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The development of pivot bearing with multiple degrees of freedom: 1st report: Prototype of pivot bearing with two degrees of freedom |
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| Authors: | Shoji Noguchi Hirotoshi Aramaki Tohru Kanada |
| Affiliation: | aDepartment of Mechanical Engineering, Tokyo University of Science, 2641 Yamasaki, Noda-city, Chiba 278-8510, Japan bNSK Ltd., 1-5-50 Kugenuma Shinmei, Fujisawa-city, Kanagawa 251-0021, Japan cDepartment of Mechanical Engineering, Kanto Gakuin University, 1-50-1 Mutsuura-higashi, Kanazawa-ku, Yokohama-city, Kanagawa 236-8501, Japan |
| Abstract: | This paper deals with the prototype of a new pivot bearing having two degrees of freedom. The idea of the pivot bearing is based on a continuous velocity joint (CVJ). The experimental axial stiffness and contact pressure are compared with those determined by theoretical analysis. Then, it is confirmed that the pivot bearing swings smoothly with a range of ±25°. Furthermore, the stiffness of the bearing increases as the swinging angle becomes larger. Therefore, this newly developed pivot bearing may be applied to a parallel mechanism, a joint of robot and so on. |
| Keywords: | Pivot bearing CVJ Parallel mechanism Stiffness Two degrees of freedom Prototype |
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