SHELL-SHAPED ROLLER BEARING AND SHELL-SHAPED ROLLER BEARING STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a shell-shaped roller bearing capable of rolling a roller stably.;SOLUTION: A column 22 in a cage 14 included in the shell-shaped roller bearing is pressed against an inside diameter face 28 side and bent so as to form its cross sectional shape into a V shape. In PCD 26, a shearing face 23 on an outside diameter face 27 side is positioned in a central part of a side wall face 25, and a rupture face 24 on an inside diameter face 28 side is positioned at the end of the side wall face 25. Concerning a shell-shaped outer ring included in the shell-shaped roller bearing, its straightness in the axial direction of the raceway surface of the shell-shaped outer ring is 0.008 mm or less when the shell-shaped outer ring is press-fitted into a reference ring having an inside diameter hole in which the shell-shaped outer ring is press-fitted and its parallelism obtained by using the inside diameter face or the outside diameter face of the reference ring as a reference is 0.015 mm or less.;COPYRIGHT: (C)2007,JPO&INPIT