End Truck & Trolley Parts | Ace World Companies

When an overhead crane stops moving across the runway or the trolley locks up over the load, the cause almost always traces back to a worn wheel, a failed bearing, a seized brake, or a drive component nearing the end of its service life. Sourcing the right end truck parts quickly is the difference between a half-shift of downtime and a multi-week production stall. Ace World Companies manufactures and supplies end truck parts, trolley assemblies, crane travel wheels, brake assemblies, and drive components for overhead bridge cranes, gantry cranes, and specialty material handling systems across every industrial sector.

Our team has spent more than three decades building, retrofitting, and maintaining crane travel systems for steel mills, aerospace plants, shipyards, and heavy manufacturing facilities. That experience shapes how we approach every end truck parts request, whether you need a single replacement wheel pressed to your existing axle or a complete crane end truck assembly engineered to match a legacy bridge girder.

Crane End Truck Assemblies and Replacement Components

A crane end truck carries the entire weight of the bridge, the trolley, the hoist, and the load, then translates that weight into smooth travel down the runway. Worn wheels, failed bearings, cracked side frames, and tired drives all compromise that motion. Ace supplies end truck assemblies and individual components for top-running and underhung configurations, single-girder and double-girder bridges, and capacities from 5 tons through 500 tons.

Our overhead crane end truck offering covers the full assembly and every wear component within it:

End truck assemblies built to OEM dimensions or reverse-engineered from existing equipment, with welded or bolted side frame construction
Crane travel wheels, including driven wheels, idler wheels, double-flanged and tapered profiles, forged steel and ductile iron, in standard tread widths and custom diameters
Bearings and shafts for wheel assemblies, drive axles, and idler positions, including sealed cartridge bearings and replacement bearing housings
End truck brake assemblies such as shoe brakes, disc brakes, and thruster-actuated brakes matched to your bridge speed and duty class
End truck drives, including gear motors, brake motors, and complete drive packages compatible with VFD control upgrades from our crane controls and control panels program
Side frames, end caps, axles, and bumper assemblies machined to the tolerances required for smooth wheel rotation and rail tracking

If you have a part number, a set of dimensions, or even photographs of a worn wheel and the existing rail, our engineers can identify or build the correct crane replacement parts for your system. Many of these components ship directly from our end truck production line.

Crane Trolley Assemblies and Trolley Parts

The trolley moves the hoist across the bridge, and it shares many of the same wear components as the end truck. We supply complete crane trolley assemblies and individual overhead crane trolley parts for monorail systems, top-running trolleys, low-headroom configurations, and underhung trolleys.

Trolley parts available through Ace include trolley wheels and idler wheels, drive units and trolley gear motors, brake assemblies, shafts and bearings, frame components, and bumpers. We also build trolley systems matched to specific electric wire rope hoists when the original trolley has reached the end of its service life or when the hoist is being upgraded to a higher capacity.

For specialty applications, our team supports parts and full assemblies for transfer cars and translation cars, unusual span configurations, and high-duty-cycle bridges where standard trolley components do not last.

Modernization, Retrofit, and Upgrade Components

End truck and trolley wear is often the first signal that a larger modernization is overdue. Older bridge drives running on contactor control, single-speed motors, or worn mechanical brakes are strong candidates for variable frequency drive retrofits, soft-start packages, and modern braking systems. Our crane modernization services team works directly with our parts division to evaluate whether a like-for-like replacement, a retrofit kit, or a full travel system upgrade delivers the best long-term value.

Modernization parts we routinely supply include VFD-compatible drive motors, encoder packages, updated brake assemblies, replacement gear reducers from our power transmission and gearbox program, and complete electrical refits for end truck and trolley travel systems.

Why Plant Engineers Source End Truck Parts from Ace

American-made manufacturing. More than 90% of our crane parts are designed, machined, and assembled at our U.S. facilities, which keeps lead times short and quality under our direct control.
OEM and aftermarket support. We service Ace overhead bridge cranes and competitor systems with equal capability.
Engineering depth. Our team can match part numbers, interpret legacy drawings, and reverse-engineer obsolete crane truck components when original documentation is gone.
Compatibility focus. Replacement end trucks, trolleys, wheels, and drives are built to integrate with your existing bridge structure, runway, and hoist package.
Fast turnaround. Common wheels, bearings, and brake assemblies ship from inventory, and custom builds move quickly through our production schedule.

Request a Quote for End Truck & Trolley Parts

Send us a part number, a model name, a set of dimensions, or a description of the worn component. Our team will confirm the specification, check availability, and provide a quote, often the same day. For active downtime, call 800-431-4223 and ask for parts, or email sales@aceworldcompanies.com.

Request A Quote

Ready to discuss a specific application, a fleet-wide wheel replacement, or a travel system modernization? Contact the Ace World Companies team and we will route your inquiry to the right engineer.