SU 730-XL

Frequently Asked Questions

Q: Is the SU 730-XL compatible with Yale and Toyota electric pallet jacks?
A: The SU 730-XL fits most standard 4 x 4 load wheel applications on electric lift trucks. Check your jack model against the original equipment manufacturer specification. If your jack currently has a 4 x 4 wheel with a sealed ball bearing and industry-standard press-on or bolt-on hub, this wheel will fit as a direct replacement. Cross-reference the original part number on your jack to confirm compatibility before ordering.

Q: What Shore A hardness rating does the SU 730-XL polyurethane have and how does it affect performance?
A: The SU 730-XL has a Shore A 95 polyurethane hardness rating. This moderate hardness provides good load-carrying capacity while maintaining traction on smooth concrete floors. Higher Shore A (96+) wheels reduce rolling resistance but are more prone to slipping on wet surfaces. Lower Shore A (90-94) offers more grip but generates more heat during extended use. For general warehouse operations, Shore A 95 is the industry standard for load wheels.

Q: How do you diagnose if the SU 730-XL wheel bearing is failing?
A: Warning signs include grinding or squealing noise when rotating the wheel, lateral play or wobble when the wheel is stationary, or visible corrosion around the bearing seal. To test, manually spin the wheel by hand. It should rotate freely for at least 3-5 full turns with no noise or grinding. If rotation stops abruptly or produces grinding sounds, the sealed ball bearing is worn and the wheel assembly should be replaced. Do not continue operating the jack; bearing failure under load can cause the wheel to lock or collapse.

Q: What is the proper installation procedure for the SU 730-XL wheel?
A: Installation depends on your hub type. For press-on hubs, use a wheel puller to remove the old wheel. Clean the hub thoroughly to remove rust or debris. Press the new SU 730-XL wheel straight onto the hub using an arbor press at controlled pressure until the wheel is fully seated against the hub shoulder. Never hammer the wheel onto the hub. For bolt-on hubs, remove the retaining bolts, slide off the old wheel, and install the new wheel by aligning the hub bore and tightening bolts evenly in a cross pattern to the manufacturer torque specification, typically 40-60 foot-pounds.

Q: What is the load capacity and maximum recommended operating temperature for the SU 730-XL?
A: The SU 730-XL is rated for electric lift truck applications with typical floor loads up to 5000 pounds per wheel assembly, depending on the number of load wheels on your truck. Operating temperature range is -10 to +140 degrees Fahrenheit. Temperatures above 140 degrees will soften the polyurethane and reduce load-carrying capacity. Avoid prolonged exposure to direct sunlight or outdoor use in extreme heat, as UV radiation and high temperatures degrade polyurethane faster and reduce wheel lifespan from 18-24 months to 8-12 months.

Q: How should the SU 730-XL wheel be maintained to extend its lifespan?
A: Inspect wheels weekly for flat spots, chunks, or uneven wear. Clean the wheel surface monthly with mild soap and water to remove oils and debris that reduce traction. Do not use harsh solvents or high-pressure washers, which can damage the polyurethane bond. Check bearing seals for corrosion or damage and replace if compromised. Rotate the jack load wheel position every 6 months if the truck has four wheels to distribute wear evenly. Typical wheel life is 18-24 months under normal warehouse conditions before the polyurethane wears down to the steel core.