Abstract: A sliding member includes: a lining layer formed from an alloy having a predetermined shape; and an overlay layer formed on an inner circumferential surface of the lining layer, the overlay layer being formed of a resin, the overlay layer sliding with a shaft, the overlay layer including a raised portion a height of which in a predetermined area including each of an edge in an axial direction of the shaft is greater than a height of another area of the overlay layer.

Abstract: Bearing 13 has lining layer 17 that is formed of an alloy having a predetermined shape and that has chamfered portion 25, and overlay layer 19 that is formed of a resin on an inner circumferential surface of lining layer 17, the inner circumferential surface sliding relative to a mating shaft, and that covers at least a portion of chamfered portion 25.

Abstract: To provide a bearing member for a valve gear capable of reducing friction. A bearing member (34) for a valve gear (1) includes a cam shaft (20). The cam shaft (20) has: a cam (30) for opening/closing at least one of an intake valve and an exhaust valve; and a plurality of journal parts (36). The bearing member (34) includes: a cam cap (38) supporting the journal part (36) from above, surrounding it; a bearing base part (40) supporting the journal part (36) from below; and a stepped part (46a) provided on an inner peripheral surface of the cam cap (38) facing the journal part (36), overhanging on an inner peripheral side of the inner peripheral surface. An upstream-side end portion (46c) of the stepped part (46a) is positioned more on a downstream side than an upstream-side abutting surface (38a) of the cam cap (38), whereas a downstream-side end portion (46d) of the stepped part (46a) is positioned more on an upstream side than a downstream-side abutting surface (38b) of the cam cap (38).

Abstract: Bearing 13 has lining layer 17 that is formed of an alloy having a predetermined shape and that has chamfered portion 25, and overlay layer 19 that is formed of a resin on an inner circumferential surface of lining layer 17, the inner circumferential surface sliding relative to a mating shaft, and that covers at least a portion of chamfered portion 25.

Abstract: A sliding member has an alloy layer that is formed of an alloy having a predetermined shape, a binder resin that forms an overlay layer on an inner circumferential surface of the alloy layer, the inner circumferential surface sliding against a mating member, and a graphite that is contained in the overlay layer as a solid lubricant and that has a graphitization degree of 90% or more.

Abstract: A sliding member includes: a lining layer formed from an alloy having a predetermined shape; and an overlay layer formed on an inner circumferential surface of the lining layer, the overlay layer being formed of a resin, the overlay layer sliding with a shaft, the overlay layer including a raised portion a height of which in a predetermined area including each of an edge in an axial direction of the shaft is greater than a height of another area of the overlay layer.

Abstract: To provide a bearing member for a valve gear capable of reducing friction. A bearing member (34) for a valve gear (1) includes a cam shaft (20). The cam shaft (20) has: a cam (30) for opening/closing at least one of an intake valve and an exhaust valve; and a plurality of journal parts (36). The bearing member (34) includes: a cam cap (38) supporting the journal part (36) from above, surrounding it; a bearing base part (40) supporting the journal part (36) from below; and a stepped part (46a) provided on an inner peripheral surface of the cam cap (38) facing the journal part (36), overhanging on an inner peripheral side of the inner peripheral surface. An upstream-side end portion (46c) of the stepped part (46a) is positioned more on a downstream side than an upstream-side abutting surface (38a) of the cam cap (38), whereas a downstream-side end portion (46d) of the stepped part (46a) is positioned more on an upstream side than a downstream-side abutting surface (38b) of the cam cap (38).