New Gearboxes for Bridge Pass the Load Test
Friday, August 14th, 2009
When Halverson Construction Company was awarded the contract to refurbish the lift machinery on the Joe Page Bridge, they turned to The Gear Works to provide the replacement span lift gearboxes.
Within seven months of receiving the competitively bid gearbox order, The Gear Works successfully designed, manufactured, tested, and delivered two special Model 750 Grizzly Planetary Speed Reducers with 24:1 reduction ratio that met extensive procurement requirements and AASHTO specifications for moveable bridges. As part of the acceptance criteria, each gearbox was required to undergo 100% load testing at the normal operating speed of 5.5 output rpm.
Gear tooth contact patterns were inspected and documented after the load test using a video scope with a flexible camera probe that produces clear digital images.
When your application requires a test, look to The Gear Works to get the best.