Trunnion yoke and hubs were machined to OEM specifications within a 3-day emergency timeline. The components were part of a hydro dam assembly that required urgent repair.  

Project:

• Part: Trunnion Yoke + Hubs (2x)
  
• Details: Hub assembly and yoke were heat treated per AWS D1, 5
• Customer: Industrial Equipment Manufacturer

Challenges:

• Emergency response and round-the-clock machining schedule.
• Complex pre-machining setup.
• Stringent technical specifications for the bore dimensions, height dimensions, tolerances, and Ra finishes.

Engineered Solutions:

Trunnion Yoke:

• Machine base plate prior to machining to ensure flatness.
• Line bore holes per print and ensure parallelism.
• Machine surfaces per print and Ra finish.
• Drill and tap 4 places on the side.
• Machine 2 drain pockets on the base.
• Record dimensions prior to and after machining.

Trunnion Hubs (2x):

• Setup in vertical and ensure bottom face is true.
• Machine top of hubs per OEM print.
• Machine bore per OEM print.
• Record height dimensions, tolerance, and Ra finish before and after machining.

Results:

• All OEM specifications were achieved.
• Completed all machining within a 3-day rush repair schedule.