| Inner Diameter | 20 mm |
| Outer Diameter | 42 mm |
| Thickness | 12 mm |
| Model | 4204ATN9 / 4304ATN9 / 6004 |
| Lubrication | Grease or Oil |
| Origin | China |
High-performance deep groove ball bearings with rich stock, 100% on-time delivery, and OEM/ODM service. Features high-grade grease technology, vibration grades Z1V1–Z3V3, and multiple brand options (NTN, NSK, Timken, etc.).