| 摘要 |
<p>PROBLEM TO BE SOLVED: To properly set a preload. SOLUTION: This double row angular bearing A has an outer race 1 having raceway tracks 1a of two rows, two inner races 2 having respectively raceway tracks 2a corresponding to the respective raceway tracks 1a of the outer race 1, and a plurality of balls 3 arranged in two rows between the respective raceway tracks of the outer race 1 and the respective inner races 2, and is used in a state of applying the preload in the mutually approaching direction to both inner races 2, and is constituted, so that a pressure sensor 8 is arranged in the area between the raceway tracks 1a of the two rows in an outside diameter face of the outer ring 1 for measuring a deformation degree of the outer race 1 corresponding to the size of the preload; and the preload is measured directly by this pressure sensor 8, and the preload can be set properly.</p> |
