| Bore Diameter (d) | 5 mm |
| Outer Diameter (D) | 11 mm |
| Width (B) | 4 mm |
| Model | W628/5R-2Z / W628/5-2RS1 / W628/5-2Z |
| Lubrication | Grease or Oil |
| Origin | China |
Precision deep groove ball bearings with compact dimensions (5×11×4 mm), suitable for high-speed and low-noise applications. Features sealed design (2Z/2RS1), rich stock, 100% on-time delivery, and OEM/ODM support.