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? Rubber seals block out contaminants and hold in lubrication. Pre-lubricated design reduces downtime and setup hassle. Ideal for medium-speed motors, tools, and conveyors needing smooth operation. A solid, long-lasting bearing built for reliability in