Product Description
SU S9812-XL-A Load Wheel Assembly for electric lift trucks features a 5.00 inch diameter, 2.875 inch tread width, and 2.047 inch bore with HeatSink™ aluminum hub and Cushothane® XL 97A polyurethane compound, providing high duty cycle performance and extended wear life. Cross-references include Superior Tire & Rubber V500878 and equivalent OEM part numbers for Crown, Raymond, and HYG lift trucks.
Specifications: 3.250 inch diameter x 6.010 inch width (3.250" x 6.010" | 3.25 x 6.01 wheel | 3-1/4 x 6.01 | 82.55mm x 152.65mm)
Specifications
Material & Construction
| Tread Material | Polyurethane |
| Tread Compound | Cushothane XL 97A |
| Hub Material | HeatSink Aluminum |
| Bonding Technology | XL3™ Bonding with no bond separation guarantee |
Wheel Dimensions
| Outside Diameter | 3.25 inches (82.55mm) |
| Width (Side to Side) | 6.01 inches (152.65mm) |
| Bore Diameter | 2.047 inches |
| Tread Width | 2.875 inches |
| Inside Diameter (Hub) | 1.938 inches |
| Bore Depth | 0.584 inches |
| Hub Width | 6.01 inches |
Performance Characteristics
| Duty Cycle Performance | High |
| Extended Wear Life | Yes |
| Heat Dissipation Hub | Yes |
Part Numbers
| Manufacturer Part Number | SU S9812-XL-A |
| Factory-Spec Cross-References | Superior Tire & Rubber V500878, Crown V509150, Raymond 632-052, Hyster V500458 |
| Original Equipment Number | SU 9812-XL |
| Supersedes | SU 9812 |
Frequently Asked Questions
Q: What are the cross-reference part numbers for the SU S9812-XL-A?
A: The SU S9812-XL-A is factory-spec equivalent to Superior Tire and Rubber V500878, Crown V509150, Raymond 632-052, and Hyster V500458. These part numbers reference the same 3.25 inch by 6.01 inch load wheel assembly with Cushothane XL polyurethane compound and aluminum hub. Always verify your lift truck manufacturer designation and current wheel part number before substituting equivalents.
Q: What is the HeatSink aluminum hub feature?
A: The HeatSink aluminum hub is designed to dissipate bearing friction heat away from the wheel bond line, extending wheel assembly life in high duty cycle applications. Aluminum naturally conducts heat better than steel, reducing thermal stress on the polyurethane-to-hub bond. This technology is especially beneficial in continuous operation environments where sustained wheel friction generates significant heat.
Q: Does the SU S9812-XL-A use XL3 Bonding technology?
A: Yes. The SU S9812-XL-A uses XL3 Bonding technology with no bond separation guarantee. This advanced adhesive and mechanical bonding process creates a permanent wheel-to-hub connection that resists separation under load cycling and thermal stress. The no bond separation guarantee means the wheel will not delaminate from the hub during normal use within the rated load capacity.
Q: Is the SU S9812-XL-A compatible with Crown, Raymond, and Hyster lift trucks?
A: The SU S9812-XL-A is compatible with Crown, Raymond, and Hyster lift truck models that originally came with a 3.25 inch by 6.01 inch load wheel assembly. The factory-spec cross-reference part numbers confirm compatibility with these original equipment systems. However, spindle shaft designs and bore specifications can vary by model year and series. Always verify your current wheel specifications match the SU S9812-XL-A before ordering.
Q: What does Cushothane XL 97A polyurethane mean?
A: Cushothane XL refers to a proprietary polyurethane compound engineered for extended wear life. The 97A designation indicates Shore A durometer hardness at 97, which provides the balance between load support and grip. Higher durometer equals harder compound and longer wear life. The 97A hardness is optimized for electric lift truck load wheels operating in standard warehouse conditions.
Q: How should the SU S9812-XL-A be stored when not in use?
A: Store the wheel assembly in a cool, dry location away from direct sunlight and extreme temperatures. Protect the polyurethane tread from contact with oil, grease, and solvents as these can degrade the material. Keep wheels upright or suspended; prolonged contact with concrete floors can cause flat-spotting over extended storage periods.
Q: What is the typical lifespan of the SU S9812-XL-A?
A: Wheel lifespan depends on load capacity, operating environment, and maintenance practices. The Cushothane XL compound and XL3 Bonding technology are designed for extended wear life in high-duty-cycle applications. Regular inspection for tread wear, cracks, or flat-spotting helps maximize service life. Replace wheels when tread material is visibly worn or when wheel diameter is reduced more than 0.1 inch from original specifications.
