| Inner Diameter | 4 mm |
| Outer Diameter | 12 mm |
| Thickness | 4 mm |
| Model | D/WR144R-2Z / D/WR144-2Z / 604-2Z |
| Lubrication | Grease or Oil |
| Origin | China |
High-performance miniature deep groove ball bearing with rich stock availability, 100% on-time delivery rate, and OEM/ODM service support. Designed for precision applications requiring low vibration (Z1V1–Z3V3) and reliable grease/oil lubrication. Made in China, compliant with HS Code 8482102000.