Constructed of an aluminium center section and cast iron end plates, model GXP20 is a high pressure hydraulic gear pump with 11 displacement sizes from 0.24 - 1.95 in3/rev. (4 - 32 cm3/rev).The standard mounting fl ange is a SAE A - 2 bolt. Standard drive shaft is a 5/8” straight shaft with 5/32” key. Additional shaft options are available as outlined in the Ordering Example.