| 摘要 |
A universal joint ( 100 ) comprising a spider ( 102 ) having a trunnion ( 104 ) projecting outward from the spider is provided. A bearing ( 108 ) is disposed over a distal end of the trunnion with a lubricant passageway ( 110 ) disposed within the trunnion and in fluid communication with the bearing. A lubricant pressurizing system ( 112 ) is incorporated within the spider to bias or urge the lubricant through the lubricant passageway and toward the bearing. The trunnion may be tapered along its length and an outer edge ( 366 ) of the end of the trunnion may be radiused. The trunnion and/or bearing may further include a load carrying surface ( 114 and 158 ) comprised of a wear resistant material. The load carrying surface may be smooth or textured to retain a lubricant thereupon. The spider may include a plurality of cross grooves ( 126 ) and/or clearance radii ( 128 ) to aid in installation into the yoke.
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