Product Description
Load Wheel
Frequently Asked Questions
Q: What is the difference between SU 673-XL and SU 673-XL-A?
A: SU 673-XL is the wheel only (no bearings, axle, or hardware). SU 673-XL-A is a complete assembly including sealed bearings and mounting hardware. Use SU 673-XL if your existing bearings and axle are in good condition and you only need to replace the worn wheel.
Q: What bearing size and type does the SU 673-XL wheel accommodate?
A: The SU 673-XL wheel has a 2.238 inch bore diameter (56.85mm) designed for standard sealed ball bearings (typically SKF or equivalent). It accepts 6205 or 6206 series deep groove ball bearings depending on your truck width. Verify your current bearing part number before ordering replacement bearings separately.
Q: Can I use the SU 673-XL on older Yale or Hyster models?
A: Possibly, but verify bore diameter and tread width first. The SU 673-XL is designed for post-1995 electric lifts. Older models may have different bore sizes (such as 2.0 inch or 2.5 inch) or metric bores. Measure your existing wheel bore and compare to the 2.238 inch specification. If it does not match, do not force installation.
Q: What is the material composition and wear resistance of this wheel?
A: The SU 673-XL is molded from high-durometer polyurethane or synthetic rubber (typically 85-92 Shore A hardness) bonded to a steel core. This provides excellent grip, shock absorption, and resistance to oils and mild acids. It is not suitable for outdoor UV exposure or extreme temperatures above 140 degrees Fahrenheit.
Q: How do I install the SU 673-XL wheel onto my existing axle?
A: Press the wheel onto the axle using a bearing puller in reverse (as a press) or take it to a bearing shop for pressing. The bore is a light interference fit; do not attempt to hammer it on. Ensure the wheel sits fully seated against the bearing shoulder. After installation, rotate freely and check for runout before operating the truck.
Q: Can the tread be resurfaced or does it require replacement?
A: No resurfacing is possible. Once tread depth is less than 1/8 inch or flat spots appear, replace the entire wheel. Attempting to sand or grind the tread will damage the bond between the rubber and core, leading to separation and safety hazards.