| abstract |
【Task】 It is intended to provide a railcar bearing that is excellent in long-term durability by preventing frictional wear on a lubricated surface in a state where a high load or sliding motion occurs. [Solution] An inner ring and an outer ring, a plurality of rolling elements interposed between the inner ring and the outer ring, and a railway vehicle bearing in which grease is sealed around the rolling elements, the grease including a base oil, a thickener, The additive is an inorganic bismuth compound, and the inorganic bismuth compound is blended in an amount of 0.01 to 15% by weight based on the entire grease. [Selection] Figure 1 |