Posted by Kevin on April 28, 2006 at 14:45:02:
If I cut a LH helical 12 tooth pinion having OD & PD increased by 1mm, to mesh with a standard to formula OD & PD 67 tooth gear, do I set my hobber up for the same 18 degree angle that the gear was cut at?
The gearbox center distance is 42mm, the teeth are 1 Mod.
67t gear OD = 2.850" PD= 2.773" 18 degrees helix
12t pinion OD=.614" PD=.535"
Increased by 1mm over reference OD & PD.
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