Precision Grade = ABEC 5. Bicycle Bearings. Skateboard, Skates, Scooter. Automotive Wheel Bearings. Trailer Bearings. Wheel Bearing Hub. DG1742RSC3 Ball Bearing Genuine Koyo 17x42x13mm. POS20EC 20mm Rose Joint Male Rod End Bearing M20 Right Hand PTFE RVH.
