Poly Chain GT Timing Pulley 8MGT

PITCH: Poly Chain GT 8M teeth number from 22 to 60
GT8M-12 for belt width 12mm; GT8M-21 for belt width 21mm;
GT8M-36 for belt width 36mm; GT8M-62 for belt width 62mm;
Material: Steel and cast iron.
Surface treatment options: Blackening and Phosphating