Specification for worm gearing - Metric units Ingestion-build-177197 operating spacecraft and any objects

operating spacecraft and any objects released as part of normal operations

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2 Types of assessments

more products can be offered under this scheme so long as they are manufactured in accordance with the Guide

Specification for worm gearing - Metric units Ingestion-build-177197 operating spacecraft and any objects1 Scope This Part of BS 721 specifies the requirements for worm gearing based on axial modules. Four classes of gear are specified, which are related to function and accuracy. This Part applies to worm gearing comprising cylindrical involute helicoid worms and wormwheels conjugate thereto. It does not apply to pairs of cylindrical gears connecting non parallel axes known as crossed helical gears. Appendix A gives some typical wheel rim sections