UNIVERSAL JOINT WHICH CAN EXTEND THE SERVICE LIFE BY INCREASING THE DURABILITY

摘要

PURPOSE: A universal joint is provided to smoothly supply the lubricating oil between a bearing cup and a spider tip surface to prevent the deterioration and printing problem of the bearing cup.;CONSTITUTION: A universal joint comprises a screw(3) and a lubrication passageway(4). The screw is rotatably connected with a bearing cup(2) mounted on the tip-end part of a spider(1). The lubrication passageway is formed the inside of the spider. The screw is installed in order to circulate a lubricant of the lubrication passageway inside. The lubrication passageway is formed the inside of the spider into a cross shape. The screw is formed in order to be expanded along the inside of each lubrication passageway of the cross shape. The second lubrication passageway passing through the lubrication passageway through horizontal and vertical direction is formed on the tip-end part of spider.;COPYRIGHT KIPO 2010