ballnut ball replacement?

[Neil_J]

How hard is it to replace the balls in a ballnut? Is this something that only a factory can do, or could I do it in my own home?? Are oversize balls any harder to do than standard ones?

[justinm7]

I will help you. contact me

[skmetal7]

what ballscrews/ ballnuts do you have? The ones with the external tube are really easy and you can get oversize balls from toolsupply on ebay. i've never done the internal tube type, though.

[cncuser1]

I posted my experiences on it last year. I'd repeat it but i forget most details.

If the return tube is external and held in place by a screw and bracket it is doable but requires patience and steady hands.

Mine had the return tube buried in the hardened case so had to cut part of the case away with carbide embebded cutting wheels----> not fun.

I bought oversize balls, but it is really hard to know how much oversize to buy. a couple of tenths can make the differencce between functional and siezing up.

Do a search in these forums and you'll find all the details required to accomplish the task...if you dare.