| 摘要 |
A universal joint has an outer joint member with circular grooves in the inner surface of a spherical cavity therein and an inner joint member is positioned within the cavity. The outer surface of the inner joint member is also provided with grooves and torque transmitting balls are received in corresponding grooves of the outer and inner joint members. The centerlines of the two outer joint member circular grooves are located in planes which are parallel with each other and parallel to the axis of the outer joint member and these planes are positioned equidistantly on opposite sides of the rotary axis. The inner joint member has partially circular or arcuate grooves arranged in pairs such that their centerlines extend in planes perpendicular to the planes of the outer joint member grooves.
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