| 摘要 |
PURPOSE:To make it possible to perform automatic measurement of the axial gap of a double row tapered roller bearing, by applying a load to the outer ring of the bearing which is positioned by a centering member that is freely lifted and lowered through a moving arm, and determining the gap based on the amount of a displacement of the outer ring. CONSTITUTION:When a double row tapered roller bearing 11 is supplied by a loading device, a centering member 17 that is freely lifted and lowered is lifted together with a piston rod 13a, a lifting body 14, and the like. A lower inner ring pushing piece 20 is inserted into the inner ring of the bearing 11. An upper inner ring pushing piece 27 is further inserted into the inner ring, and the bearing 11 is positioned. Under this state, a lower loading arm 41, to which an elastic force of a spring 50 is applied through a piston 58, is moved with a shaft 44 as a center. A load is applied to the outer ring of the bearing 11, and the amount of displacement of the outer ring is electrically measured. By the same way, the amount of displacement when the load is applied is measured through an upper loading arm 38. The axial gap is determined by the difference between two amounts of displacements. In this constitution, the axial gap of the double row tapered roller bearing can be automatically measured. |
