Active standard | Published: 31/01/1968

BS 978-1:1968

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

Available languages: English

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Detail information

Designation: BS 978-1:1968

Publication date: 31/01/1968

Pages: 36

Country: British technical standard

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Anotation

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. Status: Confirmed

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