| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent wear at sliding parts between rollers and a guide ring without causing a trouble in assembling and the roller guiding accuracy of a bearing. <P>SOLUTION: An oil supply path comprises through holes 6a, an oil reservoir groove 6b, and a communication hole 6d. The through holes 6a are formed radially penetrating the inside-diameter surface to the center of the outside diameter surface at a plurality of positions in the peripheral direction of an inner ring 1. The oil reservoir groove 6b is formed annularly in continuation on the inside diameter face where the through holes 6a are formed. The communication hole 6d establishes axial communication from an oil supply port 6c provided at the side of one end to the oil reservoir groove 6b. Lubricating oil is supplied to the center on the outside diameter surface whereon the guide ring is installed. The lubricating oil supplied through the oil supply path is led by a centrifugal force caused by the rotation of the inner ring 1 to the sliding part between the inside end face 3c of the rollers 3 and the side face 5a of the guide ring 5. Thus, wear at sliding parts can be prevented without causing any trouble in assembling and accuracy in guiding the rollers 3 of the bearing. <P>COPYRIGHT: (C)2008,JPO&INPIT |
