15247-2RS Bearing 15*24*7 mm ( 2 PC ) 63802 RS Bicycle Hub Front and Rear Hub Wheel 15 24 7 Ball Bearings

WZZG 15247-2RS Bicycle Bearing Model: 15247-2RS Brand Name: WZZG Number of rolling body columns: single column Material: bearing steel Inner diameter: 15mm Outer Diameter: 24mm Thickness: 7mm Seal Type: Double-sided rubber sealing cover (RS) Weight: 70 grams Quantity: 2pieces   Wheel Bearing Guide The hub is the central part of a bicycle wheel (front and rear) that is attached to the rim via spokes and mounts the axle via the hub, allowing the wheel to spin freely on two sets of bearings. Since bikes have front and rear wheels, they also have front and rear-specific hubs. The design of the front hub is simple enough to allow the wheel to spin, while the rear hub is slightly more complex because it is also part of the bike's transmission - the freewheel or sprocket that drives the rear wheel is attached to the rear hub, and most bikes also have a feature that allows you to Mechanisms for gliding or freeride (except for fixed-gear or "fixed" bicycles and track bicycles). Your wheels