| 摘要 |
<p>PURPOSE: To provide a main shaft slide bearing for a hydraulic pump motor to absorb and relax one-sided contact of a bearing bush even when a sideways high load is exerted on the rotary shaft of a hydraulic pump and the rotary shaft is deformed and prevent the occurrence of seizure and wear. CONSTITUTION: The main shaft slide bearing of a hydraulic pump motor is structured in such a manner that a plurality of slits 2d are formed in the rotary shaft of the hydraulic pump and a part of a bearing bush 2b on the one-sided contact side, and the back of a bush 2b or the equivalent part in the axial direction of the slit 2d on the bush press-in holder side is escaped, and the back of the bush 2b and the equivalent part in an axial direction of the slit 2d of a bush holder 2a are brought into no contact with each other.</p> |
