According to different classification of materials processing

Carbon steel belt round (round turning), triangular belt wheel castings (cast iron and ductile iron casting of Mao Pei), the spinning triangle pulley (plate pressed), plastic and aluminum alloy belt wheel (with a miniature triangular belt wheel, such as PJ, PH belt pulley)

According to the different classification standard

A: ordinary V-belt wheel: OO\O\A\B\C\D\E

B: narrow V belt V-belt wheel: SPZ\SPA\SPB\SPC

C: miniature triangular belt wheel: PH\PJ\PK\PL\PM

According to the different ways of connection and fastening classification:

A: cone belt wheel (with a tension sleeve)

B: straight hole triangular belt wheel (keyway connection)

C: screw lock type triangular belt wheel (in spinning triangular belt wheel based)