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JM Wild overhead milling / gear cutting drive motor.

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YouraT	30/10/2020 14:19:41
83 forum posts 22 photos	Hi all. I've acquired after much searching a nicely built JM Wild overhead gear cutting drive system, but minus the motor and its pulleys. I know the pulley diameters and the motor speed (1425rpm), but can anyone help with the as-designed motor rating? I'm thinking that 1/2hp would be ample for my expected worst case load of pinion cutting, but any knowledge and advice would be appreciated! Thanks, Youra.
Roderick Jenkins	30/10/2020 17:21:53
2376 forum posts 800 photos	Yours, According to Tubal Cain's book "Milling operations in the lathe" the JM Wild overhead gear used a 1/8 hp motor which TC thought a bit small for milling rather than clock gear cutting. I have used a similar arrangement with a 1/6hp induction motor that mills steel with a 1/4" cutter. HTH, Rod
YouraT	05/11/2020 22:01:07
83 forum posts 22 photos	Thanks Rob 1/6hp agrees with advice given elsewhere too - I have a slightly bigger motor to hand, and as long as it's not too heavy, I'll likely go with that. Youra.
Michael Gilligan	06/11/2020 07:27:05
23121 forum posts 1360 photos	Just for info. LINK http://www.j-m-w.co.uk/tools9.html ”. A complete construction article on this equipment commenced in the Model Engineer magazine, 20th November, 1981. “ MichaelG.

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