I just bought the 8" x 14" bench top mini-lathe $150 at a warehouse flea market, after I brought it home I cut 3/4" 316 stainless (light cuts) to test, and it seems a work horse compared to its smaller counterparts, I've done some commissioned work off of it, and I'm pretty surprised at how good this basic lathe holds up, but I'm getting a squeak in the spindle, and had to adjust the thrust nuts, it seems the nuts were too tight, after which it ran like a champ making metal wool, beautifully, when the squeak returned, so now the question is can I replace the race bearings supplied to this lathe with tapered roller bearings (preferably Timken or equivalent quality) if so, would anyone have an idea what size tapered rollers, or like bearing numbers? Also, I'd like the same for adding thrust bearings. The info of this lathe is as pictured.