New roller spindles, Belt-grinder maintenance

A job I couldn't put off any longer...
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[@RRINTHESHOP]

Just a suggestion, on the lathe turning, on that material you need to feed much faster and cut deeper, so you get the chip to break. You will still get a good surface finish. As the diameter gets smaller increase your rpms.

[@y-notforge8913]

..That's 1 thing i like about your channels Doc. You are either trying to improve on your ability or equipment. Good job sir...

[@8023120SL]

Use metal sealed "6201 ZZ C3" bearings -they're a way better quality bearing. The number shows the size (12 x 32 x 10), ZZ indicates 2 metal seals and the C3 indicates high speed, high load rating. Koyo is an excellent brand. 2rs (rubber seals) bearings are more a standard duty thing.

[@jackdawg4579]

I find it hard to break a chip with 4140 on my little lathe, spaghetti junction. If someone would only give me a lathe with twice the grunt...