Product Description
Load Wheel
Frequently Asked Questions
Q: Can the SU 631-XL Load Wheel be used as a standalone replacement?
A: The SU 631-XL is the wheel component only. To use it, you will need the existing wheel hub and bearing assembly. If the hub is cracked or bearings are shot, order the complete SU 631-EZ-A assembly instead. Using the SU 631-XL wheel alone requires functioning hub hardware.
Q: What is the cross-reference for the SU 631-XL wheel?
A: The SU 631-XL is equivalent to Yale part 580044660 and Hyster part 1326354. All three are 5-inch polyurethane wheels with 2-inch tire depth. Verify the hub bore diameter is 5/8 inch before ordering; some models use 3/4 inch bore instead.
Q: How do I install the SU 631-XL wheel on my truck?
A: Remove the cotter pin and retaining nut from the axle. Slide the old wheel off. Clean the axle shaft and apply a light coat of grease. Slide the SU 631-XL onto the shaft, hand-tighten the retaining nut, then tighten an additional 1/8 turn. Install the cotter pin. Spin the wheel by hand; it should rotate freely with no binding.
Q: What wheel size and load rating does the SU 631-XL have?
A: The SU 631-XL is a 5-inch diameter wheel with a 2-inch polyurethane tire. Load capacity is 3500 pounds per wheel on tandem-wheel configurations and 2000 pounds on single-wheel setups. Operating temperature range is 14 to 140 degrees Fahrenheit. Not rated for outdoor use or extreme cold storage below 0 degrees Fahrenheit.
Q: When should the SU 631-XL wheel be replaced?
A: Replace the wheel when the tire is worn below 1/2 inch depth, if there are flat spots or chunks missing from the polyurethane, or if you hear grinding or squealing. Typical lifespan is 18 to 24 months in warehouse use at full load. Light-duty use may extend life to 30 months.