论文部分内容阅读
密珠轴承在光学分度头、感应分度头、同心器、陀螺测试装置等仪器上已广泛应用,它具有很高的回转精度、置中精度、方向精度和极小的晃动角,而且转动摩擦力矩小、轴起动灵活、摩损小和寿命长。一、结构与设计密珠轴承和滚动轴承一样,由内圈、外圈、滚珠、保持架所组成。内圈和外圈用轴承钢(GCr15、HRC65以上)制成。滚道为内、外圆柱面。1.滚珠的排列滚珠在聚四氟乙烯保持架中,按多头螺
Pearl ball bearings in the optical indexing head, inductive indexing head, concentric, gyro test equipment and other equipment has been widely used, it has high slew accuracy, centering accuracy, direction accuracy and minimal rocking angle, and rotation Friction torque is small, shaft start flexible, small loss and long life. First, the structure and design Pearl ball bearings and bearing the same, from the inner ring, outer ring, ball, cage composition. Inner ring and outer ring with bearing steel (GCr15, HRC65 and above) made. Raceway for the inner cylindrical surface. 1. The arrangement of the ball Ball in the Teflon cage, according to the snail