BS 721-1:1963

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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.

Cross References:
BS 350
BS 436
BS 1498
BS 1916
BS 2519
BS 3013
BS 3538

Product Details

Published:

04/25/1963

ISBN(s):

0580345793

Number of Pages:

36

File Size:

1 file , 1.2 MB

Product Code(s):

00068895, 00068895, 00068895

Note:

This product is unavailable in United Kingdom