The installation of linear bearing adjustment method
May 25, 2014 8:18pm CST
1, before the assembly, bearing the daub after internal must clean grease. 2, bearing pressure into the bearing seat, should use special installation tool pressure by outer end face, do not allow direct knock bearing, so as to avoid deformation. 3, guide axle load bearing, gently insert should aim at center, as shown in the figure below. Such as insert askew, can make the ball fall off, keep frame deformation. Remove SKF bearing repair, the first recorded appearance of SKF bearing, confirm the residual stock of lubricant, sampling inspection with lubricant, bearing. Common use gasoline, kerosene as a cleaning agent. Tear open come down to import bearings cleaning, clean points coarse and fine fine cleaning, respectively in the container, put a metal mesh bottom first, SKF bearing no direct contact with dirt from the container. When cleaning, if rotating the SKF bearing with dirt, can damage the bearing rolling surface, should be pay attention to. In coarse clean oil, use a brush to remove grease, adhesive, after clean, roughly into fine cleaning). Fine cleaning, SKF bearing side rotation in the cleaning of oil, while carefully cleaned. In addition, the clean oil is always kept clean. In order to determine whether removed SKF bearing can be used again, check after bearing clean, carefully check the raceway surface, rolling surface, cooperate with the state, the abrasion of cage, the increase of SKF bearing clearance, and presence of dimensional precision, abnormal falling damage. Not separated type ball bearing, the inner ring with one hand support levels, rotate the outer ring confirm whether smooth. Tapered roller bearing separation of SKF bearing, rolling body, the outer ring raceway surface can be respectively. Large imported bearing can't rotate with the hand, pay attention to check the rolling element and raceway and the appearance, such as, cage, guard the importance of SKF bearing high must check carefully. To the requirements of the rated load once confirmed the final value, you must consider SKF bearing, install the required dimension including here considering the SKF bearing installation and fixation. And matching with rated load bearing has requested, the size of the shaft. These factors help determine bearing structure and size, can also exclude some imported bearing types. In some cases, because of the space limitation even before the load rating to determine ruled out the option. If, for example, SKF bearing appearance is very narrow, the ball bearing is the only type available in this work. Or, if you must use a very small diameter of bearing box, you need to be installed on the same shaft roller bearing of two or more to achieve enough rated load. When the size of the shaft and the requirements of the SKF bearing load rating measure when there is a big difference between phase, there was another common contradiction. If shaft is big but the load is light, even the rated load is small, but also put forward an expensive, high rated load large SKF bearing, in this case, the best contact with bearing manufacturer, so as to put forward one of the most economic and efficient solution. The instance The basic working conditions. Assuming that SKF bearing applied in reducer, imported bearing must be one end of the support of about 25 mm diameter shaft, and the shaft is installed on a spur gear. Work cycle and imported SKF bearing load. Analysis and transmission gear forces work cycle show that bearing about 3/4 of the time on the radial load of 1780 n, the speed of 11000 r/min, in a quarter of the running time, SKF bearing on the radial load of 890 n, the speed of 3500 r/min. Good mesh is almost do not produce axial force, there is no diagonal mesh or other effective axial force component. Expect two direction of maximum axial force is 89 n, the large power of 89 n. Size limit. Due to the limitation of internal gear reducer design, allows the SKF bearing the largest diameter is 70 mm, maximum calculate interference degree is 6, the largest position alignment of 0, 0015. Does not require the self-aligning bearing. The environment. SKF bearing lubrication as meshing lubrication: from a large tank injection, the highest temperature is expected to 140 F. Reliability. SKF bearing to continuous work must have a good reliability, the reliable failure rate of 8%. 4, bearing load bearing seat, the rotation is not allowed to make its turn, will damage the bearings. 5, are not allowed to use check screw set on the linear bearing outer ring directly, otherwise it will occur deformation. 6, closed DiaoZhengXing and open way referring to the following installation, and then use pressure adjustment screw clearance, be careful not to make the preloading is too large. 7, linear ball bearing seat of installation. 8 and the fixed methods for linear ball bearings.