I'm trying to restore a two vintage (1940s) Delta 710 motor (1/2 HP, 1 Phase, 1725 RPM). There are felt washers on the ends of the shaft that sits on each end of the bell housing. They are 1.625"x0.75"x0.125. I can't seem to find replacements, or maybe I'm looking at the wrong place. I'm searching through McMaster's but can't seem to find the right size/material. Anybody know a source or an equivalent replacement? Thx.