Duncans Metal Pages
Division ratios
Last updated: 27 Sep 2017


If a gear is being cut with a dividing head, then the number of steps on the dividing head determine the numbers of teeth that can be cut on the gear.  There are ways round this, e.g. rotary table, using the dividing head to skip steps.  Presented below are the numbers which will divide into 720, although you can key in different numbers and press submit to get different results.

Number to divide into

Can be factored by: 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360

These pages are maintained by Duncan Munro.  All content on this site is Copyright ©2002-2018 Duncan Amplification.
Warning: These pages consist of images and descriptions of equipment which can reach high temperatures creating hazardous and potentially dangerous situations.  These pages should not be taken as a step by step guide on how to construct any items or carry out any particular procedure, nor should any references to safety contained herein be taken to guarantee safety in all situations.