Fine pitch gearing usually has teeth of diametral pitch 20 to 200. BS 4582-2 discusses specifications for Fine pitch gears (metric module).
BS 4582-2 is the second part of the multi-series and specifies dimensions and accuracy requirements for the following gear cutting tools for fine pitch gears of metric module produced in accordance with the requirements of BS 4582-1.
BS 4582-2 on hobs and cutters specification is useful for:
Users of motors and components such as:
Standard pitches are usually whole numbers when measured as diametral pitch P, the ratio of the number of teeth to the pitch diameter in inches.
BS 4582-2 walks you through aspects of gear hobs for fine pitch gears such as metric module, amplification of scope, bore, and arbor, guidance on dimensions, keys, keyways, tolerances, provision of datum cylinders, as well as marking for fine pitch gears.
BS 4582-2 may also be used for cutters for gears produced in accordance with the requirements of BS 978-2 if desired.
BS 4582-2 guidelines help you to follow best practices when designing and manufacturing fine pitch gears. This lets you demonstrate the efficiency and reliability of your pitch gear cutters.