Specification :

Motorcycle gear box
Gear axle material: 20CrMo GB/ T 3077-1999( 0.19% C, 0.60% Mn, 0.26% Si, 0.03% Ni, 0.91% Cr, 0.17% Mo, 0.04% Cu, 0.24% P, 0.025S) ;
FINISED PRODUCT HRC45-55
Gear wheel material: 45A GB/ T699-1999 GB/ T702-2004 ( 0.46% C, 0.63% Mn, 0.23% Si, 0.04% Ni, 0.02% Cr, 0.015% Cu, 0.017% P, 0.013% S) ; For further information, please feel free to contact hqc0802 at hotmail com
FINISED PRODUCT HRC38-45
Aluminum material: ADC12( 0.76% Fe, 1.64% Cu, 11.58% Si, 0.23% Mg, 0.21% Mn, 0.98% Zn; 0.66% Fe, 0.048% Ni, 0.010% Sn, 0.049% Pb)