JPH0360618U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is an overall cross-sectional view of a four-point contact rolling bearing according to an embodiment of this invention, Fig. 2 is an enlarged cross-sectional view of the periphery of the balls of the bearing shown in Fig. 1, and Fig. 3 is a four-point contact rolling bearing according to the conventional technology. Overall sectional view of contact rolling bearing, No. 4
The figure is an enlarged sectional view of the periphery of the ball of the bearing shown in FIG. 3. In the figure, 1, 2, and 3 are the balls of the bearing, respectively;
They are an inner ring and an outer ring, 4 and 5 are contact points between the inner ring and outer ring of the bearing, respectively, and the balls, 6 is an inner ring wear powder accumulation,
Reference numeral 7 designates an outer ring wear powder reservoir, 8 a solid lubricant layer, 9 wear powder, and 10 an internal gap of the bearing. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] In a four-point contact bearing in which the surfaces of the inner ring and outer ring that make rolling contact with the balls are lubricated with solid, the contact points between the parts that make up the bearing are two points each on the inner ring of the ball and between the ball and the outer ring. Solid lubrication generated when the bearing rotates on the surface of the inner ring outer circumferential surface and the outer ring inner circumferential surface located between two circumferences formed by connecting points in the direction of movement according to the movement of the ball. A solid lubricated rolling bearing characterized by having a circumferential groove for collecting wear particles of the agent.