SU S9149-XL

Frequently Asked Questions

Q: How does the XL compound and XL3 bonding differ from standard wheels?
A: The Cushothane XL compound is a premium polyurethane formulation with higher tensile strength and cut resistance. XL3 bonding agent is applied to a specially prepared steel core surface, creating a molecular-level bond that resists shearing and delamination. The result is a wheel that withstands sharp floor debris, rough concrete edges, and high-cycle repetitive loading better than standard wheels.

Q: What is the significance of the steel core construction?
A: The steel core provides superior rigidity and load distribution compared to nylon cores. Steel cores are preferred in heavy-duty applications where trucks carry sustained maximum loads or operate at high speeds. The one-piece machined steel core ensures concentricity and balance, reducing vibration. Steel is also resistant to cold temperatures, making this wheel suitable for freezer environments where nylon can become brittle.

Q: Are bearing configuration options available for the SU S9149-XL?
A: Yes. Pre-pressed bearing assemblies are available as optional configurations. You can also specify dual or triple wheel setups depending on your truck load requirements and axle design. Consult your equipment documentation to determine the correct bearing type (ball, roller, or tapered) and dual versus single wheel arrangement for your specific model.

Q: What maintenance and inspection schedule should I follow?
A: Inspect wheels monthly for cracks, cuts, and tread separation. Spin the wheel by hand monthly to verify bearing smoothness. Check bearing preload or clearance per your equipment manual. Every 6 months, examine the bond line between the tread and core for any delamination. Bearing repacking or replacement depends on your truck type; consult the service manual. Replace the wheel if cracks exceed 1/8 inch depth or if tread wear exceeds 30 percent of original thickness.

Q: How do I verify that the SU S9149-XL is a correct replacement for my truck?
A: Cross-reference the OEM part number S9149-XL with your truck manual. Confirm wheel diameter, width, and hub bore specifications match your axle. Check load rating; the wheel must support your truck capacity plus any safety margin. If part numbers do not match exactly, contact your equipment manufacturer or a qualified technician before installation to prevent compatibility issues.

Q: What is the typical service life of the SU S9149-XL in a heavy-duty warehouse?
A: With proper maintenance, the SU S9149-XL typically delivers 18 to 30 months of service life in demanding warehouse environments, depending on usage intensity and floor conditions. Superior cut and tear resistance means fewer emergency replacements. High-cycle operations may see shorter life; intermittent use may extend it. Monitor tread depth quarterly and replace when it falls below 25 percent of original or if structural damage appears.