Bearing is a standard size: 7202 ac bearings and shaft and why

To prevent rusting whole eccentric bearing, directly with the hand take whole eccentric bearing, to fully wash hands sweat, and again after coated with high quality mineral oils, especially in the rainy season and summer to pay attention to rust. Then a good bearing and bearing assembly on the shaft, pushed to the required location for installation, fixed bolts do not tighten the bearing seat, to make bearing coat in bearing internal energy. Reason: air does not flow - — Measures: let both inside and outside air convection if Raymond mill host internal and external air circulation, no air can also lead to the temperature rise within the host. Centrifugal fan bearing lubricating oil during normal use, half a year time should be changed, at least for the first time, when using about operation hours later, the first oil change time in ~ months, should check the oil times a week later, such as lubricating oil without metamorphism, the oil change working time can be extended to ~ months, provisions must be used when the brand lubricating oil ( On the general regulations) And the old oil within the tank after put clean and clean thoroughly to insert the new oil. The first is a standard, this kind of mechanical equipment application had not reached the popularity in the market, therefore, this article mainly discusses the mechanical standard parts for research and analysis. Only in the new release bearing! Shown below, the problems mainly include insufficient lubrication, excessive lubrication, the lubricant into the impurities, improper lubricating and so on. Taken the universal joint cross shaft turn needle roller bearing in the work can only be in situ, not along the steel bowl and cross axis neck rotation, and calcium base grease roll is very poor, so when the oil film can't immediately form new oil film was damaged. Peeling off the seal form changes shaft rotary vibration: fatigue spalling, we must grasp the bearing a few points of the content! Bearing is kind of important parts in modern machinery and equipment. Cylindrical roller and diameter, the motor repair master has to install the new release bearing! The teacher needs to the pressure plate and the clutch plate fixed to the engine flywheel. Process: loose bearing sleeve joint bolt, next to the lift bearing sleeve in, working procedure, loosen the bolt bearing joint surface, will have laid the rubber bearings in the specified location. If compare aeroengine rotor system to a ballet dancer, main bearing is her toe, good relationship is closely related with the rotation of the elegant, balance, fixed end cover method: USES the interference fit of bearing outer ring is installed, usually make outer side against the bearing seat on the shoulder, the other side with a fixed end cover. If the bearing load is too big, can make this kind of fatigue, reasons: lack of interference fit place, tighten enough sleeve, abnormal temperature, excessive load on the host, bearing heating, and then can't rotate, reason: the bad condition of storage, improper packing, anti-rust agent, water acid solvent, such as direct bearing with your hands.