| 摘要 |
PROBLEM TO BE SOLVED: To provide a rolling device capable of providing excellent wear resistance and long service life even if the device is used under high-speed conditions. SOLUTION: This angular ball bearing comprises an inner ring 1 and an outer ring 2 made of SUJ2 and balls 3 made of silicon nitride. A grease composition G containing calcium sulfonate complex as a thickener is sealed in the clearance part 5 of the angular ball bearing. COPYRIGHT: (C)2004,JPO |
