Product Description
Load Wheel
Frequently Asked Questions
Q: What does the XL designation mean on SU 9109-XL?
A: XL indicates extra-large wheel diameter. SU 9109-XL is designed for electric lift trucks that require larger wheels to provide increased ground clearance or to match specific truck geometry. The larger diameter reduces load pressure per square inch of tread contact, which can extend tire life on rough or uneven surfaces.
Q: Can I use SU 9109-XL to replace standard SU 9109?
A: No. Do not substitute SU 9109-XL for the standard SU 9109. The XL wheel has a larger diameter and will change the truck ride height, handling characteristics, and steering geometry. Using the wrong wheel size can cause the truck to be unstable or result in frame interference. Always verify your truck model requires the XL variant before ordering.
Q: What bearing and mounting specifications does SU 9109-XL have?
A: SU 9109-XL features double-sealed precision deep groove bearings identical to the standard SU 9109 and uses axle pin mounting. The increased wheel diameter does not change the bearing type or mounting method. Installation procedure is the same as standard wheels: remove cotter pin, slide off old wheel, install new wheel, and secure with cotter pin and axle pin.
Q: Does SU 9109-XL have load capacity limitations compared to standard SU 9109?
A: SU 9109-XL maintains the same load capacity as the standard assembly. However, the larger wheel diameter distributes the load over a larger tread area, which can reduce tread wear rate on rough floors. Always verify load capacity with your truck manufacturer documentation, as the truck frame and axle may have different limits than the wheel assembly itself.
Q: Is SU 9109-XL maintenance different from standard wheels?
A: No. SU 9109-XL maintenance is identical to standard wheels. The bearings are sealed and require no lubrication. Inspect the polyurethane tread monthly for wear and damage. Check the axle pin monthly to ensure the cotter pin is intact and the wheel does not wobble. Replace the entire assembly when tread wear exceeds one-quarter inch or when bearings fail.
Q: What warehouse floor types is SU 9109-XL rated for?
A: SU 9109-XL polyurethane tread works on concrete, asphalt, sealed wood, and smooth warehouse epoxy floors. The larger diameter wheel may perform better on slightly rough or uneven concrete than standard wheels. It is not rated for outdoor muddy or gravel surfaces unless the truck manufacturer specifically approves XL wheels for outdoor use.