Gear pump GR1 European Flange prepared for Tandem-GR1 - clockwise rotation CW - Flow 3,5 cc/rev - Max pressure 250 bar - V.max 5000rpm - Aluminium central body and caseback - Aluminium flange holes connection D=6,5mm - Int.=73x56 - Centering diameter D=30mm - Shaft D=12 conical 1:8 - Disk tab Sp.3,0mm- Side connections hole D=13mm - Wheelbase l=30 screws M6.