With decades of experience, J.R. Smith Welding Service, Inc. specializes in welding and machining repairs for steering, axle, and suspension systems on Euclid and Hitachi off-road mining haul trucks. Our services include:

• Removing frozen king pins and set screws
• Welding and line boring trailing arm–style axle and spindle king pin bores, including removal and replacement of all factory wear bushings
• Hand weld build-up and refacing of thrust bearing faces on trailing arms and their opposing spindle bearing surfaces
• Hand weld build-up and reboring of rear trailing arm bores in truck frames and rear axle housings, including re-machining snap ring grooves and installing factory spherical bearings

We perform these heavy-duty reconditioning repairs on anthracite and bituminous coal mining machinery year-round, even in harsh outdoor conditions, consistently delivering results that exceed customer expectations. All completed work is warranted for durability, fit, and proper operation.

We proudly serve industries across Pennsylvania, New Jersey, New York, Delaware, and Maryland, with the ability to travel further when specialized, certified repair solutions are needed.