BS 1807 81st Edition, January 30, 1981
Marine Main Propulsion Gears and Similar Drives; Metric Module
Includes all amendments and changes through Reaffirmation Notice , 1988
Additional Comments: W/D NO S/S
Published By:British Standards Institution (BSI)
Specifies basic tooth profiles, modules and accuracy requirements for high grade gears. Applies to gears and similar drives from 2 to 25 normal module. Specifies revised accuracy classes appropriate to particular requirements of gears in service.