61905 Bearing 25x42x9mm Open Ball Bearing

61905 Open Ball Bearing
✔️ Chrome Steel - Open Type - 25mm x 42mm x 9mm

This 61905 open deep groove ball bearing is built for high-speed rotation and low-friction movement. Made from durable chrome steel, it’s designed for applications where protection from contamination isn’t needed, perfect for clean, controlled environments with external lubrication.

✅ Type: Deep Groove Ball Bearing
✅ Closure: Open (no seals or shields)
✅ Inner Diameter: 25mm
✅ Outer Diameter: 42mm
✅ Width: 9mm
✅ Material: Chrome Steel
✅ Lubrication: User-supplied (Open)
✅ Dynamic Load Rating (Cr): 7,000 N
✅ Static Load Rating (Cor): 4,500 N
✅ Max Speed: 16,000 RPM (grease), 20,000 RPM (oil)
✅ Quantity: 1 Bearing

💡 When should you use open ball bearings instead of sealed ones?
Open bearings are the better pick when:

• You're working in a clean or sealed system with controlled lubrication

• You want lower rolling resistance at high RPMs

• Regular maintenance or re-lubrication is possible

• Heat needs to dissipate quickly without rubber or metal enclosures

If you’re after raw speed and easy access, this open-style bearing gets the job done. Don’t let it roll away before you grab one!