Imported bearing on the five kinds of knowledge - bearing lubrication methods

A: bearing greasing methods: fat injection rate affect the performance of sealing a large number of trials show that, when the fat injection rate is imported bearing internal cavity volume of about 30%, due to the bearing internal fat not reached saturation state, so the leakage of grease are rare. Grease injection rate exceeds 30%, bearing internal partial saturation state, when fat injection rate reached 50%, bearing grease in total saturated state, 'squeeze' out excess fat. Pay special attention to, and sometimes although fat injection is not much, but on the way is not standard, scientific, results in uneven bearing cavity fat, also can appear within the bearing local saturation, occurred early rapid 'squeeze' the phenomenon. As for all fat process, it is recommended that the rotational speed may increase a little. Sealed bearing test and assessment of sealed bearing test method is for sealed bearing characteristics and usage of different performance, its focus is different, the content of experiment is not the same, but every performance test is an important research content, and seal imports bearing test and assessment method and verify and improve the design and quality control is very important. 1, manual lubrication found in imported bearing lubricating oil is insufficient, timely with the oiler oil supply, it is the most primitive way. This method is difficult to maintain a certain oil and a greater risk of inadvertently forgotten refueling, usually only used for light load, low speed or intermittent movement of the occasion. The best on the oil-way set dust cover or ball valve, and filter felt, cotton, wool, etc. 2, oil lubrication with oil mat of capillary effect, the grease to the diameter of axle surface in oil pools. This method can make the friction surface often keep clean, but the dust will plug wool stoma cause insufficient oil supply. Oil pad amount of lubricating oil is only 1/20 of its oil lubrication. 3, ring lubrication can only be used for horizontal spindle lubrication method. Depend on the shaft and rotating ring oil pool of lubricants to bearing. Applicable to the diameter of axle is greater than 50 mm of medium-speed and high-speed import bearings. Oil ring is seamless, best imported bearing width to diameter ratio less than 2, can use only one oil ring, otherwise need two oil ring. 4, splash bearing by panting and splash of rotating parts in the fuel tank of lube oil supply imported bearing, bearing is suitable for high speed. 5, oil bath lubrication bearing part of immersed in the lubricating oil lubrication method. This method used in the thrust bearing of vertical shaft, and should not be used for horizontal spindle radial bearing imports.