| Inner Diameter | 20 mm |
| Outer Diameter | 27 mm |
| Thickness | 4 mm |
| Model | W6004-2Z / W61704 / W61704-2RS1 |
| Lubrication | Grease or Oil |
| Origin | China |
Precision deep groove ball bearings with rich stock, 100% on-time delivery, and OEM/ODM support. Suitable for high-speed, low-vibration applications. Available in multiple seals (2Z, 2RS1) and grease/oil lubrication options.