| 摘要 |
The rolling bearing of a guide roller is held in the bore of a thin wall roller adapted to guide a pulley, by projections radially inwardly extending from the thin wall roller. The projections may be in the form of beads having planar surfaces in a plane normal to the axis of the bearing on the side facing the bearing, or they may be notches having one side thereof separating from the material of the roller to be forced radially inwardly to engage the sides of the bearing. The notches may be resilient, to enable the bearing to be snapped into position. |
