Product Description
Load Wheel Assembly
Frequently Asked Questions
Q: What is included in the SU 9138-XL-A load wheel assembly?
A: The SU 9138-XL-A is a complete load wheel assembly that includes the polyurethane wheel, the mounting hub, integrated bearings, and bonding components. The -A designation confirms this is the full assembly version ready for installation on the axle.
Q: Does the SU 9138-XL-A come pre-assembled with bearings?
A: Yes. The SU 9138-XL-A features integrated bearings that are pre-installed and factory-sealed. You do not need to remove, inspect, or replace bearings unless the assembly exhibits rolling resistance, noise, or lateral play, which indicates bearing failure requiring full assembly replacement.
Q: How do I install the SU 9138-XL-A onto my electric lift truck?
A: First, lift the truck and support it safely with jack stands. Remove the axle cap if present. Slide the SU 9138-XL-A assembly onto the axle shaft until it seats fully against the mounting flange or shoulder. Secure it with the retaining clip or cotter pin provided by your truck manufacturer. Rotate the wheel by hand to verify smooth rolling with no resistance or noise.
Q: What is the wheel diameter and width of the SU 9138-XL-A?
A: The SU 9138-XL-A specifications include an XL compound polyurethane wheel optimized for electric lift truck front and rear load axles. The exact diameter and width depend on your truck model and application. Verify the wheel size marked on your current assembly or consult your truck documentation before ordering.
Q: What diagnostic steps should I follow if the SU 9138-XL-A wheel exhibits noise or resistance?
A: First, manually rotate the wheel while the truck is lifted. If rotation feels rough, gritty, or requires significant force, the integrated bearings are failing and the assembly requires replacement. If the wheel is flat-spotted or shows visible damage, replace the assembly. A squeaking or chirping sound indicates bearing lubrication failure or seal compromise.
Q: Is the SU 9138-XL-A suitable for cold storage environments?
A: The SU 9138-XL-A polyurethane compound is rated for standard material handling environments. If your facility operates below 32 degrees Fahrenheit, contact us about high traction cold-rated compounds that maintain grip and flexibility in cold storage conditions.