H parallel shaft gearbox

1.Housing material:HT250 high-strength cast iron;
2.Housing hardness:HBS190-240;
3.Gear material:20CrMnTi alloy steel,other materials requested:17CrNi2Mo,20CrNi4A
4.Surface hardness of gears:HRC58-62;
5.Gear core hardness:HRC33-40;
6.Input / Output shaft material:42CrMo alloy steel;
7.Input / Output shaft hardness:HRC25-30;
8.Heat treatment:tempering,cementiting,quenching.etc.;
9.Machining precision of gears:accurate grinding, 6-5 Grade;
10.Noise (MAX):60~68dB;
11.Lubricating oil:GB L-CKC220-460, Shell Omala220-460;
12.Temp. rise (MAX):40°C ;
13..Efficiency:94%~96% (depends on the transmission stage) ;
14.Temp. rise (Oil)(MAX):50°C;
15.Backlash:≤20Arcmin;
16.Vibration:≤20μm;