| abstract |
Provided is a rolling bearing for a sliding door provided with a resin material having excellent mechanical properties such as fatigue resistance and water resistance and calcium chloride resistance. SOLUTION: An inner ring, an outer ring, rolling elements and a cage are provided, and a resin part made of a synthetic resin composition is provided on a circumferential groove provided on an outer peripheral part of the outer ring, and an outer peripheral part and an end face part of the outer ring are provided. In a rolling door rolling bearing disposed so as to cover, the synthetic resin composition has a resin component of 45 to 80% by mass of the total amount of the synthetic resin composition, and glass fiber of 20 to 55% of the total amount of the synthetic resin composition. The resin component contains 60 to 80% by mass of polyamide 66, 15 to 25% by mass of amorphous aromatic polyamide, and 5 to 5% of low water-absorbing aliphatic polyamide with respect to the total amount of the resin component. A rolling bearing for a sliding door, characterized by comprising 15% by mass. [Selection] Figure 1 |