| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a rotary bearing which enables to make compact a plunger pump and a hydraulic motor and to facilitate their assembly. SOLUTION: Between a circular arc bearing ring 21 and a circular arc holder 23 for holding rolling bodies 25 along a rolling surface 21a of the bearing ring 21, a restricting mechanism 30 for restricting a rotating amount of the holder 23 is inserted to prevent fall of the rotating bodies by slippage of the holder 23.</p> |
