A. Oil bath lubrication

Oil bath lubrication is the most common lubrication method, suitable for low and medium speed bearing lubrication, bearing part immersed in the groove, the lubricating oil by rotating bearing parts, and then flow back to the oil groove oil surface should be slightly lower than the center of the lowest rolling body.

B. Lubrication with oil drops

Drop oil lubrication is suitable for the bearing parts that need to be supplied with lubricating oil quantitatively. It is advisable to drop one drop of oil every 3-8 seconds. Too much oil will cause the bearing temperature to increase.

C. Circulating oil lubrication

The filtered oil is conveyed to the bearing parts by the oil pump, and then filtered and cooled by the lubricating oil after the bearing. Because circulating oil can take away a certain amount of heat to cool the bearing, this method is suitable for bearing parts with high speed.

D. Spray lubrication

Dry compressed air is mixed with lubricating oil through a sprayer to form oil mist. In the spray bearing, the airflow can effectively cool the bearing and prevent the invasion of impurities. This method is suitable for lubrication of high speed and high temperature bearing parts.

E. Spray lubrication

The high pressure oil is shot into the bearing through the nozzle with an oil pump, and the oil shot into the bearing flows into the oil groove through the other end of the bearing. When the bearing rotates at a high speed, the rolling body and the cage also form a flow of air around it at a very high rotation speed. It is difficult to send the lubricating oil to the bearing with general lubrication method. At this time, the lubricating oil must be sprayed to the bearing by high-pressure injection.

Used in some special conditions, adding a small amount of solid lubricant grease, such as add 1 of 3-5% molybdenum disulphide can reduce wear and improve the compressive strength heat-resistant ability, for high temperature, high, high vacuum, corrosion resistance, resistance to radiation, and extremely low temperature and other special conditions, the solid lubricant in engineering plastics and powder metallurgy material, Can be made into bearing parts with self-lubricating performance, such as using binder to bond solid lubricant on the raceway, cage and rolling body, forming a lubricating film, to reduce friction and wear has a certain effect.

A. Filling interval of grease

Due to the increase of mechanical action, aging and pollution, the lubrication base filled in the bearing configuration will gradually lose its lubrication performance. Therefore, lubrication rank needs to be constantly supplemented and updated. The interval time of lubricant supplement will be different due to the formation, size and speed of bearings, etc., and the approximate interval time of grease supplement is required according to the operation time. In addition, when the bearing temperature exceeds 70 ° C, every 15 ° C rise in bearing temperature, it is necessary to use grease to reduce the interval by half. Double-sided closed bearings have been loaded with grease when manufacturing, “HRB” in these products is standard grease, the total operating temperature range and other properties suitable for the specified occasions, and the amount of grease is also corresponding to the size of the bearing, the service life of grease can generally exceed the bearing life, except for special occasions, do not need to add grease.

B. Lubricating oil replacement cycle

Lubricating oil replacement cycle due to the use of different conditions and oil, generally speaking, in the operating temperature of 50℃ below, less dust in a good environment, replace once a year, when the oil temperature reaches 100℃, to 3 months or less time to replace once.

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