摘要:
A swash plate 3 includes an substrate 11 made of an iron-based material, a hard first resin layer 12 provided to coat an end surface of the substrate 11, and a soft second resin layer 13 provided to coat the first resin layer 12. A spiral annular groove 12A is formed in a surface of the first resin layer 12, and the second resin layer 13 is provided to match a sectional shape of the first resin layer 12. With the soft second resin layer 13 on a sliding surface 3A of the swash plate 3, the swash plate 3 having a good fit in an initial stage of sliding can be provided. When the second resin layer 13 partially wears, a protrusion 12 of the first resin layer 12 of hard resin is exposed, and thus the swash plate 3 having good wear resistance can be provided. The swash plate 3 having good sliding properties can be provided.
摘要:
Bearing 11 has base material 110 and coating layer 111. Base material 110 contains crank shaft 13 on an inner circumferential surface side. The inner circumferential surface of base material 110 is coated with coating layer 111. The inner circumferential surface side of base material 110 is coated with resin with thickness t, the resin is dried, and thereafter surface treatment is carried out such that multiple grooves C are provided on the surface of the resin so as to intersect with the direction of crank shaft 13, whereby coating layer 111 is formed. Peak portions B formed between adjacent grooves C come into contact with the outer circumferential surface of crank shaft 13 to support crank shaft 13. With bearing 11, the thickness of peak portions B at the center in the direction of the crank shaft 13 differs from the thickness of peak portions B at the end.
摘要:
First closing member 2 and second closing member 3 close opening portions at both ends of cylindrical member 1 in an axial direction. Base 411 is housed in a space formed by cylindrical member 1, first closing member 2, and second closing member 3, and rotates around an axis in the same direction as the axial direction of cylindrical member 1. Resin layers 410 are formed on thrust surfaces of base 411. Groove C is a plurality of concentric circular grooves or a spiral groove formed on each resin layer 410, and the center of circles of the circular grooves or the center of a spiral of the spiral groove is different from the rotation center of base 411.
摘要:
A lubricating oil from an oil supply pipe is supplied to a pump chamber (2A) through an axial direction oil supply hole of an oil supply passage, a diameter direction oil supply hole, and an axial direction oil supply groove. A gas passage includes a diameter direction gas hole and an axial direction gas groove, and the diameter direction gas hole is made to communicate with the axial direction gas groove when the diameter direction oil supply hole is made to communicate with the axial direction oil supply groove. When a passage area of the gas passage is defined as S 1 , a passage area of the oil supply passage is S 2 , a passage area of the oil supply pipe is S 3 , a diameter of the diameter direction oil supply hole is d 2 , and a width of the axial direction oil supply groove in a rotational direction of a rotor (3) is L, the passage area S 2 of the oil supply passage is set to be in a range of S 1
摘要:
Provided is a slide bearing with which friction-reducing effects are obtained and the total volume of effluent oil is limited. A slide bearing (1) in which halved members (2, 2) made by dividing a cylinder in two in a direction parallel to the axial direction are disposed vertically, wherein narrow grooves (3) are provided at an end of the lower halved member (2) in the circumferential direction, wherein an end of the narrow groove (3) on a downstream side of the rotation direction is disposed at the position which is adjacent to a mating surface on the downstream side of the rotation direction and not communicated with the mating surface on the downstream side of the rotation direction, and wherein an end of the narrow groove (3) on an upstream side of the rotation direction is disposed at the position which is the upstream side from the end on the downstream side of the rotation direction and is rotated by an angle no more than 90 degrees from the mating surface on the downstream side of the rotation direction.