HEAD PULL : Green roller defect caused by improper machine timing; results in nick or indent of large end of radius.
端部撕扯：由于不正确的设备节奏而导致的在大端面处形成的凹刻痕状滚子毛坯缺陷。
2
3 mobile or welding positioner, such as welding roller frame, frame head and tail flip machine, rotary platform and positioner, mobile precision displacement mechanism should drive with servo motor.
The invention relates to a grinding tool for a grinding machine tool, in particular to a superfine head of a double-row tapered roller bearing outer shell.