Profile Design of Hob with Protuberance

Pr r Symbols Formulas

ModuleSP0*aP0hh
POaP0P0
69,432,48,8516S

P0 S = P · m

7 11,00 – 2,8 10,30 19 P0

20° 2

812,573,2 11,73 21
914,143,6 13,17 24P10°hq

rP0 aP0 = 1,4 · m +

10 15,704,0 14,61 26sin20°
12 18,854,8 17,52 32hr= 0,4 · m

P0 aP0

14 22,00 – 5,6 20,45 37 h

aP0

16 25,136,4 23,37 42q = stock for grinding
18 28,277,2 26,30 47

aP0

20 31,42 – 8,0 29,23 52

*On request

Design of module 6 to 7 Design of module 8 to 10 Design of module 12 and over