How to remove oil stains on TIMKEN bearings

TIMKEN has recently developed a new type of lubricant. In some applications, it is not possible to replenish the lubricant due to inaccessibility, or the operating environment requires very good antifouling properties. This new type of lubricant is ideal for these special situations. This solid lubricant (Solidoil) can be fully filled into the inner space of the TIMKEN bearing, enclosing the cage and rolling elements, which not only has no effect on the operation and operation of the TIMKEN bearing, but also greatly extends the service life of the TIMKEN bearing. .

The polymer material is a structure with numerous micropores that can hold up to 4 times more lubricant than usual. As the inner surface moves, the lubrication is slowly released, which ensures a balanced and consistent lubrication of each TIMKEN bearing.

The oil-filled polymer material is molded into the TIMKEN bearing. During the molding process, a very narrow gap is formed around the rolling elements and the raceway, allowing the TIMKEN bearing components to rotate freely. The oil that penetrates the gap provides good lubrication to the bearing from the beginning. This lubricant offers a number of advantages over conventional construction.

It is especially worth mentioning that, at any operating temperature, it ensures that the lubricant is evenly distributed on the surface of the TIMKEN bearing.

TIMKEN bearings are often used, oil can reduce the service life of the bearings, then how do we remove the oil on the TIMKEN bearings? The following teaches you how to easily remove the oil on the TIMKEN bearing.

Bearings hardened by soft dry oil or rust-proof paste should be immersed in hot oil of 100 ° C ~ 200 ° C, clamp the bearing with pliers, and brush the oil on the bearing with a brush. The soft dry oil or anti-rust paste is melted when heated to 100 ° C ~ 200 ° C, and is easily washed out from the gap of the bearing. Sometimes the bearing is shaken several times in the oil. Oil will also flow away from the gap.

When cleaning the radial spherical bearing of the TIMKEN bearing, the ball, the bead frame and the inner ring should be laterally turned out from the outer ring and then immersed in the hot oil. When the short cylindrical roller bearing is cleaned, the roller and the bead frame should also be cleaned. The inner ring and the outer ring are disengaged.

When hot oil is cleaned, the temperature of the oil should not exceed 20 °C.

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Five kinds of lubrication methods for imported bearings

One: bearing grease injection method:

The effect of the amount of grease on the sealing performance A large number of tests have proved that when the amount of grease is less than about 30% of the volume of the internal cavity of the imported bearing, the grease is not lost due to the fact that the grease does not reach saturation in the bearing. When the amount of grease is more than 30%, the inside of the bearing is partially saturated. When the amount of grease is 50%, the grease in the bearing is fully saturated, and the excess grease is "squeezed out". In particular, sometimes, although there are not many fat injections, the grease injection method is not standardized and scientific, resulting in uneven grease in the bearing cavity, and local saturation in the bearing may occur, resulting in early rapid "squeezing".

As for the homogenization process, it is recommended that the rotation speed be increased a little. Sealed bearing test and evaluation The test method of sealed bearing is developed for different performance characteristics and uses of sealed bearings. The focus is different, and the test content is different, but each performance test is an important special study. The content and sealing of imported bearing test and evaluation methods are also important means to verify and improve design and quality control.

1, manual lubrication

When it is found that the lubricating oil of the imported bearing is insufficient, it is the most primitive method to use the oiler to supply oil at the right time. This method is difficult to maintain a certain amount of oil, and the risk of forgetting to refuel due to negligence is large, and is usually only used in light load, low speed or intermittent motion. It is preferable to provide a dust cover or a ball valve on the oil hole, and use a felt, cotton, wool or the like as a filtering device.

2, oil pad lubrication

The oil in the oil sump is applied to the shaft diameter surface by capillary action of the oil pad. This method allows the friction surface to be kept clean, but the dust can also clog the capillary holes and cause insufficient oil supply. Oil pad lubrication is usually only 1/20 of oil lubrication.

3, oil ring lubrication

Can only be used for lubrication methods on the horizontal shaft. The oil in the oil sump is brought into the bearing by a ring that is hung on the shaft and rotatable. Suitable for medium and high speed imported bearings with shaft diameters greater than 50mm. The oil ring is preferably seamless. When the aspect ratio of the imported bearing is less than 2, only one oil ring can be used, otherwise two oil rings are required.

4, splash bearing

Lubricating oil that is splashed by the slamming of the rotating parts in the fuel tank is supplied to the inlet bearing and is suitable for bearings of higher speed.

5, oil bath lubrication

A method of lubricating a part of a bearing into a lubricating oil. This method is often used for vertical shaft thrust bearings and is not suitable for radial inlet bearings for horizontal shafts.

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