🖨️ Optimized Bushing Printer Power Transmission Products by OctagonStar Linear Bearings Review

Recently ordered these bearings. I've used them but they are very noisy and seem to have more play than is required for 3D printing. Now I'm looking for better ones.

I ordered two sets of these bearings expecting that one or two might go bad but even that wasn't enough. Even after greasing, four of the twelve preserved bearings were excessively rough (none of these bearings are smooth, but at least serviceable), forcing me to reuse some of the old bearings I tried to replace the first time. Place. That's not acceptable to me.

As a reminder when I received my order, 1 of 6 bearings was defective. It was suitable for an 8mm shaft but moved heavily. I was able to squeeze it about an inch or so, but I was afraid it would start scratching the polished 8mm shank. In the same order I purchased (4) Linear Slider Ball Bearings, (4) OTRMAX 4-Piece 8mm Extended Linear Ball Bearing with Linear Sleeve rubberized on both sides. All 13 other bearings ran effortlessly on the same 8mm shaft. Clearly defective bearing.