Sliding bearing lubrication methods lubricated periodically maintenance

Good lubricating and maintenance can play bearing the highest service life.

1, grease lubrication

The lubrication is best during the equipment downtime in plan and implementation, and at the same time, regular supplement rid old grease or through old grease mouth will discharge oil out. Before joining fresh grease should note nozzle before wiped clean. If bearing box no note nozzle, should be open bearing box or cover, to take out the old grease, to clean up after supplementary same model fresh grease.

2, lubricating oil

Regular inspection lubricating oil and oil. Normally, normal oil level should be equipment oil level Windows or labeled 1/3-2/3 range. Fill oil to the oil cup shows oil level can represent oil compensating ability, while the oil level of spindle box, according to whether can satisfy the equipment operation is required. The oil cup zhongyou bits below its total volume 1/4 May consider fill oil.

Check and oil compensating method, take out a small amount of oil as samples and fresh oil, has the ability to compare the units can be considered for oily, believed to ensure oleaginous qualified. If the sample seemingly nebulee /, then may be the result of mixed with water, which you can often say oil emulsification, right now should change new lubricating oil. If the sample cheng darker color or change in the thick, then may say oil has begun carbonation, should the old oil thoroughly replacement. If possible, use fresh oil cleaning of oil. Oil changing, should ensure that new and old replacement lubricating oil, adding identical model to meet the requirements of the oil level.

Use oil bath type lubrication system, if oil temperature in 60 ℃ (140 ° F) the following, and lubricant is intact, it can replace a lubricating oil a year. If the oil temperature 60-100 ℃ (in 140 ° F) - 210 is four times a year needs to replace oil. If the oil temperature in 100 to 120 ℃ 250 ° F (210 - a month), the need to change a lubricating oil. If the oil temperature in 120 ℃ (250 ° F) above, the weekly need to replace a lubricating oil.

The correct installation and maintenance is bearing the normal operation of the important factors, meanwhile, must keep bearing cleanness. Bearing must prevent the pollution by pollutants and moisture, must have the correct installation and lubrication. In addition, when the design selected bearing series, oil seal condition, lubricants and forms of change cycle and special maintenance also played an important role, must pay attention on them.

Oil lubrication sleeve bearing commonly used lubrication methods are:

(1) manual lubrication

The lubricant in found bearing with insufficient, timely supply and this is gas is the most primitive method. This method can keep oil amount must be, because of neglect and forget to refuel, usually only a greater risk of light load, low speed or for intermittent movement occasion. Best setting on the refuelling hole, and dust cover or ball valve wool, cotton, wool, etc make filtering device.

(2) drops of oil lubrication

By the hole, from container, needle valve supply for quantitative lubricant, roughly the most classic is oil dripping oil cup. Drops of oil viscosity, bearing clearance with oil and oil hole position different a significant change. Used in circumference speed was less than 4 ~ / s light load and load bearing.

(3) oil ring lubrication

Can only used for horizontal-axis lubrication method. By hanging in the rotation axis and ring will oil pool lubricant to bearing. Apply to more than 50 trunnion the middle and high speed bearings. Oil is best seamless, ring width diameter ratio is less than 2 bearings, with only one oil rings, otherwise need two oil rings.

(4) oil rope lubrication

By oil rope capillary action and siphon oil cup role will the lubricant in leads to bearing, used in circumference speed was less than 4 ~ / s light load and load bearing. Oil rope and filter function.

(5) oil mat lubrication

Using oil mat capillary action, will the lubricant coating to oil pools trunnion surface. This method can make the friction surface often keep clean, but the dust will also supply shortage caused by blockage wool stoma. Oil mat lubrication oil quantity usually only oil lubrication 1/20.

(6) oil bath lubrication

Part of the bearings are the lubrication methods. Immersion lubricating oil This method is often used in the horizontal axis of thrust bearing, and unfavorable for horizontal-axis radial bearings.

(7) splash bearings

In the rotating parts on the tank up oil and slap splashing supply bearing, is suitable for the high speed bearings.

(8) spray lubrication

Will the friction surface atomization gush oil lubrication method, suitable for high speed bearings.

(9) pressure oil lubrication

The pressure on lubrication pump to bearing oil supply, will flow of oil recovery from bearing to oil pool to recycle, is most fuel quantity and most stable lubrication method, suitable for high-speed, overlap, important sliding bearings.