论文部分内容阅读
GB308-64(代替3722——54)滚珠轴承用钢球技术条件,规定直径3～45毫米的钢球应按图所示进行破坏试验。试验时三个钢球要求重叠在一直线上承压力,因此要求
GB308-64 (instead of 3722--54) ball bearing ball technical conditions, the provisions of 3 to 45 mm in diameter steel balls should be as shown in the destruction test. Three ball test requirements overlap in a straight line on the pressure, therefore requested