| 摘要 |
<P>PROBLEM TO BE SOLVED: To realize a radial needle bearing capable of achieving a flow adjustment function sufficiently at low cost. <P>SOLUTION: A throttling cylindrical part 9 is formed integrally with the outer wheel 1 at one end of the axial direction of this outer wheel 1 by making the metal plate for the outer wheel 1 bend and form in an axial continuous condition from the inner rim of an inward flange part 6b. This throttling cylindrical part 9 is concentric to the main cylindrical part 4 and has a little larger inner diameter R than the outer diameter D of an inner diameter side member 8 of revolving axle etc. The thickness t and the length L of throttling channel between the outer circumference face of this inner diameter side member 8 and the inner circumference face of the above throttling cylindrical part 9 are regulated appropriately and the flow of the lubricant that passes through in an axial direction of the above radial needle bearing is regulated appropriately. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
