| Transmission stage |
HC1 (ratio from 1.25~5.6) |
| HC2 (ratio from 6.3~28) |
| HC3 (ratio from 22.4~112) |
| HC4 (ratio from 100~450) |
| Housing material |
HT250 high-strength cast iron |
| Housing hardness |
HBS190-240 |
| Gear material |
20CrMnTi alloy steel |
| Surface hardness of gears |
HRC58°~62 ° |
| Gear core hardness |
HRC33~40 |
| Input / Output shaft material |
42CrMo alloy steel |
| Input / Output shaft hardness |
HRC25~30 |
| Machining precision of gears |
accurate grinding, 6~5 Grade |
| Lubricating oil |
GB L-CKC220-460, Shell Omala220-460 |
| Heat treatment |
tempering, cementiting, quenching, etc. |
| Efficiency |
92%~98% (depends on the transmission stage) |
| Noise (MAX) |
60~68dB |
| Temp. rise (MAX) |
40℃ |
| Temp. rise (Oil)(MAX) |
50℃ |
| Vibration |
≤20µm |
| Backlash |
≤20Arcmin |
| Brand of bearings |
China Top brand HRB,LYC,ZWZ or other brands requested, NSK….. |
| Brand of oil seal |
NAK--- Taiwan or other brands requested |
