1.L. Litvin grindable worm with new HOLLW flank worm tooth form is presented in this paper and the worm is grinded with a grinding wheel that the grinding wheelarbor crossed at right angle to the shaft of grinded worm.
2.The parper presents its working principle and theory as well as the way to realize the wheel boss location deviation separation by multi-circle detection with a single measuring head along with the compensation technology for the pitch deviation of a rolling ball screw arbor.
