High-Quality 6900/61900 Thin-Wall Deep Groove Ball Bearings for Bicycles

Precision-engineered with chrome steel for superior durability and smooth rotation, featuring a thin-wall design to save space without compromising strength.

Mirror-polished raceways and high-grade steel balls minimize friction, ensuring silent operation and extended lifespan even under heavy loads.

Ideal for bicycle hubs, bottom brackets, and small machinery where compact size and reliable performance are critical.

Sold in bulk at unbeatable wholesale prices – perfect for repair shops, manufacturers, and serious cyclists stocking up.

Seal-free design allows easy maintenance and custom lubrication options for specialized applications.

Global shipping available with guaranteed lowest prices for volume buyers.