BS 978-2:1952
Current
Date published:
Specification for fine pitch gears, Cycloidal type gears
Forms and proportions of spur gears for instruments and clockwork mechanisms from 0.070 modules to 1.000 module. Provisions for contrate gears, derivation of cycloidal gears (where the wheel drives the pinions), tolerances.
Related Information
21.200 Gears
Similar Standards
-
BS 2007:1975
Specification for circular gear shaving cutters, 1 to 8 metric module, accuracy requirements
-
BS 2062-1:1959
Specification for gear hobs, Hobs for general purposes, 1 d.p. to 20 d.p. inclusive
-
BS 2062-2:1960
Specification for gear hobs, Hobs for gears for turbine reduction and similar drives
-
BS 2518-1:1954
Specification for rotary form relieved gear cutters, Diametral pitch