To almost completely remove metallic wear debris mixed in lubricating oil, thereby preventing an unfavorable influence upon an oil seal due to the metallic wear debris.
An outer ring 32 (on the low speed side) is rotatably supported in a housing 1, and a high speed side shaft 17 is rotatably supported eccentrically with respect to the outer ring 32. Two guide rollers 37a, 37b and a movable roller 38 which moves when transmitting torque are provided between the outer ring 32 and the high speed side shaft 17. Oil seals 52, 51 for sealing the lubricating oil by making sliding contact with a low speed side shaft 3 and the high speed side shaft 17, are attached to the inner walls of the housing 1, 2. Metal removing magnets 61, 62 which attract the metallic wear debris mixed in the lubricating oil for removal are located at the portions adjacent to the oil seals 51, 52 where the lubricating oil can stick to the magnets.
OMUTSUNO SATOSHI
OKANO HIDEO
