6904LU Ball Bearing - 20x37x9mm - Sealed

6904LU Sealed Ball Bearing
✔️ 20mm x 37mm x 9mm - Double Rubber Sealed for Clean, Smooth Performance

The 6904LU is a deep groove radial ball bearing with rubber seals on both sides to guard against dirt, moisture, and debris. Built from high-quality chrome steel and pre-lubricated for smooth operation, it’s a reliable choice for electric motors, precision tools, and hobby-grade machinery.

✅ Item: 6904-LU Ball Bearing
✅ Type: Deep Groove Ball Bearing
✅ Material: Chrome Steel (52100 Alloy)
✅ Inner Diameter: 20mm
✅ Outer Diameter: 37mm
✅ Width: 9mm
✅ Closures: Double Rubber Seals (LU/2RS)
✅ Lubrication: Pre-lubricated with grease
✅ Size: 20 x 37 x 9 mm
✅ Quantity: 1 Bearing

💡 What’s the advantage of LU (2RS) sealed bearings?
LU-sealed bearings (or 2RS) help extend lifespan by keeping out contaminants and retaining grease, reducing the need for maintenance and ensuring smooth rotation over time. Great for medium-duty applications where cleanliness matters.