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About This Item

 

Full Description

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.
 

Document History

  1. BS 436-4:1996


    Spur and helical gears-Definitions and allowable values of deviations relevant to corresponding flanks of gear teeth

    • Most Recent
  2. BS 436-2:1970


    Spur and helical gears-Basic rack form, modules and accuracy (1 to 50 metric module)

    • Historical Version
  3. BS 436-1:1967

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    Spur and helical gears-Basic rack form, pitches and accuracy (diametral pitch series)

    • Historical Version
  4. BS 436:1940


    Specification for machine cut gears. A. Helical and straight spur

    • Historical Version