6004 Nachi Open C3 Deep Groove Ball Bearing 20x42x12mm Made in Japan for electric motors pumps and machinery, high speed radial load bearing with increased clearance for heat and smooth rotation

6004 Nachi Open Ball Bearing C3 Made in Japan 20mm x 42mm x 12mm
✔️ 6004 Nachi Deep Groove Ball Bearing Open C3

This open deep groove ball bearing is used in motors, pumps, and general machinery where low friction and higher running clearance help with heat and speed. It is handy for setups that use external lubrication and need reliable rotation without seals.

✅ Pack size: 1 bearing
✅ Bearing type: single row deep groove ball bearing
✅ Inside diameter: 20mm
✅ Outside diameter: 42mm
✅ Width: 12mm
✅ Radial clearance: C3
✅ Open design for oil or grease lubrication systems
✅ Dynamic load rating: 9400 N
✅ Static load rating: 5000 N
✅ Limiting speed with grease: 18000 RPM
✅ Limiting speed with oil: 21000 RPM
✅ Country of origin: Japan

💡 Why use an open C3 deep groove ball bearing in high speed rotating equipment?
Open C3 bearings are chosen when heat, speed, and lubrication control are important in the same design.

• C3 internal clearance supports thermal expansion at higher operating temperatures

• Open raceway allows direct oil or grease flow for cooling and lubrication

• Deep groove geometry handles radial loads with smooth rolling

• Precision steel components help reduce vibration and extend service life

A dependable choice for machinery that needs stable high speed operation with controlled lubrication and long running performance.