Product Description
LOAD WHEEL 85A
Frequently Asked Questions
Q: What does the 85A durometer rating mean for the SU S636-EZ load wheel?
A: The 85A rating indicates polyurethane hardness measured on the Shore A scale. 85A is a medium-hard compound that balances grip on smooth warehouse floors with wheel longevity. Softer compounds wear faster, harder compounds reduce traction and increase heat generation.
Q: Is the SU S636-EZ compatible with both 4-bolt and 6-bolt axle brackets?
A: The SU S636-EZ is designed for 4-bolt mounting only. If your truck uses 6-bolt axle brackets, you will need the SU S638 model instead. Attempting to mount the SU S636-EZ on a 6-bolt bracket will result in assembly misalignment and rapid bearing failure.
Q: What vehicles use the SU S636-EZ 85A load wheel as original equipment?
A: The SU S636-EZ is original equipment on Yale MPH060 and Hyster E3.00-E3.50 electric pallet jacks manufactured between 2010 and 2019. Cross-reference your truck model number on the data plate to confirm before ordering.
Q: What wheel diameter and load capacity does the SU S636-EZ provide?
A: The SU S636-EZ is a 5-inch diameter wheel rated for 2500 lbs per wheel pair. Do not use on trucks rated for higher loads without verifying axle specifications. Overloading will cause bearing failure and wheel splitting.
Q: How often should the SU S636-EZ be regreased or maintained?
A: The SU S636-EZ bearings are sealed and require no routine greasing. Inspect the wheel every 400 operating hours for cracking and flat spots. If the wheel develops side-to-side play exceeding 0.125 inches, the bearing is worn and the assembly must be replaced.