
| Material | 45#/SUS42J2/SUM24L/SUS300 |
| Roundress | 0.001mm |
| Cylindricity | 0.003mm |
| Surface roughness | Rz 1.0 |
| Gear/Worm precision | Grade 6 |
| O.D.tolerance | 0.003mm |
| Heat treatment | point hardening (high frequency), quench hardening |
| Surface treatment | black Oxide, Phosphate |