Hello,
These darn handy linear bearing rails are very hard to come by here in NZ, I managed to spot some odd ones in one of my CNC parts hunting excursions. They were buried inside some type of machine half stripped of other goodies. But..
One of them has a few missing bearings, I know this because I might have been the cause for them to go missingwhile "playing" opps, popped off end, and scatter on floor go precious 2mm bearings.
After using a magnet to find as many as possible, and filling the little thing up again, and it running on the track very roughly, and opps, popping it off the end again, loosing bearings.....
I measured the bearings, and they're just under 2mm from memory. I have some exactly 2mm ones, which I tried, but it dosent like them, you can feel the 0.03mm larger bearings trying to slide on the undersized track.
There is THK RSR 9 on the side, with some other numbers, (5D01) and on top (A5HIII).. The bearing slide holder unit is 27x20x8mm, and the rails are 5.5x9x195mm, I can find these on THK website.
I went to a local bearing supplier, and he cannot get new bearings, but did offer me a similar THK product (alittle larger) for NZ$1000 for 4x 200mm long units.. price... ouch... ouch again...!
Has anyone heard of these THK's and anyone know how I might be able to get some (6?) odd just under 2mm replacement ball bearings?
I don't really know if I'll end up using them on my 5 axis machine, as they're a bit short, and a bit small I think for the load I'm going to place on them, but they may come in useful for a smaller machine.
Cheers
Tony