Bearing lubrication purpose and the relationship between the bearing life

Bearing ( 轴承) Basic is divided into the fatigue life, the life of a use ( 使用) Life, wear and tear, A basic type of component failure) Life, failure life. 1. The fatigue life ( 一生) : limits of bearing the main moving parts material, cause bearing failure before the total time. Dynamic load rating: when life expectancy of 10000 RPM, bearing can bear the load. Such as cross section thin-walled bearing has realized the extremely thin cross section of the bearing, also has realized the product miniaturization, lightweight. The diversity of products extends its application scope. It is generally divided into glue sealing - RS, iron seal - ZZ, plane, canvas - K, copper - M。 Equivalent dynamic load refers to the actual load bearing according to the dynamic load operation conditions were determined, 挑剑) Convert the assumed load. 2. To use ( 使用) : life is the life of three kinds of general formulation, it refers to the fatigue life of bearing in theory, under normal conditions of use of bearing wear life, in the condition of abnormal, manufacturing ( zhì zào) No defect, on behalf of the failure life. 3. Wear and tear, A basic type of component failure) Life: bearing due to normal wear and tear, clearance increases to the cumulative working hours before the limit prescribed. In terms of today's bearing industrial level, should wear life & gt; Fatigue life, but actually, traction motor is just the opposite. 4. Failure ( 错误) Loss of life: the malfunction of the bearing is working, 工作) Cumulative working hours before ability. Thin wall bearing manufacturer for bearing low friction torque, high rigidity, good rotation accuracy, using the small diameter steel ball. The use of hollow shaft, ensure the lightweight and wiring of the space. Thin wall type bearing has realized the extremely thin cross section of the bearing, also has realized the product miniaturization, lightweight. The diversity of products extends its application scope. Then the bearing lubrication ( lubrication) And what is the relationship between bearing life, look at the purpose of the bearing lubrication everybody: bearing lubrication purpose: 1. Extend the fatigue life. Bearing ( 轴承) Fatigue life of rolling, in the rotation, good lubrication performance of the rolling contact surface, are extended. This is the biggest benefit lubricated bearing, can increase the fatigue life, extend the life of the bearing. 2. Reduce friction and friction losses. In a bearing ( 轴承) The ring, rolling body and touch each other part of the retainer, prevent ( fáng zhǐ) Metal contact, reduce friction and wear. 3. Discharge frictional heat, cooling, 冷却) Circulation method to oil and so on can oil discharge by the friction heat, or by an external sound of heat, cooling. To prevent ( fáng zhǐ) Bearing overheating, prevent lubrication ( lubrication) Aging oil itself. 4. Other colleagues lubricated bearing into bearing internal also have to check a foreign body, or prevent bearing rust, corrosion, Definition: refers to decay and disappear, erosion, etc. ) The effect of ( 效果) 。 In an article: the method of bearing lubrication next article: bearing clearance