| 摘要 |
PROBLEM TO BE SOLVED: To solve such a problem that oil face and air bubbles are apt to generate when oil flow collides directly with the side face of a guide bearing and a large quantity air bubbles break an oil film by decrease of the delivery pressure of a thrust force pump and generate causes to bring about phenomena such as direct contact (metal contact) of mutual sliding forces of the guide bearing and decrease of the delivery pressure of an oil circulation pump. SOLUTION: Generation of air bubbles in an oil tank is reduced by cutting a part of a portion to the side face of the guide bearing from the back face to form a resistance reducing face against the oil stream. |
