6304LU Sealed Bearing 20x52x15mm

6304LU Sealed Ball Bearing✔️ 20 x 52 x 15mm - Rubber Sealed - Chrome Steel The 6304LU is a deep groove ball bearing designed for high durability and smooth performance in electric motors, gearboxes, and general machinery. With a rubber seal on one side, it offers effective protection against dust and debris while retaining grease for long-term, maintenance-free use. ✅ Type: Deep groove ball bearing✅ Material: Chrome steel (52100 alloy)✅ Closures: Single rubber seal (LU)✅ Size: 20mm (ID) x 52mm (OD) x 15mm (Width)✅ Lubrication: Pre-lubricated with grease✅ Quantity: 1 bearing 💡 What does “LU” mean in a bearing?“LU” typically indicates a single rubber seal on one side of the bearing. It's designed to block contaminants while allowing easy access for maintenance if needed. A reliable, sealed bearing for smooth rotation and long-lasting performance in everyday mechanical setups.