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BS 1807 81st Edition, January 30, 1981
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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
Page Count:19
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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.