BS 4582-1:1970

March 1970

Standard Current

Specification for fine pitch gears (metric module) - Involute spur and helical gears

Covers gears having modules of 1 mm and less including first and second preferences. 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 give information on single flank testing, calculation of measuring pin dimensions and examples of calculations for various design conditions. Metric equivalent of BS 978-1.

Main informations

Collections

BSI English standards

Publication date

March 1970

Number of pages

29 p.

Reference

BS 4582-1:1970

ICS Codes

21.200 Gears

Print number

Sumary

Specification for fine pitch gears (metric module) - Involute spur and helical gears

Covers gears having modules of 1 mm and less including first and second preferences. 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 give information on single flank testing, calculation of measuring pin dimensions and examples of calculations for various design conditions. Metric equivalent of BS 978-1.

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