Repair of Bridge Drive Gear Case for the Steel Industry

Our ability to handle large components, along with our expert gear box knowledge, brought this client from the steel industry to our facility. This repair project required us to repair and rebuild the bridge drive gear case on a crane that moves steel slabs. To make the repairs we applied MIG welding to repair cracks, and buildup bores. We then used our CNC machining capabilities to re-machine the bores to print specifications, machine the ring seal for output shaft, and ream the holes. We then assembled the gear case with all new hardware, re-plumbed with all new plumbing and lube lines, installed bearing seals, pressed gears on shaft, installed idler wheel assembly, and aligned and installed seal ring. This 8.5’ high x 9’ long x 4’ wide gear case was sandblasted before we applied a coating of signal yellow paint. After final inspections and test runs, we delivered this case to the client’s facility in Middletown, Ohio, fulfilling the requirements of this project.

The following table outlines this repair of a bridge drive gear case project. To learn more, please contact us today.


Product DescriptionThis Bridge Drive Gear case is used in a crane moving steel slabs
Drive Gear Repair Capabilities Applied/ProcessesPrimary:
Repair Cracks
Buildup Bores
CNC MachiningMilling, Turning
Re-Machine Bores to Print
Machine Ring Seal for Output Shaft
Ream Holes
Hydraulic Press

Disassembly & Re-AssemblyHardware-Assemble Gear Case w/ All New Hardware
Plumbing-Re-Plumb w/ all new Plumbing & Lube Lines
Install Bearing Races & Seals
Press Gears on Shaft
Install Idler Wheel Assembly
Align & Install Seal Ring
ExpertiseMaster Machinist
Experienced Welders
Equipment Used to Rebuild PartManual Lathe CNC Mill
Overall Part DimensionsLength, Width, Diameter
8.5′ high x 9′ long x 4′ wide
Material FinishPaint Safety Yellow
In process testing/inspection performed
In Process Inspection
NDT TestingDry Mag particle/ Dye Penetrant
Final Inspection/Test Run
Industry for UseSteel Industry
Delivery/Turnaround Time3-4 Weeks After Receipt of Order
Delivery LocationMiddletown, Ohio
Standards MetCustomer Specifications, 2D CAD Drawing
Product NameBridge Drive Gear Case
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