6004LU Bearing - Sealed Ball Bearing 20x42x12mm

6004LU Bearing - Sealed Ball Bearing
✔️ 20mm ID - 42mm OD - 12mm Width

The 6004LU Bearing is a deep groove ball bearing with rubber seals on both sides to keep out dust and moisture. Made from tough chrome steel and pre-filled with grease, it’s ready for smooth, maintenance-free performance in electric motors, tools, and small machinery.

✅ Pack size: 1 bearing
✅ Size: 20mm x 42mm x 12mm
✅ Type: Deep groove sealed ball bearing
✅ Material: Chrome steel (52100 alloy)
✅ Seals: Double rubber (LU type)
✅ Lubrication: Pre-greased, no maintenance needed
✅ Dynamic load rating: 9,400 N
✅ Static load rating: 5,000 N
✅ Max speed (grease): 11,000 RPM
✅ Cross-references: 6004-2RS1, 6004-2RZ

💡 What are sealed ball bearings used for in mechanical equipment?

1. Rubber seals block out contaminants and hold in lubrication.

2. Pre-lubricated design reduces downtime and setup hassle.

3. Ideal for medium-speed motors, tools, and conveyors needing smooth operation.

A solid, long-lasting bearing built for reliability in dusty or enclosed systems.