BS 978-1:1968

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

STANDARD published on 31.1.1968

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The information about the standard:

Designation standards: BS 978-1:1968
Publication date standards: 31.1.1968
The number of pages: 36
Approximate weight : 108 g (0.24 lbs)
Country: British technical standard
Category: Technical standards BS

Annotation of standard text BS 978-1:1968 :

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