【 Jiaxing bearing 】 Consideration when choosing the bearing type

Jiaxing bearing group sales co. , LTD is bearing factory in jiaxing at the center of the province set up a spot directly, inventory sufficient, specializing in HRB bearing brand, service users, professional engineer to solve technical problems for the user, today for everyone to introduce considerations in choosing the bearing type. Of bearing load bearing load size, direction and nature, is to choose the main basis of bearing type. Choose according to the size of the load bearing type, due to the main roller bearing is line contact between components, appropriate is used to bear a larger load, bearing after deformation is small. Which is point contact ball bearing, appropriate is used to bear the load of light or medium, so the load is small, should first choose ball bearing. Choose according to the direction of the load bearing type, for pure axial load, the general selection of thrust bearing. Pure axial load can choose smaller thrust ball bearing; The larger pure axial load can choose thrust roller bearings. For pure radial load, generally choose deep groove ball bearing, cylindrical roller bearing or needle roller bearing. When the bearings in bear radial load R at the same time, there are not large axial load, A deep groove ball bearings or optional contact Angle of angular contact ball bearing or tapered roller bearing; When the axial load is bigger, can choose contact Angle is larger or tapered roller bearings, angular contact ball bearing or using the centripetal bearing and thrust bearing structure together, bear radial load and axial load. The speed of the bearing under the general speed, speed the impact the choice of the type is not what happens, only if the speed is high, just can have more significant effect. Bearing samples on the various types, various size bearing limit speed. This limit rotational speed is refers to the load is not too big, P≤ 0. 1 C, C as the basic dynamic load rating) Normal, cooling conditions, and the level of zero tolerance when bearing the maximum allowable speed. But, because of the limit speed is mainly restricted by working temperature rise, therefore, cannot think limit rotational speed is a absolutely not in the samples beyond boundaries. If the bearing work speed exceeds limit speed, can adopt the following article 5 of the measures. From the speed of the bearing requirement, can determine the following: 1) Ball bearing and roller bearing, compared with the limit of the high speed, so the priority is at a high speed ball bearing; 2) Under the condition of inner diameter of the same, the smaller the diameter, the light is small, the roller bearings rolling body when working on their path of centrifugal inertial force is small, and thus is more suitable for use in work under the higher speed. In high speed, appropriate chooses super light, light, and light series of bearing. Heavy and heavy series of bearings, only for the occasions of low speed and heavy loading. Light such as a series of bearing and the bearing capacity can not meet the requirements, can consider to use wide range of bearings, or put the two light series of bearings and used together. 3) Cage has enormous influence on the material and structure of bearing rotating speed. Entities cage than punching cage allows for a higher speed. 4) Thrust bearing limit rotational speed is very low. When work high speed, if the axial load is not very big, can use pure angular contact ball bearing axial force. 5) If working speed slightly more than the limit specified in the sample, can be used to improve the bearing tolerance grade, or appropriately increasing bearing radial clearance, choose circulation lubrication or oil mist lubrication, strengthen the cooling of the circulating oil and other measures to improve the bearing performance. If the working speed exceed limit rotational speed is more, should choose a special high speed rolling bearing. Of bearing performance when the centerline of shaft and bearing seat centerline don't overlap and the Angle error, or because of the axial force and bending or tilt, will cause the bearing inner and outer axis tilt. At this time, should adopt a self-aligning properties of self-aligning ball bearings or spherical roller bearings. Axis, this kind of bearing outer ring have not relative deflection can still work normally. Cylindrical roller bearings and needle roller bearing deflection of bearing is most sensitive to this kind of bearing in the condition of deflection of bearing capacity may be lower than ball bearings. Stiffness of the shaft and bearing hole of the bearing stiffness is lower, should try to avoid using this type of bearing. Bearing installation and disassembly is convenient for installation and select one of the factors should be considered when the bearing type. In bearing no subdivision surface and must be installed along the axial and removing bearing parts, should first choose inside and outside the circle of separable bearing ( Such as N0000, NA0000, 30000) 。 When bearing installed on the long axis, to facilitate disassembly, can choose them circle hole for 1:12 cone hole ( To install on the adapter bushing) The bearings. To choose jiaxing bearing, you can click on the right side of the online consulting, or call, we will serve you wholeheartedly. - - - Editor: jiaxing bearing group 01 sales consultant LTD. All rights reserved, HRB bearing) Reprint please indicate the source