| 摘要 |
<p>A resin retainer for a tapered roller bearing and the tapered roller bearing which are configured such that a space in the tapered roller bearing is reduced, stir resistance of lubricating oil contained in the bearing is reduced, and easiness of mounting of tapered rollers into the bearing is enhanced. A resin retainer (20) for a tapered roller bearing is provided with a small-diameter annular section (21), a large-diameter annular section (22), and struts (23) for interconnecting both the annular sections (21, 22). The struts (23) are each provided with a pair of circumferential side surfaces (25) respectively having roller guide surfaces (27), and also each provided with an inner peripheral surface (26) having a circumferential width smaller on the large-diameter annular section (22) side than on the small-diameter annular section (21) side. Between adjacent struts (23) is provided a retaining region (Ar) having, between the opposed circumferential side surfaces (25) of the adjacent struts (23), an outer-diameter-side pocket width (W1) and an inner-diameter-side pocket width (W2) which are set less than a diameter (D) of the tapered rollers.</p> |
