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提出一种用于球轴承和滚珠导轨的非圆形轮廓的滚道,通过改变轮廓参数,能使轴承在接触区的负荷分布最为理想。这对用减少最大接触压力的方法增加轴承受动载荷或静载荷的能力,或用减少差动滑动引起的摩擦功的方法减少能量损失提供了一种新方案。对试样和轴承的实验研究结果表明,非圆形滚道与传统的圆形滚道相比,滚动接触摩擦力可减少30％～40％,改进后向心轴承和向心推力轴承的寿命可提高60％～90％。本文还给出了按照轴承和要求选择轮廓参数的推荐值,复杂形状的滚道表面可在普通磨床上加工出来。
A non-circular profile raceway for ball bearings and ball guides is proposed. By changing the profile parameters, the bearing load distribution in the contact zone is optimal. This provides a new option for reducing the energy loss by increasing the ability of the bearing to withstand dynamic or static loads by reducing the maximum contact pressure or by reducing the frictional effort due to differential slippage. Experimental results on specimens and bearings show that non-circular raceways can reduce rolling contact friction by 30% -40% compared to conventional circular raceways, and improve the life of radial bearings and radial thrust bearings Can be increased by 60% to 90%. This article also gives the recommended values for selecting the profile parameters according to the bearings and requirements. The complex shape raceway surface can be machined on a conventional grinding machine.