The Lord of the Tools 2Pcs Ball Bearings Pulley Bearings 20x30x30mm for Bicycle Roller Skateboard

Suitable for bicycle wheel sets, pulley systems and skateboard bearings, easy to replace and maintain. The bearing size is 20x30x30mm, suitable for a variety of bicycle, pulley and skateboard parts. Made of wear-resistant and corrosion-resistant steel to ensure bearing durability and long-term stability. Precision ball structure reduces friction, improves operating efficiency and stability. Designed with strong load-bearing capacity, it can cope with various sports and load requirements, ensuring safety and reliability.