PU10X40X12-2RS PU Covered Bearing 10x40x12mm - Sealed - Miniature Linear Motion Systems - 5/8 inch (0.625") works with Roller Hockey Rollerblades

works with Roller Hockey Rollerblades Too BRONZE Cage

Ball Bushings 30mm

8626-2RS Sealed deep groove ball bearing

this slim bearing delivers high-speed

PU10X40X12-2RS PU Covered Bearing 10x40x12mm - Sealed - Miniature Linear Motion Systems - 5/8 inch (0.625") works with Roller Hockey RollerbladesPU10X40X12 2RS Polyurethane Rubber PU10X40X12 2RS Polyurethane Rubber Bearing with tire 10x40x12mm Sealed Miniature PU10X40X12 2RS Polyurethane Rubber sealed Ball Bearing 10mm x 40mm x 12mm Polyurethane ( PU) is a new type of polymer composite materials between rubber and plastic, offering higher load bearing capacity compared to plastic, polyurethane offer superior impact resistance, while good mechanical properties. Polyurethane have better abrasion