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Hopper	03/02/2023 07:42:36
7881 forum posts 397 photos	Posted by DC31k on 03/02/2023 07:20:31: Posted by Roy Birch on 02/02/2023 11:31:38: Yes that is another way but I am told it can lead to grinding pattern problems because the belt is stiffer where the teeth are and more flexible between the teeth Another option might be a poly-vee belt (non-synchronous). It varies across its width rather than around its girth which would eliminate the above issue. I use poly V belts on the old flat belt pulleys on my Drummond lathe with great success. No idea if they come in the size required for the grinder, but would certainly eliminate the possibility of toothed belt causing grinding problems. I run the poly V side on the flat pulleys as it grips better than the shiny flat outer side of the belt. Works perfectly, in fact better than any of the old leather and then later synthetic/leather composite flat belts used in past decades.
Phil P	03/02/2023 08:09:47
851 forum posts 206 photos	I have not tried using other belts on mine, but suspect they might absorb too much power from the 1/14 HP motor. The original belt is only 0.5mm thick so will easily bend around the pulleys without much effort. Phil
Martin 100	04/02/2023 11:46:32
287 forum posts 6 photos	Further to my post a few days ago, 280mm long and 10mm wide is the correct belt size …but I can’t at the moment find the supplier I used.
Roy Birch	04/02/2023 11:51:44
75 forum posts 22 photos	Yes that’s correct, when measured I get 270mm between spindles at start of adjustment and 285 at the end, it looks like I need new bearings for the spindle housing though.

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