Description

BS 978-1 – Specification for fine pitch gears.

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.

Cross References:
BS 978:Part 2
BS 978:Part 3
BS 978:Part 5
PD 3376

Replaces BS 978:Part 1:1962.

Product Details

Published:

01/31/1968

ISBN(s):

0580000281

Number of Pages:

32

File Size:

1 file , 1.1 MB

Product Code(s):

68947, 68947, 00068947

Note:

This product is unavailable in Ukraine, Russia, Belarus