| housing material: | 
HT2OO high-strength cast iron from R37,47,57,67,77,87
 HT250 High strength cast iron from R97,107,137,147,167  | 
| Gear material: | 20CrMnTi | 
| Housing hardness | HBS90-240 | 
| Surface hardness of gear | HRC58°-62° | 
| Gear core hardness | HRC33°-40° | 
| Input/Output shaft material | 40Cr | 
| Input/Output shaft hardness | HBS241°-286° | 
| Shaft at oil seal pos i tion hardness | HRC48 ° -55 ° | 
| Machining precision of gears material | Accurate grinding 6-5 grade | 
| Efficiency | up to 98% | 
| Noise(Max) | 60-68dB | 
| Tem p .rise: | 40°C | 
| Vibration | ≤20um | 
| Motor | IP54, F class ,B5 FLANGE | 
| color : | blue (if you need big quantity ,we can done as your wanted color ) |