Custom Cut Length Linear Rail 6mm, 8mm, 10mm, 12mm, 16mm, 20mm, 25mm, 30mm, and 35mm Diameter Bearing Rod for Linear Motion; Hardened Steel, Chrome Plated (6mm Diameter, 25mm-250mm Length)

I needed to replace the bearing and axle shaft on an old bike trainer stand, and the original vendor has been out of business for 20 years. When I measured the old bearings and axle, they were stock metric sizes, and this rod matched up perfectly with new bearings. This is a quality product offered at an exceptionally good price.

I ordered the 20mm rod just under 1m in length. This is nice hard, chromed shafting. I mic'd it out and it was perfect, though I did not go crazy measuring the rods, they work very well with my LM20UU long bearings. I really like the cut to length option. The ends are not turned, but arrived nicely cut with what looks like a cooled (no heat discoloration) abbrasive saw. The ends are very nicely beveled and there are no burs or sharp edges on the rods. I added a picture of the ends as cut, as I was very happy with the quality of the cut to length servicePackaging and shipping were excellent and nicely protected the rods from the abusive handling packages seem to see in shipping.

Both rods were straight, smooth, and precise in length. Being able to order a custom length saved me a lot of time. Most 12MM rods are of some standard lengths, and require cutting to fit the project. Great buy, and nearly the same price as standard length rods of the same (near same) length.

Exactly as advertised. Fits my Thompson bearings perfectly

Excellent customer service, perfect motion rod! You can bet your tuchus I will be ordering again from PDtech when I need more rods!Thanks!

This is very hard material. If you intend on drilling holes you need to have very specific equipment. (EDM, diamond cutting drill, etc) Normal equipment is not going to work.

great quality rods custom cut and shipped out in no time at all. they measure perfect from end to end and even standard quality bearings run great on them. match them to a set of nippon bearings and you have a smooth and near stealthy setup.

I put these on a Prusa Tall Bear since I needed non-standard 422mm z-rods The rods are really very nice and meet the advertised specs. Having them cut to any desired length is a big plus. I also ordered their bearings but these weren't that good; too much slop allowed the extruder to twist a little bit on the x-axis and misalign prints. I would buy these again, just not their bearings