How to correctly to pick the rolling bearing horizontal lathe

the rolling bearing type variety, can consider the following factors when choose, to choose. (1) the load of intrusive, direction and nature of the ball bearing is suitable for light load, roller bearing is suitable for heavy load and impact load. When the roll axis to accept pure axial load, generally choose thrust bearing; When the roll axis to accept pure radial load, generally choose deep groove ball bearings or short cylindrical roller bearing; When roll axis to accept pure radial load, together with small axial load, can choose deep groove ball bearings, angular contact ball bearings, tapered roller bearing and self-aligning ball or spherical roller bearings; When the axial load is bigger, can choose the contact Angle of the larger angular contact ball bearings and tapered roller bearings, may choose the centripetal bearing and thrust bearing together, in the very high axial load or special requirements have larger axial rigidity is particularly appropriate. (2) promised to speed for bearing types have very big difference. General situation, conflict of small, less calorific value of the bearing, suitable for high speed. Design should strive for the rolling bearing under the condition of lower than the limit speed. (3) to accept rigid bearing load bearing ring and rolling contact elastic deformation occurs, the deformation and load into share, the resolution ratio of bearing rigidity of the intrusive. General can progress through bearing preloaded bearing rigidity; In addition, in the bearing design, consider the combination of the bearing can also be improved and the arrangement of the bearing support stiffness. (4) the heart function after the bearing of the bearing load operations, and equipment error, often because of bad production and positioning error caused by equipment. Now often causes for degree and thermal expansion and shaft, the bearing too much load, lead to early damage. Active self-aligning bearing caused by equipment error can overcome the shortcomings, so it is suitable for such use of the bearing. (5) equipment and open tapered roller bearings, needle roller bearings, etc. , to list circle separable bearing type ( The so-called separation type bearing) And convenient equipment apart. 6 stores even listed in the catalogue of horizontal lathe bearing, the market must not sell; On the other hand, while others not listed in the catalogue of bearing a lot of fruit. Therefore, should be clear whether the use of bearing easily acquired.

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