| 摘要 |
A contact velocity universal joint has inner and outer members, balls and a cage. The inner member and the outer member are provided with undercut-free first outer running grooves and opposing first running grooves and second outer running grooves and opposing second inner running grooves starting from different sides of the joint. To achieve the required guiding conditions for the cage, the cage control angle beta is always greater than 7 DEG , with the cage not requiring any guidance by the outer or inner members.
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