| Item | Details |
|---|---|
| Diameter | 10mm, with strict dimensional tolerance control within ±0.01mm to ensure consistency in assembly and use. |
| Material Hardness | Carbon steel material with a hardness range of HB 180 - 220, providing sufficient strength to withstand medium loads. |
| Surface Roughness | Ra≤1.6μm, achieved through polishing, ensuring a smooth surface that reduces friction and improves wear resistance. |