Review on Sydien Pillow Block Flange Bearing by Jose Strong

These are quality bearings but they are METRIC and will NOT fit US standard steel bars. The item description says "1/2" diameter, but the buy button says "12mm". They are actually 12mm, not 1/2" (which is roughly 12.7mm). So my 1/2" steel rods need to be sanded, luckily only on the ends.