4304 Double Row Open Ball Bearing 20x52x21 Mm Chrome Steel Deep Groove Open Type With 20 Mm Inner Diameter 52 Mm Outer Diameter And 21 Mm Width High Load Capacity Precision Metric Bearing For Machinery Robotics And Conveyors

Single 4304 double-row ball bearing, 20x52x21 mm
✔️ Cr 18720 N, Cor 12800 N; grease lubrication 7600-9600 RPM

This 4304 double-row open ball bearing in chrome steel offers strong radial support in compact machinery. It's commonly used in conveyors, gearboxes, and other drive systems where smooth operation and easy lubrication access are key.

✅ Inner diameter 20 mm, outer diameter 52 mm, width 21 mm
✅ Chrome steel construction for durability and wear resistance
✅ Dynamic load rating Cr 18720 N; static load rating Cor 12800 N
✅ Open design for easy lubrication and inspection
✅ Lubrication options: grease up to 7600 RPM, oil up to 9600 RPM

💡 What is a common use case for a double-row ball bearing in machinery? This handy guide explains typical scenarios.

- Handy for high radial load support in compact equipment - Used in conveyors, gearboxes, and motor drives - Open design allows easy lubrication and inspection