SOLID LUBRICATION ROLLER BEARING

摘要

Provided is a solid lubrication roller bearing having superior long-term durability even when used under high surface pressure and a high temperature vacuum of at least 250°C and a vacuum of no greater than 10-4 Pa. The solid lubrication roller bearing (1) is provided with: an inner race (2) and an outer race (3); a plurality of rolling bodies (4) interposed between the inner race (2) and the outer race (3); and at least one ball (5) comprising a solid lubrication composite material assembled between the inner race (2) and the outer race (3). The rolling bodies (4) are balls comprising silicon nitride, the ball (5) comprising the solid lubrication composite material is a smaller-diameter ball than the balls comprising silicon nitride, and the solid lubrication composite material is a sintered material that disperses tungsten disulfide in an alloy.