Pump with improved bearing arrangement for axial position control

A pump comprising:

• a housing;
• a shaft rotationally disposed through the housing and having a pair of oppositely directed shaft ends, the shaft having an axis;
• a pumping component secured between the shaft ends within the housing, the pumping component causing fluid to be pumped when rotated;
• oppositely arranged first and second bearing arrangements, each bearing arrangement supporting one of said shaft ends, each bearing arrangement comprising:
• a radial bearing having an inner race mounted for movement in unison with the shaft and an outer race disposed against the housing;
• and a thrust bearing assembly for receiving thrust loads from the shaft via the radial bearing inner race through means mounted between the thrust bearing assembly and radial bearing, the thrust bearing assembly being supported against the housing so that each of the thrust bearing assemblies is capable of bearing a respectively opposed unidirectional axial load in only an outwardly direction, each of the thrust bearing assemblies being axially adjustable.

A pump comprising:

• a housing;
• a shaft rotationally disposed through the housing and having a pair of oppositely directed shaft ends, the shaft having an axis;
• a pumping component secured between the shaft ends within the housing, the pumping component causing fluid to be pumped when rotated;
• first and second bearing arrangements, each bearing arrangement supporting one of said shaft ends, each bearing arrangement comprising;
• a radial bearing having an inner race mounted for movement in unison with the shaft and an outer race disposed against the housing;
• and
• a thrust bearing assembly for receiving thrust loads from the shaft via the radial bearing inner race, the thrust bearing assembly being supported against the housing, each thrust bearing assembly comprising:
• an annular mounting ring around the shaft, the mounting ring being in contact between the inner race and the thrust bearing assembly:
• an inner thrust washer contacting the mounting ring;
• an outer thrust washer fixed relative to the housing;
• a thrust bearing disposed between the thrust absorbing washers;
• and
• first and second bearing caps, each cap being secured to the housing,
• each bearing cap contacting against a respective outer thrust washer, retaining an axial position of the bearing assembly.