Patent ID: 9121449
Filing Date: 2015-09-01
Classification: F16C,F16N

Abstract:
1. A slide bearing comprising: a lower half bearing portion that covers a rotating shaft from a lower side thereof and includes a substantially horizontally extending upper face and a lower slide surface slidably supporting the rotating shaft; an upper half bearing portion that covers the rotating shaft from an upper side thereof and includes a substantially horizontally extending lower face and an upper slide surface slidably supporting the rotating shaft, wherein the upper face of the lower half bearing portion and the lower face of the upper half bearing portion are joined to join the lower half bearing portion with the upper half bearing portion, wherein a vertical diametrical line of the rotating shaft is substantially perpendicular to the joined substantially horizontally extending upper and lower faces; an oil supply passage that is formed in the lower half bearing portion and supplies lubricating oil supplied from an oil supply inlet at a peripheral surface of the lower half bearing portion into a clearance between an outer peripheral surface of the rotating shaft and the lower slide surface and the upper slide surface; and an oil discharge passage that is formed in the lower half bearing portion and discharges the lubricating oil from the clearance to an oil discharge outlet at the peripheral surface of the lower half bearing portion, wherein, within a group of elements consisting of the lower half bearing portion and the upper half bearing portion, the oil supply passage and the oil discharge passage are both provided only in the lower half bearing portion, and wherein the oil supply passage includes a supplied oil introducing groove formed in the peripheral surface of the lower half bearing portion so as to communicate with an oil supply hole, wherein the oil discharge passage includes a discharged oil discharging groove formed in the peripheral surface of the lower half bearing portion so as to communicate with an oil discharge hole, wherein the supplied oil introducing groove extends to the oil supply hole from the oil supply inlet circumferentially spaced from the oil supply hole, wherein the discharged oil discharging groove extends to the oil discharge hole from the oil discharge outlet circumferentially spaced from the oil discharge hole, and wherein the supplied oil introducing groove and the discharged oil discharging groove are each U shaped and are mutually inverted in an axial direction of the rotating shaft.