not shown composed of a base plate not shown and a cover 214 the pump 210 is driven in the same manner as the pump 10 of fig2 lubricant not shown enters the housing via an axial channel 217 in the rotor 220 and fills the six housing inlet channels 250 on the inside of the cover 214 the cover 214 has housing outlets 232 that function similarly to the housing outlets 32 of fig2 the rotor 220 functions similarly to the rotor 20 of fig2 as the rotor 220 rotates within the housing the respective piston followers 226 of the pistons 222 sequentially abut against the inlet cam lobes 248 and the outlet cam lobes not shown causing the piston bodies 224 to reciprocate in their respective bushings 234 the piston bodies 224 reciprocate between a first position and a second position not shown each piston body 224 and its respective bushing 234 together define a pumping chamber not shown the reciprocation of the piston bodies 224 draws lubricant from the respective housing inlet channels 250 into the respective pumping chambers not shown via the chamber inlets 244 the reciprocation of the piston bodies then pumps the lubricant out of the respective pumping chambers via the chamber inlets.