2013年12月2日星期一

Thrust ball bearing is a separate type of bearings


Thrust bearings are used exclusively dedicated bearing axial force is the force in the direction parallel to the axis of the bearing . Thrust bearings are also known as thrust bearings.
The thrust bearing is generally composed of two or more thrust washers thrust washers and several rolling slim section ball bearing body composition, general thrust washer into the shaft piece and seat piece , rolling is generally the most common type of iron or copper combined into the overall quality of the cage which is the most common type of ball bearing type thrust bearings.
Thrust ball bearing is a separate type of bearings , shaft ring , seat ring and the cage , ball component separation . Shaft ring is cooperating with the shaft collar , seat is compatible with the bearing hole ferrule , and there is a gap between the shaft ; thrust ball bearings can only bear axial load , one-way thrust ball bearings can only bear axial loads in one direction , two-way thrust ball bearings can withstand axial load in both directions ; thrust ball bearings can not restrict the shaft radial paired tapered bearing displacement , low speed limits , one-way thrust ball bearings can limit a shaft and housing the axial direction of displacement , two-way bearing to limit the axial displacement in both directions .Thrust roller bearings for axial load mainly axial , radial joint load , but the radial load should not exceed 55% of the axial load . Other thrust roller bearings, such bearings lower friction coefficient , high speed, and aligning performance . 29000 bearing stick asymmetric spherical roller , the roller can reduce the relative sliding and rolling in the work , and the roller length , large diameter roller quantity, high load capacity, usually oil lubrication , individual low speeds available greased . In the design selection , preference should be given ; 80000 Thrust cylindrical roller bearings , 90000 Thrust tapered roller bearings and needle roller thrust bearings AXK type , can withstand a one-way axial load , than the axial thrust ball bearings much greater load capacity and rigidity, axial occupy a small space. Thrust cylindrical roller bearings and thrust needle roller bearings for low speed applications , thrust tapered roller bearing speed slightly higher than the thrust cylindrical roller bearings.

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