Nu bearing, water pump bearing force decomposition of cases

On the cone with the advance of the distance, the greater the bearing radial internal clearance is small, can, by measuring the clearance reduction is or axial forward distance to determine the amount of interference. Wrong installation knocked bad bearing see these bad bearings, still dare to operation, so it is still visible damage, damage to those invisible to the naked eye will be taken to devices, such as bearing in use process will quickly damage and bring greater economic losses. Trimming is not sharp; ，） Bearing assembly after cooling, heating thickness direction will shrink, the need for bearing axial fastening nut or other methods, to prevent axial clearance. Pinion shaft bearing wear, bearing the CA/w journal mm, rear axle shoulder, the researchers found that the central control room for enterprises, bearing has been completely ablation, smoke was pouring from the enterprise, belongs to the serious irregularities in the production of accidents. For the choice of bearing and given full attention to maintenance, without oil bearing refers to the bearing can be without oil or oil under the condition of normal work less, rather than completely do not need to go. According to understand, tell everyone in the process of using imported bearing, when it needs to be replaced a new bearing? Can be seen from the following points: mainly imported bearing inner ring and outer ring, rolling element and cage have crack or gap on any one; Imported bearing raceway surface, guard, with significant roller card injury; Imported bearing cage wear significantly, or rivet significant relaxation; Imported bearing ring, rolling body any fracture; Import on the raceway surface, rolling element bearing has serious indentation and mark; Imported bearing inner ring diameter or outer diameter surface has obvious creep; Imported bearing raceway surface, there are rust on rolling element and injury; Due to thermal change is obvious. According to the SDH: harmonic proportion to material mixed uniformly; Deposit, bearing the warehouse should be clean, dry no repository with chemical products, relative humidity should not be more than %, stored and bearings are not allowed to fall to the ground. Bearing lubrication way: it is original manual lubrication method, under the condition of the bearing lubricating oil is insufficient, with oiler oil, lubricating oil pump with high pressure jet ten to pass through the nozzle shot into the bearing, high pressure oil into the stainless steel bearing the bearing on the other end into the oil in the tank. Theoretically impossible transmission effect, not only that, the bearing can also affect the transmission, in order to reduce the impact on the high-speed spindle bearings must implement good lubrication, some have lubrication bearing itself, called pre lubricated bearing, and most of the bearings must be lubricating oil, is responsible for running at high speed, not only because of friction increases energy consumption, more terrible is easy to damage the bearings. Bearing quality problem %) , many of them are on the market now 'treasures outside its, defeat garrulous among them', many companies tend to focus on the price when purchasing, do not take the quality, procurement to inferior bearings are often not take long before will be damaged. Mm trace sinking, belongs to the category of reasonable, transmission system, driving system, that is to say, cannot leave the bearing rotating part, also cannot leave the hole and shaft. Bearing is just like our articulation point sample, run the load for a long time will appear on the damage of bearing damage will cause mechanical equipment downtime, downtime is very serious for factory production accident, can have influence to enterprise's economy.