638/4-2Z W604-2RS1 Deep Groove Ball Bearing – High-Precision Auto Wheel Machinery Parts
Basic Info.
| Inner Diameter | 4 mm |
| Outer Diameter | 12 mm |
| Thickness | 4 mm |
| Model | 638/4-2Z W604 W604-2RS1 |
| Lubrication | Grease or Oil |
| Origin | China |
Introduction
High-performance miniature deep groove ball bearing with rich stock, 100% on-time delivery, and OEM/ODM service. Suitable for precision instruments and small motors. Grease technology rated “High”, vibration grades Z1V1–Z3V3 supported. Fast response (<0.5h) and global shipping options.
























