Product Description
Load Wheel Assembly
Frequently Asked Questions
Q: What is included with the SU 250-A load wheel assembly?
A: The SU 250-A is a complete wheel assembly and includes the polyurethane tread wheel, shoulder bearings, axle hardware, and retaining clips. It arrives as a plug-and-play unit and does not require bearing installation or hub preparation. Simply remove your old wheel assembly and bolt on the SU 250-A.
Q: How does the SU 250-A assembly differ from buying a wheel and bearings separately?
A: The SU 250-A is pre-assembled, pre-lubricated, and factory-tested. Buying separately requires field assembly and bearing press-fitting, which increases labor cost and risk of installation error. The assembly approach eliminates bearing misalignment and ensures consistent quality.
Q: Does the SU 250-A require lubrication after installation?
A: The SU 250-A ships pre-lubricated with lithium grease for one year of normal duty. After 12 months of operation, inspect the bearing seals for wear and relubricate if dry. Do not over-grease; excess grease heats the bearings. Apply one pump of a standard lithium-soap grease to each bearing seal.
Q: Can I replace just the wheel on the SU 250-A assembly or must I replace the whole unit?
A: The SU 250-A wheel is pressed onto the hub and is not serviceable in the field. If the tread is worn but bearings are still good, you must purchase a new SU 250-A assembly. This design prioritizes bearing protection over wheel-only replacement.
Q: Is the SU 250-A compatible with the SU 250 single wheel on the same truck?
A: Yes, you can mix SU 250 wheels and SU 250-A assemblies on the same truck as long as all wheels are the same diameter. The diameter must match across all four wheels to prevent steering and load distribution problems. Do not mix different sizes on front and rear or left and right.
Q: What is the warranty on the SU 250-A assembly?
A: The SU 250-A carries a two-year bearing warranty against manufacturer defect and a one-year tread warranty for normal duty wear. Damage from overloading, impact, or improper installation does not qualify. Bearing seals are warrantied for one year only.