Specification for fine pitch gears - Cycloidal type gears
Specification for fine pitch gears - Cycloidal type gears
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What is BS 978-2 - Cycloidal gear specification about?
The cycloidal gear profile is a form of toothed gear used in mechanical clocks, rather than the involute gear form used for most other gears. BS 978 is a British Standard series that discusses specifications for fine pitch gears. BS 978-2 is the second part of the BS 978 multi-series, and applies to cycloidal type spur gears for spring or weight-driven mechanisms in which:
The pinion is the driven member The pinion is required to act sometimes as the driver and sometimes as the driven member
Note: For integrating electricity meters the particular form of gear specified herein is not necessary and it is recognized that other existing forms of gear will continue to be used.
Who is BS 978-2 - Cycloidal gear specification for?
BS 978-2 on cycloidal gear specification is useful for:
Другие стандарты BS