| 摘要 |
PURPOSE:To improve the loading capacity and reduce dimension by forming the inner peripheral surface of an intermediate member so as to contact one-side line contact with the outer peripheral surface of a shaft member, allowing the coincidence with the diameter of the shaft member and the inclination of the intermediate member. CONSTITUTION:In the orthographic projection drawing in the third angle arrange ment, the outer peripheral surface of the shaft member 2 such as feeding shaft which is rotatable and does not shift in the axial direction and the inner periph eral surface of an intermediate member 3 consisting of a ball bearing inclined by a prescribed angle alpha for the shaft member 2 are formed in coincidence according to the diameter D of the shaft member 2 and the tilt angle alpha, and the line contact C11-C12, C21-C22, and C31-C32 can be obtained by the contact of the outer peripheral surface of the shaft member 2 and the inner race 3 of the intermediate member 3. When the shaft member 2 is revolved in this state, the housing onto which the outer race 3a of the intermediate member 3 is installed in revolution-disabled state shifts rectilinearly with a sufficient load capacity. Therefore, the load capacity can be improved, and the dimension can be reduced by that portion.
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