Product Description
Load Wheel Assembly
Frequently Asked Questions
Q: What is the SU S640-A load wheel assembly rated for?
A: The SU S640-A is an electric lift truck wheel component. Load capacity depends on bearing type and axle configuration. Verify your equipment manual for specific weight distribution limits. Do not exceed the load rating or bearing will fail prematurely.
Q: How do I diagnose if the SU S640-A needs replacement?
A: Replace the wheel if you observe flat spots on the tread, visible cracks or chunks missing from polyurethane, excessive lateral wobble when spun by hand, or if the bearing does not rotate freely. Grinding noise indicates internal bearing damage. Do not operate with a failing wheel assembly.
Q: What tools are needed to install the SU S640-A?
A: You need socket wrenches to remove axle fasteners, a bearing puller if the bearing is press-fit, and jack blocks to safely support the truck. Do not work under the truck without proper blocking. Inspect the axle bore for corrosion or damage before installing the new wheel.
Q: Can the SU S640-A tread be repaired or resurfaced?
A: No. The SU S640-A polyurethane tread is vulcanized to the hub core and cannot be machined or repaired. Once the tread wears thin or sustains damage, the entire wheel assembly must be replaced.