Patent ID: 8672589
Filing Date: 2014-03-18
Classification: B23C,B23F,Y10T

Abstract:
1. A hob comprising a helical tooth profile in which a plurality of segments that cover only a limited angular range are secured to a basic body in order to form the helical tooth profile, wherein the segments are adjacent to one another in the circumferential direction of the basic body and also form rows in the longitudinal direction of the basic body, wherein each segment have a segment root and a segment profile which is arranged obliquely in the longitudinal direction on the segment root, and wherein the tooth profile has a helix pitch and the segment profile of the helix pitch is arranged in a corresponding manner on the segment root, and wherein a compensating segment is arranged at the edge of one row and has a compensating width which is correlated with the helix pitch, such that two segment roots that are adjacent to one another in the circumferential direction are arranged in an offset manner in the longitudinal direction so that their segment profiles adjoin one another in a flush manner, and wherein the segment profile or two different types of segments is arranged in a manner rotated 180 degrees with respect to a segment center (M).