Self-aligning roller bearing of the bearing surface must be adequate

Bearing - Comfortable and durable - Electricity department authors explain for you: on July 15, for thrust spherical roller bearing, rectangular and contact area, the bearing surface of spherical roller bearing must be adequate. In the case of thrust bearing shell shoulder diameter D should be less than the pitch diameter of the ball and a shaft shoulder diameter D a circle diameter should be greater than the distance between the ball. For the thrust roller bearing, it is recommended to use length of contact between the roller and the ring is supported by the shoulder axis and shell. The column diameter d a and d a said in bearing. Bearing seal to ensure the bearing life as long as possible, it may have to provide sealed to prevent leakage and lubricant into the dust, harmful material such as water materials such as metal particles. Seal must be free from excessive running friction and probability of attack. They also should be easy assembly and disassembly. It is necessary to choose appropriate sealing consider lubrication method for each application. Non-contact seal does not contact the shaft sealing device, such as oil tank, the baffle and the maze is available. Usually can get a satisfactory seal because of their close operation, the seal. Centrifugal force may also help prevent internal contamination and leakage of lubricants. （ 1) The effectiveness of the bearing oil seal oil seal can be gained through the following way means and small gap between the shaft and shell holes and multiple slots in any one or two shell hole and shaft surface. Due to separate use of oil tank is not in addition to the low speed, and an electric skateboards or type labyrinth seal is usually combined with oil seals. Dust entry is hampered by packing the consistency of the grease is about 200 into the groove. The smaller the gap between the shaft and shell, the greater the sealing effect. However, shaft shall not contact at runtime. The gap between the proposal. Recommended groove is about 3 to 5 mm wide, depth of about 4 to 5 mm. If can only use groove is sealed method, should be three or more grooves. Bearing comfortable and durable, )