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                          Defination of Basic Hob Profiles

                          2021-11-01 11:57:49 jiangxingTools 973

                          Defination of Basic Hob Profiles

                          The basic hob profile is the normal sectional profile of an imaginary tooth rack, which meshes with the workpiece teeth under the following conditions: 

                          1), The basic profile line of the rack rolls on a defined pitch circle diameter of the workpiece. 

                          2), The pitch of the rack is equal to the pitch on the pitch circle diameter, 

                          3), Meshing with the workpiece takes place:

                          basic hob profile .png

                          Standardized basic hob profiles are shown in: DIN 3972 and DIN 58412 standard