I bought a pair of THK SR15 slides off a Ebay and one of the blocks is
slides is moving rough as though it is missing some of the ball
bearings.
Can I reload the bearings here? I've seen ball bearing on sale for
reloading. Is there info on how to do this? If this is doable, where
can I look for this information and where to buy these ball bearing?
thanks
bill

A person on ebay sells balls for reloading ballscrews he has many sizes down to .00001. Measure the ones you have and see if he has some. When you get them just push the balls back in to place and leave a space the size of one ball and thats it. I had bearing blocks fall on the ground and the plastic guide cracks balls all over the shop. I just collected the balls fixed the plstic guide cleaned the balls put them back and wala works like normal.

Thanks Dennis, I'll check it out.
bill