Re: Ballscrew conversion

> I have been buying HIWIN 25mm oversize preloaded ballscrews.
> They come as a single 25mm x 5mm x 2.5 meter length with 2 nuts.
> I cut them to one 1.8 meter length and therefore have a 0.7
> meter screw with nut left. I have one now and should have
> another very soon. I wanted to save them as spares but
> I doubt if I could get the nuts transferred to another
> screw with out loosing the balls.

Transferring the nuts is not that hard. The way the McMaster screws come is
as a separate screw and nut. The nut is preloaded with balls and has a
cardboard sleeve that is about equal in diameter to the root diameter of the
ball screw. To put it on the screw you just put the nut assembly with the
sleeve against the screw and push in allowing the sleeve to be displaced
until the balls engage and then just turn the nut until it is on the screw
and the sleeve is completely pushed out. To take a nut off you reverse the
process. You could just as well use a wood dowel or anything else that is
the correct diameter.

Tim
[Denver, CO]