SLIDING BEARING

摘要

Disclosed is a sliding bearing having a cylindrical shape, including: a Fe alloy back metal layer on an outside diameter side of the cylindrical shape and a sliding layer on an inside diameter side; and a first and second circumferential direction end surfaces, the first and the second circumferential direction end surfaces facing each other, a plurality of hardened convex portions projecting toward the second circumferential direction end surface being formed on the first circumferential direction end surface, a plurality of hardened concave portions corresponding to the plurality of hardened convex portions being formed on the second circumferential direction end surface, a first hardened area being formed on each of the hardened convex portions of the first circumferential direction end surface and its vicinity, and a second hardened area being formed on each of the hardened concave portions of the second circumferential direction end surface and its vicinity.

主权项

1. A sliding bearing having a cylindrical shape, comprising:
a Fe alloy back metal layer on an outside diameter side of the cylindrical shape and a sliding layer on an inside diameter side of the cylindrical shape; and a first circumferential direction end surface and a second circumferential direction end surface, the first circumferential direction end surface and the second circumferential direction end surface facing each other, wherein there is a first circumferential direction space S1 in a free state between the first circumferential direction end surface and the second circumferential direction end surface, a plurality of hardened convex portions projecting toward the second circumferential direction end surface being formed on the first circumferential direction end surface, a plurality of hardened concave portions corresponding to the plurality of hardened convex portions being formed on the second circumferential direction end surface, a dimensional relation between a maximum height LK1 of a top of each of the hardened convex portions and a maximum depth LK2 of a bottom of each of the corresponding hardened concave portions being LK1>LK2, each of the hardened convex portions having a width HK1 in an axial direction of the sliding bearing on the first circumferential direction end surface, and each of the hardened concave portions having a width HK2 in the axial direction on the second circumferential direction end surface, a dimensional relation between the width HK1 of each of the hardened convex portions and the width HK2 of each of the corresponding hardened concave portions having HK1