The speed reducer upper on the main machine makes central axis rotate through shaft coupling and roller hanger rotates with central axis and rollers on the hanger roll around the inside of ring.
When this happens along a front, a roll cloud can form, often with air actually circulating along the horizontal axisof the cloud.
在这种情景发生之前,云卷往往可以形成与实际横向运动云的循环空气。
3
A method for roll angular error measurement of NC machine tool vertical axis was studied based on straightness measurement using laser interferometers system.