Coupling shaft for gear pump

摘要

A coupling shaft assembly includes a coupling shaft with a first radial shoulder and a second radial shoulder, the first radial shoulder and the second radial shoulder each include at least one slot to provide a lubricant flow path.

主权项

1. A gear pump comprising:
a housing; an input shaft which at least partially extends from said housing and rotatable about an input shaft axis, said input shaft defines a first input shaft radial shoulder and a second input shaft radial shoulder; and a coupling shaft rotatable about a coupling shaft axis parallel to said input shaft axis, said coupling shaft defines a first coupling shaft radial shoulder and a second coupling shaft radial shoulder, said first coupling shaft radial shoulder and said second coupling shaft radial shoulder each include at least one slot that opens, respectively, at opposed axial sides of the first coupling shaft radial shoulder and opposed axial sides of the second coupling shaft radial shoulder.