Insufficient Lubrication Causes TIMKEN Bearing Damage Level

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Lubrication plays an important role in the use of TIMKEN bearings. In many cases, the damage of TIMKEN bearings is caused by poor lubrication. According to statistics, about 40% of TIMKEN bearing damages are related to poor lubrication. In order to get a good lubrication method for the bearing, Eric Bearing Limited analyzed the situation and concluded that there are 11 lubrication methods for TIMKEN bearings.

1. Manual lubrication

This is the most primitive method. In the case of insufficient lubricating oil for TIMKEN bearings, use an oiler to supply oil. However, this method is difficult to maintain a certain amount of oil. It is more dangerous to forget to refuel due to negligence. It is usually only used in light-load, low-speed or intermittent sports. When it is best to operate, install a dust cap or ball valve on the refueling hole. And use felt, cotton, wool, etc. as filtering device.

2. Drop point lubrication

Usually used for light-duty and medium-duty TIMKEN bearings with a peripheral speed of less than 4~5m/s. A roughly fixed amount of lubricating oil is supplied from the container through holes, needles, valves, etc., the most classic is the oil drip cup. There are significant changes in lubricating oil viscosity, bearing clearance and oil supply hole positions.

3. Oil ring lubrication

The lubricating oil from the oil sump is brought to the TIMKEN bearing by the ring that is hung on the shaft and can rotate (only for the lubrication method of the horizontal shaft). It is suitable for medium-speed and high-speed bearings with a shaft diameter greater than 50mm. The oil ring is the best It is seamless. When the bearing width to diameter ratio is less than 2, only one oil ring can be used, otherwise two oil rings are required.

4. Oil rope lubrication

Relying on the capillary and siphon action of the wick to guide the lubricating oil in the oil cup to the bearing, it is mainly used for light-load and medium-load bearings with a peripheral speed of less than 4～5m/s. In addition, the wick can filter the whole process. The role of.

5. Oil pad lubrication

Using the capillary action of the oil cushion, the lubricating oil in the oil pool is applied to the surface of the shaft diameter. This method can keep the friction surface clean, but the dust will also block the pores and cause insufficient oil supply. The oil supply of oil pad lubrication is usually only 1/20 of oil lubrication.

6. Oil bath lubrication

This kind of lubrication method is to immerse part of the bearing in lubricating oil, which is often used for TIMKEN thrust bearings of vertical shafts, but not for radial bearings of horizontal shafts.

7. Splash lubrication

Relying on the lubricating oil splashed by the rotating parts in the oil tank to supply the bearing, it is suitable for the bearing of higher speed.