... 37 teeth 2. Material: 45GB or 40Cr 3 .Brake S-camshaft for heavy duty trucks, semi-trailers and trailers; generally include two parts ... machined by CNC machining center to insure better accurately of brake S-Camshaft. 5 .Intermediate frequency quenching, Hardening and tempering, ... Brake camshafts such as BPW ,FUWA, YORK ROR, SAF ,KIC ,BENZ ,STR , AN and so on. Brake S- cam Shaft for Fuwa heavy duty ...