6304 Bearing - Deep Groove Ball Bearing 20x52x15mm

6304 Open Ball Bearing - Deep Groove Radial - Chrome Steel
✔️ 20mm ID x 52mm OD x 15mm Width - Open Design - Oil Lubricated

The 6304 is a single-row deep groove ball bearing made for moderate to heavy radial loads and capable of light axial loads. With an open design, it's perfect for applications where high-speed performance and external lubrication are available. Commonly used in motors, pumps, gearboxes, and fans.

✅ Type: Deep Groove Ball Bearing
✅ Closures: Open (No Seals/Shields)
✅ Lubrication: Oil (or grease upon request)
✅ Inner Diameter (ID): 20mm
✅ Outer Diameter (OD): 52mm
✅ Width: 15mm
✅ Material: Chrome Steel
✅ Clearance: C0 Standard (1~11μm)
✅ Quantity: 1 Bearing
✅ Dynamic Load Rating (Cr): 16.8 kN
✅ Static Load Rating (Cor): 7.8 kN
✅ Max Speed (Oil Lubricated): 19,000 RPM

Interchangeable With:
✅ 6304
✅ NTN 6304
✅ Nachi 6304
✅ Koyo 6304
✅ FAG 6304
✅ NSK 6304
✅ MRC 304S
✅ Hoover 304
✅ New Departure 3304
✅ BCA 304
✅ Fafnir 304K
✅ Federal 1304
✅ Norma Hoffman 304

💡 What's the advantage of using an open 6304 bearing?
Open bearings are ideal when:

1. External lubrication is readily available and regularly maintained

2. Maximum speed is a priority (less seal friction)

3. There's minimal contamination in the environment

Simple, fast, and built to last - 6304 open bearings keep your machines spinning smoothly with fewer restrictions.