6811 Deep Groove Ball Bearings 55X72X9Mm 1 Pc Scooter Skateboard Wheel

Product Characteristics: Pre-lubricated, smooth and flat bearing surface, compact structure, with strong bearing capacity and dust-proof, long service time. Single-row design, suitable for high-speed, low friction, low-noise and low vibration, improve efficient and steady work. High temperature quenching forging, sturdy and durable in operation, these deep groove ball bearings combine radial and load at high speed. Mainly applicated on wheels for cars, bikes, motorcycles, karts, lawn mowers, skateboards, roller skates, tractors, 3D prints, snow blower etc. Specification: Outer Diameter: 72mm / 2.83" Inner Diameter: 55mm / 2.17" Width: 9mm / 0.35" Color: Silver Tone Type: 6811 Precision Level: P6 Basic Load Ratings (kN): Cr:8.8 C0r:8.5 Limiting Speeds(min-1): Grease:8500 Oil:10000 Material:Bearing SteelPackage List:1 Pcs Deep Groove Ball BearingsNote: Please confirm the model number and dimension before buying, thanks!