Planetary roller power transmission device
Abstract:
A planetary roller power transmission device includes: a stationary ring; a sun shaft; planetary rollers provided between the stationary ring and the sun shaft so as to be pressed against them; a carrier that supports the planetary rollers so that the planetary rollers are rotatable and that rotates in conjunction with revolution of the planetary rollers; and a disk-shaped support plate supporting an oil-containing member that can be in contact with a peripheral surface of each planetary roller. Axial free movement of the support plate is restricted by the planetary rollers and the sun shaft or a member that is integrated with the sun shaft so as to be integrally rotatable. The support plate is structured so as to be rotatable relatively to the sun shaft in conjunction with rotation of the sun shaft due to contact with the sun shaft or the member.
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