Adjust the SKF roller bearing radial clearance error precision of knowledge

SKF bearing measurement error, shall be the tolerance of less than 10%. General measurement error difference of 10% ~ 33%, and with the improvement of tolerance grade, the greater the proportion of error, that is, the smaller the tolerance, the higher the percentage of error, and the tolerance above IT5 import bearings, it is difficult to reach 10%. Measurement error does not mean test 10% tolerance can relax, but to give certain safety margin, in order to make sure the user according to the standard acceptance. Every procedure of the bearing parts processing, in order to get the size, shape and position precision of the machined surface bearing, must adjust machine tool, fixture and tools, any adjustment will inevitably bring certain error. Roller bearing parts in mechanical processing of production and processing precision often require different, have different adjustment methods. In bearing these phases in the life cycle to get the biggest SKF bearing service life is very important. Through the implementation of the correct maintenance and use of appropriate tools, you can significantly extend the service life of roller bearings, improve plant productivity and efficiency. Including temperature, noise, speed and vibration measuring instrument at run time, using the basic condition monitoring method is important to regularly inspect the status of bearings, such as temperature, vibration and noise measurement. Regular testing can find potential failure, to help prevent unplanned downtime. Can be arranged, therefore, are in conformity with the production plan of equipment maintenance plan, improve the productivity and efficiency of the factory. Commonly used bearing radial clearance adjustment method is as follows: 1, the tip clearance, circular and elliptical bearings can adopt manual crapping or when the situation allows of SKF bearing in faceted padded method of adjustment. 2, more oil wedge tilting type bearing, are not allowed to fix the tile, clearance is improper for tile should be changed. Segment of thickness is adjustable, can be adjusted through behind the tile under the block and stainless steel pads, or thinning amount adjustment method of block thickness tile. Pay attention to much oil wedge tilting type bearing, group between tile thickness error should be less than 0. 01mm。 More than 3, the oil wedge fixed bearing, in principle is not allowed to repair and adjust bearing clearance, clearance is improper new tile should be replaced. 4, for circular and elliptical bearing clearance, can use manual crapping or SKF bearing faceted padded cutting methods of scratch after adjustment