100 3/32" Inch Chrome Steel Bearing Balls G25 | AISI 52100 Precision Hardened Steel Balls for Bearings & Industrial Applications

I bought these as a replacement for the ball bearing in my craftsman ratchet wrench. Worked perfect.

We needed some bearings to repair a 3D printer after I accidentally knocked a few out and lost them. These were recommended as the correct size, and they fit and work perfectly with our Bambu Lab A1. Very happy with the purchase and would gladly recommend them to anyone needing replacements.

Worked great

I took the time to disassemble the rails and the carriage, and clean everything completely.Out of the box 2 of the carriages were very tight and would hang sometimes. one was a bit looser but would also hang occasionally. So after disassembly and cleaning with Isopropyl alcohol.With these rails i ordered some spare bearings (amazon.com/dp/B015RKOZ7G) in-case they were needed and they were certainly useful. I however didn't fully replace all of the bearings in the end because that made the carriage too loose. What i ended up doing was replacing half of the bearings on just one side and that made these tight rails butter smooth.I also did end up swapping some of the carriages to different rails to improve things. In the end all of my rails are now super smooth and great!

I recently bought an inexpensive set of linear rails. Based on the various YouTube evaluations of the these Chinese manufactured rails, the biggest problem (besides the nasty grease they pack them with) is the inconsistent ball bearing size and quality. These ball bearings are an inexpensive upgrade to your linear rails. Clean out the block, pull out the old ball bearings and reinstall with these bearings and a small amount of Super Lube 92003. A reasonable cost rail upgrade!Like this review? Please click "helpful" below

bought 2 cheap linear rails, neither moved unless fully vertical. even then you'd need to flick the carriage as they'd catch halfway through. saw a youtube video suggesting to clean the grease out and swap the bearings with these. I did just that, then greased them up with some superlube. they function perfectly now. any slight incline and the carriage shoots across the rail. the rails took 33 bearings each side, so I needed two packs for 2 rails. worth noting if you're buying for a few.

These bearing balls are actually 3/32". I measured most of them by hand and they were accurate down to .01mm, so I'm happy. I used them to replace the cheap bearings in my linear rails and they work great for the price.I just had a set from another seller for being .20mm larger than 3/32". Seems like a lot of sellers aren't very truthful with the quality of their products. Luckily, these are exactly as advertised.

Great quality, not sure if I received 100pc as it does not look like it, but these are very small and looks can be deceiving and I am also not about to sit and count 100 of these tiny balls. I only needed one, but this was all I can find. It worked for my application very well and I am happy to recommend these to anyone.