| 摘要 |
<p>A bearing device (1) includes: an inner ring member (4) through which a shaft (2) is passed and which is supported rotatably about an axis (3) of the shaft and includes an inner ring raceway surface; an outer ring member (5) arranged concentrically with the inner ring member (4) and including an outer ring raceway surface; a plurality of rollers (8) arranged rollably between the inner ring raceway surface and the outer ring raceway surface; a lubricating path (21,22) through which lubricant is supplied to at least one of the inner ring raceway surface and the outer ring raceway surface; and a lubricating device (20) which supplies the lubricant to the lubricating path according to rotating speed of the inner ring member (4) about the axis.
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