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BS 978-1:1968

Specification for fine pitch gears. - Involute spur and helical gears

Standard Details

Gears of pitch range greater than 20, up to 200 diametral pitch. Standard pitches; two basic racks (one with backlash allowance); modification of addendum and centre distance to suit various conditions. Four grades of accuracy with elemental and dual flank composite test tolerances. Appendices: single flank testing, calculation of measuring pin dimensions, calculations for various design conditions.

General Information

Status : Confirmed
Standard Type: Main
Document No: BS 978-1:1968
Document Year: 1968
Pages: 36
  • Section Volume:
  • GBM12 Mechanical Systems & Components (GMB12)

Life Cycle

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Confirmed
BS 978-1:1968

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