SKF 6304 NR 1 Row Deep Groove Ball Bearing - 20 mm ID, 52 mm OD

This deep groove ball bearing is designed to support radial and moderate axial loads in rotating assemblies commonly found in automation and electrical equipment. It features an open-ended configuration and a cylindrical bore, making it straightforward to mount in housings and suitable for applications where Visual inspection or relubrication access is required. The construction uses steel balls and a sheet‑metal cage to maintain ball spacing and rolling stability during continuous operation.

• Dynamic load capacity 16.8 kN delivers sustained operational load handling
• Static load rating 7.8 kN resists shock and standstill loads
• High permissible speed 19 000 r/min enables high‑speed machine use
• Internal clearance CN provides predictable axial and radial play
• Single‑row design reduces axial footprint while supporting combined loads
• Open ends allow easy lubrication and Visual maintenance

• Suitable for high‑speed spindle bearings in automation equipment
• Ideal for motors and drives in electrical assemblies
• Used with precision rollers in electronic manufacturing machines
• Can be used for gearboxes requiring Compact radial support
• Suitable for conveyor idlers in light mechanical systems

Steel balls run within hardened raceways and are guided by a sheet‑metal cage that spaces the rolling elements, promoting smooth motion and limiting metal‑to‑metal contact.

The cylindrical bore accepts standard shaft fits and simplifies installation using common press‑fit or housing methods without requiring tapered adaptors.

The specified static capacity indicates the bearing can withstand up to 7.8 kN of non‑rotating load without permanent deformation to the rolling contacts.

The CN clearance provides a controlled amount of radial and axial movement, accommodating modest shaft misalignment and thermal expansion while maintaining contact‑pattern stability.