logo

Standards Manage Your Business

We Manage Your Standards

BSI

BS 721-1:1963

Specification for worm gearing - Imperial units

Standard Details

Cylindrical involute helicoid worms with a normal pressure angle of 20° in a range of axial modules from 0.052 in to 1 in. Design, formulae for calculating worm and wormwheel dimensions; four gear classes, with tolerances for pitch, profile and worm thread thickness, and five grades of backlash for assembly. Drawings show information to be given when ordering. Appendices: determination of load capacity, design calculations for typical gears, design procedure based on axial pitch of the worm, design of worms to suit standard diametral pitch cutting tools corresponding to the normal pitch of the worm.

General Information

Status : Confirmed
Standard Type: Main
Document No: BS 721-1:1963
Document Year: 1963
Pages: 48
  • Section Volume:
  • GBM12 Mechanical Systems & Components (GMB12)

Life Cycle

Currently Viewing

Confirmed
BS 721-1:1963
Knowledge Corner

Expand Your Knowledge and Unlock Your Learning Potential - Your One-Stop Source for Information!

© Copyright 2024 BSB Edge Private Limited.

Enquire now +