| 摘要 |
An arrangement for high speed lap grinding ball rod ends and the like including an annular grinding wheel having an internal semicircular groove extending about its inner periphery, while the workpiece is mounted for rotation at a skewed angle to the axis of the grinding wheel and extends into the peripheral groove so as to create a form grinding action with cross grinding. Lubricant is supplied to the internal groove to provide lubricating fluid under pressure in the grind zone, trapped by an external housing surrounding the wheel, which also serves as a safety retainer therefor.
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