External and internal involute spur and helical gears for use with parallel shafts, and having normal diametral pitches equal to or coarser than 20. Basic rack and tooth form; terminology and notation; first and second preference standard pitches; fundamental tolerances. Essential data to be specified on component drawings.
BS 436-1:1967
Original price was: $264.16.$132.00Current price is: $132.00.
Spur and helical gears-Basic rack form, pitches and accuracy (diametral pitch series)
BSI Group , 10/25/1967
Pages: 26
