| 摘要 |
PURPOSE: A low torque roller bearing is provided to delay or prevent the sliding surface of a roller and the protruding surface of an inner wheel from being scorched and stuck when the roller bearing is rotated by being mounted in a device as the flow grooves act as a flow passage of lubricating oil. CONSTITUTION: A low torque roller bearing(100) comprises an outer wheel(130), an inner wheel(110), and a roller(150). An outer orbit(131) is formed in the internal diameter of the outer wheel. The inner wheel is spaced from the outer wheel inwardly in a radical direction, and an inner orbit(111) is formed in the outer diameter of the inner wheel. The inner wheel includes a protruding unit(113) in which a protruding surface is formed inside. The roller includes a rolling surface, a sliding surface, and a plurality of first flow grooves. |
