UpComing Tradeshows

November 27-29, 2018
SPS IPC Drives 2018
Nuremberg, Germany

November 28-30, 2018
International Work Boat Show 2018
New Orleans, LA

December 04-06, 2018
Power-Gen 2018
Las Vegas, NV

Back To Newsroom

Nuttall Gear Custom Heavy-Duty Gearboxes for Swing Bridges

Swing Bridge

The Lindsey Warren bridge that spans 3 miles across the Alligator River in North Carolina recently underwent a major renovation. Originally built in 1962, the two-lane bridge carries U.S. 64 vehicular traffic between Tyrrell and Dare counties. The North Carolina Dept. of Transportation approved the renovation project that included the mechanical and electrical components positioned below the bridge’s center swing span that allows marine traffic to pass through the bridge.

Nuttall Gear designed and manufactured two new enclosed gearboxes for the bridge. Both units featured fabricated steel housings and were load tested to 150%. All welds were inspected by an Independent Certified Weld Inspector (CWI). Special center distances were required.

  • Primary Parallel Shaft Differential Reducer:
    Input rating: 25 HP @ 870 RPM, Reduction ratio: 30.41:1
  • Wedge Machinery Parallel Shaft Reducer:
    Input rating: 7.5 HP @ 870 RPM, Reduction ratio: 28:1
Custom Heavy-Duty Gearboxes


  • Custom-designed enclosed reducers
  • Special center distances
  • Fabricated steel housings
  • Load tested to 150%

Contact Information

Nuttall Gear
2221 Niagara Falls Blvd.
Niagara Falls, NY 14304-5710
Phone: 1-716-298-4100
Email: info@nuttallgear.com