NA 4900 2RS - High Chromium Steel Precision Machined Needle Bearing Experience superior performance with the NA 4900 2RS needle bearing, crafted from high chromium steel for enhanced durability and corrosion resistance. Precision machined to exact specifications, this 10mm x 22mm x 13mm bearing ensures smooth operation and reliable support for your cycling components. Ideal for high-performance bicycle applications requiring precise and durable needle bearings. Material: High Chromium Steel for durability and corrosion resistance Dimensions: 10mm x 22mm x 13mm Type: 2RS (double rubber seal) for enhanced protection against dirt and moisture Application: Suitable for high-performance bicycle hubs, cranksets, and other cycling components Features: Precision machined for smooth operation and long-lasting performance