A radial-piston type hydraulic machine, comprising: a plurality of pistons arranged in a circumferential direction of the hydraulic machine; a cylinder block on which a plurality of cylinders for guiding the respective pistons reciprocably along a radial direction of the hydraulic machine is formed; a first end plate and a second end plate disposed on either side of the cylinder block in an axial direction of the hydraulic machine, the first end plate and the second end plate forming a stationary part of the hydraulic machine together with the cylinder block; a cam shaft including a ring cam disposed so as to face the plurality of pistons; and a first roller bearing and a second roller bearing disposed on opposite ends of the hydraulic machine in the axial direction, the first roller bearing being disposed between the cam shaft and the first end plate and the second roller bearing being disposed between the cam shaft and the second end plate, wherein each of the first roller bearing and the second roller bearing includes: a rotary ring (61;66) fixed to the cam shaft and configured to rotate with the cam shaft; a stationary ring (62;67) fixed to the first end plate or the second end plate; and a rolling element (63;68) disposed between the rotary ring (61;66) and the stationary ring (62;67), wherein the first roller bearing is disposed adjacent to the first end plate in the axial direction, and the stationary ring of the first roller bearing is in contact with the first end plate without a gap in the axial direction, and wherein the second roller bearing is disposed adjacent to the second end plate in the axial direction, characterized in that the stationary ring of the second roller bearing is disposed at a distance from the second end plate so as to have a gap in the axial direction, the hydraulic machine further comprises a biasing member for biasing the stationary ring of the second roller bearing toward the first roller bearing in the axial direction, the biasing member being disposed between an end surface of the stationary ring of the second roller bearing and a radial wall surface of the second end plate, the radial wall surface extending along the radial direction so as to face the end surface, and an annular resin sheet is disposed between a circumferential surface of the stationary ring of the second roller bearing and an axial wall surface of the second end plate, the axial wall surface extending along the axial direction so as to face the circumferential surface. a plurality of pistons arranged in a circumferential direction of the hydraulic machine; a cylinder block on which a plurality of cylinders for guiding the respective pistons reciprocably along a radial direction of the hydraulic machine is formed; a first end plate and a second end plate disposed on either side of the cylinder block in an axial direction of the hydraulic machine, the first end plate and the second end plate forming a stationary part of the hydraulic machine together with the cylinder block; a cam shaft including a ring cam disposed so as to face the plurality of pistons; and a first roller bearing and a second roller bearing disposed on opposite ends of the hydraulic machine in the axial direction, the first roller bearing being disposed between the cam shaft and the first end plate and the second roller bearing being disposed between the cam shaft and the second end plate, wherein each of the first roller bearing and the second roller bearing includes: a rotary ring (61;66) fixed to the cam shaft and configured to rotate with the cam shaft; a stationary ring (62;67) fixed to the first end plate or the second end plate; and a rolling element (63;68) disposed between the rotary ring (61;66) and the stationary ring (62;67), a rotary ring (61;66) fixed to the cam shaft and configured to rotate with the cam shaft; a stationary ring (62;67) fixed to the first end plate or the second end plate; and a rolling element (63;68) disposed between the rotary ring (61;66) and the stationary ring (62;67), wherein the first roller bearing is disposed adjacent to the first end plate in the axial direction, and the stationary ring of the first roller bearing is in contact with the first end plate without a gap in the axial direction, and wherein the second roller bearing is disposed adjacent to the second end plate in the axial direction,