球轴承沟曲率半径的大小和形状,对轴承的使用寿命、摩擦力矩,以及轴承装配后的接触角有直接影响。以往在轴承制造中,对球轴承内沟曲率半径和形状的测量是采用样板以露光法进行的,此法不能定量读值,只能进行估计、误差较大。 Ball bearing groove radius of curvature of the size and shape of the bearing life, friction torque, and contact angle bearing assembly has a direct impact. In the past in the manufacture of bearings, the ball bearing inner groove curvature radius and shape of the sample is measured using the method of exposure to light, this method can not quantitatively read the value, can only be estimated, the error is large.