Patent ID: 6010321
Filing Date: 2000-01-04
Classification: F04C

Abstract:
A hydraulic motor and spindle with improved spindle bearing lubrication comprising:a hydraulic motor housing;a first shaft extending within the hydraulic motor housing, wherein a first motor element is located on the first shaft;a second shaft extending within the hydraulic motor housing, wherein a second motor element is located on the second shaft, the first motor element and the second motor element forming part of a hydraulic motor;a spindle housing connected beneath the motor housing;a spindle extending with the spindle housing and connected in driven relationship to the first shaft, the spindle having at least one thrust bearing surface and at least one cylindrical bearing surface;a plain journal bearing mounted on the spindle housing and engaging the cylindrical bearing surface on the spindle;a plain thrust bearing mounted on the spindle housing and engaging the thrust bearing surface on the spindle;portions of the hydraulic motor positioned about the first shaft and above the second shaft which define a case drain which communicates with the spindle housing through a passage defined by portions of the second shaft; andportions of the spindle housing forming a passageway extending beneath the journal bearing and the thrust bearing and communicating with the second shaft passage.