Posted by northerngearcutter on January 26, 2012 at 15:02:19:
In Reply to: Will a gear always mate with itself? posted by Marcus on January 26, 2012 at 14:20:48:
Hi. First things first. A spur gear has straight cut teeth, i.e it is not a helical gear. Second thing is that by introducing an idler gear you are reversing the direction of the output shaft.
Increasing the centre distance can be achieved using a different pitch, ratio or helix angle. Or a combination of these.
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