S Helical – Worm gear units
| Housing material | HT250 High-strength cast iron |
| Housing hardness | HBS90-240 |
| Gear material: | 20CrMnMo |
| Surface hardnesss of gear | HRC58°-62° |
| Gear core hardness | HRC33°-40° |
| Input/Output shaft material | 40Cr or 42CrMo |
| Input/Output shaft hardness | HBS250°-290° |
| Shaft at oil seal postion hardness | HRC48°-55° |
| Machining precision of gears material | Accurate grinding 4-6 grade |
| Heat treatment | Tempering, cementing, quenching etc |
| Efficiency | Up to 90% |
| Noise(Max) | ≤68dB |
| Unit model | Foot mounted, flange mounted |
| Input method | Flange input, inline input, shaft input |
| Vibration | ≤20um |
| Backlash | ≤20Arcmin |
| Bearing brands | NSK, SKF etc |
| Oil seal brands | NAK, SKF etc |
| Lubricant | VG220 |
| Motor | Y series motor |
| Motor shaft | 40Cr or 42CrMo, Tempering, cementing, quenching etc. |