Patents Assigned to Trio Tool Company
  • Apparatus for preloading pinion bearing
    Patent number: 5579570
    Abstract: An apparatus for preloading a bearing set that supports a pinion shaft in a differential gear assembly includes a low torque drive assembly for rotating the pinion shaft connected to a high torque drive assembly for tightening a pinion nut. A sensor assembly measures the drag torque of the rotating pinion shaft as the pinion shaft nut is being tightened to indicate bearing preload.
    Type: Grant
    Filed: February 6, 1995
    Date of Patent: December 3, 1996
    Assignee: Trio Tool Company
    Inventor: Duane J. Bonvallet