普通刚玉;
The free through-feed grinding method is adopted to grind the OD of small sized non-symmetric spherical rollers on centerless CD grinder with common corundum guide wheels, i. e. grinding slopes with same angle but different length on both sides first, then going on through-feed grinding.
采用自由贯穿磨削方法,在无心外圆磨床上用普通砂质导轮磨削小型非对称球面滚子外径,即先在圆柱滚子两端磨出角度相同但长度不同的斜度,然后进行贯穿磨削。
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