How to accurately select SKF imported bearings is crucial, the requirements from many aspects to consider its function and performance.
At present, in the industrial use of rolling bearings of various mechanical equipment, instruments, such as the market request function is increasingly strict and rapid growth, for the imported bearing requirements and functions are increasingly diverse. SKF imported bearing equipment has a crucial impact on bearing rigidity, generally speaking, in order to choose the most suitable bearing from a large number of structures and scales, this requires the research of various performance of the bearing.
The first time depends on the bearing structure is as the shaft system of bearing placement, device, the ease of opening, size and bearing market, bearing space allowed, so when choosing the import bearing, to consider the above factors. Secondly, on the one hand, the design life of various machines using bearing and various different endurance limits of bearing are compared, and on the other hand, bearing dimensions are determined. In the selection of bearings, usually tend to think only about the tired bearing life, about the aging of the grease caused by the grease life, wear, noise and other demand abundant research. In addition, according to different USES, it is necessary to select the bearing for precision, clearance, retainer structure, grease, and so on request for special planning. Secondly, there is no certain order, rules for the selection of bearings, the priority should be considered is the requirements of the bearing conditions, performance, the most direct matter, and for the actual.
For centripetal thrust type ball bearing and roller bearing, when used in pairs, it should adopt the equipment with large end face of outer ring (that is, the pressure line formed by the pressure cone tip outward), so that the equipment bearing can resist overturning torque is large, and the pre-tightening amount of its adjustment is less changed when the temperature changes.
Each SKF inlet bearing sets the shaft in one direction and in the opposite direction. This combination is mainly used for short axes. All radial bearings that can accept at least one axial load in one direction are applicable, including deep groove ball bearings and angular touch ball bearings, tapered roller bearings, and NJ type cylindrical roller bearings. When using angular touch ball bearings or tapered roller bearings, preloading may be necessary in some cases.
As for the needle roller bearing that only presses the outer ring, its outer ring wall is very thin, and it is best not to use the device method of hammer strike, because when the hammer strikes, the bearing is subjected to uneven pressure, which simply causes the local deformation of the outer ring of needle roller bearing. Press should be used to press the device. The above information is to introduce how to accurately select imported bearings
Post time: Sep-06-2019