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Pratt 5" 3 jaw chuck

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sparky mike	19/08/2012 15:33:30
259 forum posts 77 photos	Hi, I have here a Pratt 3 jaw self centering lathe chuck, 5" (approx 125mm) diameter. It is in good condition, but one of the jaws has two broken teeth. I would like to use it on my Myford lathe, but would this cause a vibration? What chance is there of finding a replacement set? They are stamped with the numbers 249. When did Pratt become Pratt- Bernerd? It would be a shame to scrap it as it is fitted with the Myford backplate and the scroll and other moving parts are in very good condition. I also have here a fixed steady and catchplate. They have numbers in the castings, 74/1137 catchplate and 73/1904 steady. Are these original Myford products? Mike.
KWIL	19/08/2012 16:04:54
3681 forum posts 70 photos	Mike, 1137 is certainly a Myford number for the catchplate. 74/ does not appear anywhere on the listings I have. 73/1904 does not tie up in any way with the stedies, again with the lists I have. Try Ian at Rotagrip, they are Pratt chuck specialists. www.rotagriponline.com for a start on Monday.
David Littlewood	19/08/2012 16:22:53
533 forum posts	Good advice - I have found Rotagrip excellent at sourcing chuck jaws, and from a much wider range of chucks than that. You might find the price surprising though. BTW, for anyone who wnats to search, the correct name of the maker is Pratt Burnerd; see LINK David

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