface of the inner ring or the outer diameter surface of the outer ring.

The discoloration caused by heat is obvious.

Bearings sealed with grease, seals, or dust caps are clearly damaged.

FAG bearing cleaning

When disassembling the FAG bearing for inspection, first record the appearance of the bearing, confirm the residual amount of lubricant, and after sampling the lubricant for inspection, wash the bearing. As a cleaning agent, gasoline and kerosene are commonly used. The cleaning of the removed bearing is divided into coarse cleaning and fine fine washing. In the container, the metal mesh bottom is placed first, so that the bearing does not directly contact the container. In the case of fine cleaning, if the bearing is rotated with dirt, it will damage the rolling surface of the bearing and should be noted. In the rough cleaning oil, use a brush to remove the grease and the adhesive. After it is almost clean, it is transferred to the fine wash.

For more information and purchase please visit: https://www.supplyforever.com