Professional Manufacturer of RC Helical Gearboxes
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 |
94%~96% (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 |