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With SKF spherical bearing simple processing affect the life of the problem

by:Waxing     2020-10-24
Judge removing of SKF bearing can use again, check after cleaning the outer spherical bearing, carefully check the raceway surface, rolling surface, cooperate with the state, the abrasion of cage, bearing clearance whether to increase, and presence of falling damage, abnormal size precision. Non separation of small ball bearings, etc. , the inner ring with one hand flat end, rotate the outer ring confirm whether smooth. This type of bearings bearing separation, rolling body, the outer ring raceway surface can be respectively. Large bearing can't rotate with the hand, pay attention to check the rolling element and raceway surface, cage and guard surface appearance, bearing the importance of the higher, the need to be careful to check. Judge bearing can use again, according to the damage degree of SKF bearing, mechanical properties, importance, and operating conditions, the factors related to inspection cycle to decide. But check if found any of the following defects, the bearing can't continue to use, need to replace the new outer spherical bearing. 1, viscosity lubrication condition between the rolling contact surface to form a enough to separate the two surfaces of lubricating film, lubricant at normal operating temperature must keep certain minimum viscosity in order to reduce the bearing friction, high bearing life, the main factors of ring work for bearing average diameter and speed. Work viscosity lubricant in the working temperature of viscosity by working at t4 ℃ temperature and according to viscosity glue according to the temperature curve of viscosity ratio is a markers of oil film forming ability, for its speed has a great influence on bearing life, running state variation ( Temperature rise, speed is reduced, dye content increased) Outside the spherical bearing life may be big pollution, lower amplitude. 2, the correction coefficient of bearing life and influence factors analysis of correction coefficient calculation method. Analysis of all kinds of influence the correction coefficient for calculate a foundation coefficient of bearing life, make better lubrication conditions of the SKF bearing, should be greater than or equal to the viscosity ratio and not too large, or the increase of the viscosity may make the bearing working temperature. When extreme pressure additive lubricating oil should be adopted in addition the pressure between the moving surface can change the lubricating oil viscosity, the symbolic calculation method are taken into account the operating conditions ( Working temperature speed load reproduced size lubrication condition the influence of external spherical bearing life. Bearing is set up and reform, insulating cover, cover a usually covered with paper or other containers, transportation has a wooden and bamboo paper or in a time step by step. If there is a plastic sheet roll and tapered roller bearing cup. Bearing lubrication to ensure good effect. Check the lubricating oil pump in good condition, pipe flow spark specifications tank, in order to ensure oil supply. Lubricating oil is clean with no dirt, at the same time the cursor within the scope of the right time, and in the correct gear oil, about five minutes after the winter oil viscosity check, to check the oil level in the range you can run the oil slowly, said it is necessary to take the compensation level. Use bearing specification, has been playing to the outer spherical bearing life come to an end. Situation is relatively small, are generally in operation process for various reasons caused damage to bearing, serious directly to bearing damaged, reason for causing these installation and use, lubrication, the three aspects of common have SKF bearing ring gear had caused by injury, the main reason is the insufficient lubrication or a foreign body. Must first rule out the cause of the accident to solve these problems, combined with the environment, site, structure, and so on several aspects to inspect a similar accident happening again, bring unnecessary trouble.
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