| 摘要 |
<p>PROBLEM TO BE SOLVED: To avoid a phenomenon that a pre-load at the time of providing rotating torque to be demanded becomes excessive or short and stably secure characteristics such as seizure resistance and rigidity regardless of state in assembling to a using object on a conical roller bearing. SOLUTION: A conical roller bearing 1 is made into a form called positive off-set making a rectilinear distance Lr in the radial direction to a flat surface X along a large end surface of an inner ring 2 from a circumscribed conical cone center P2 of each of conical rollers 4 at the time of a free state where a pre-load is not given. Thereafter, concerning quantity of the positive off-set, it is controlled to be 0.06<=(Lr-Li)/ (Lr+Li)/2}<=0.6.</p> |
