How NOT to replace lathe bearings
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- čas přidán 8. 09. 2023
- My lathe WM210-V had crunchy bearings from the start, likely cause is sand blown in when the headstock was painted from inside in the factory.
Removing old bearings: • Removing mini lathe sp...
New bearings are NSK 32010 but all mini lathes are different, you'll only known which ones you need once you measure them.
My motor has 3+5 leads and no control board these days supports that so I went for the widely available 750W sewing machine servo motor. It's noisy on low RPM and speed isn't infinitely variable (adjusts in steps) but I think it'll do for now.
Use the right tools. It makes the job so much easier. Hook type spanner wrenches are not expensive and have a much better feel for what you're doing than hammering the nut using a screwdriver for a punch. The grease really need to be packing inside the bearing rather than smeared onto the outside.
great vid. thanks mister. your lathe is smooth now, strong and straight.
I have the feeling this new bearings will not live long. They don't like a heavy pre load. The slotted nuts should be adjusted carefully.
I've been testing the sewing machine motors also, they seem to work well. Keep an eye on the motor temperature though, I could find no data on how hot is too hot.
Bravo. It's allways a pleasure to watch some new enhancment. I am still struggling with my ELS for the lathe. I gave a look to your code and felt ashemed to my simple one. Like kindergarden level, ah,ah,ah.... I will try my path, but I really don't think to arrive to your level of quality. But at least for now encoder, stepper and lcd screen are working....
Here's a project idea, hack the controller for the dc brushless motor and make it controllable from the esp32 of your ELS. Re. bearings, fully sealed angular contact bearings would be a better option.
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Oh man I sympathise there!
Great Videos! They have really helped me with my MX-600 which is similar. Have you by chance figured out the gearing for a .80mm thread pitch? I want to cut M5 x .80 and can't find a gear ratio.
Как получился скол у ПБ? Большое усилие нужно было для того что-бы вытащить шпиндель? Магнит тахометра не мешал снять передний подшипник? Почему именно мотор от швейной машины? Если сдох контроллер - вместо родного можно было поставить более продвинутый, собранного в корпусе размера драйвера DM860 и с лицевой панелью как у частотника + возможность внешнего управления и включеним на заданных оборотах.
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Чего-то не хватает... или голоса, или музыки 🙂
This sewing machine motor sounds annoying. But I can imagine why you prefer it to an 3 phase motor with inverter 🤣