Product Description
The SU S530 Load Wheel from Liftsplus.com is a polyurethane dual tandem assembly for electric lift truck applications, featuring a 3.25 inch outer diameter, 2.047 inch bore, and 2.44 inch tread width. Hardness rated at 93A Shore A, engineered for durable long-run performance and compatibility with 9–10 inch fork widths. Supersedes SU S530-XL and equivalents SU S530-A, ensures cross-model interchangeability.
Specifications: 3.250 inch diameter x 1.875 inch width (3.250" x 1.875" | 3.25 x 1.88 wheel | 3-1/4 x 1-7/8 | 82.55mm x 47.63mm)
Specifications
Material & Construction
| Tread Material | Polyurethane, high-wear compound |
Part Numbers
| Manufacturer Part Number | SU S530 |
| Cross-Reference Part Numbers | Supersedes SU S530-XL, SU S530-XL-A |
| Equivalent Part Numbers | SU S530-A |
| Replaces | SU S529, SU S529-A, SU S529-XL |
| OEM Part Number | SU S530 |
Wheel Dimensions
| Material | Cushothane XL |
| Outside Diameter | 3.25 |
| Inside Diameter | 1.938 |
| Width Side to Side | 1.875 |
| Bore Depth | 0.591 |
| Hub Width | 1.875 |
| Bore Outside Diameter | 2.0467 |
Frequently Asked Questions
Q: What does it mean that SU S530 supersedes SU S530-XL?
A: Superseding means SU S530 is the current production replacement for the discontinued SU S530-XL model. SU S530 has the same physical dimensions and performance but uses updated polyurethane formulation (high-wear Cushothane XL compound). If your equipment originally used SU S530-XL, order SU S530 as the direct replacement. They are functionally equivalent and interchangeable.
Q: Is SU S530 equivalent to SU S529 or SU S529-A?
A: SU S530 is not directly equivalent to SU S529. SU S530 is a different wheel design with a 1.875-inch width (versus 6 inches for S529) and is rated for 9 to 10 inch fork widths. SU S530 replaces SU S529, SU S529-A, SU S529-XL, and SU S529-XL-A as the newer standard. Always verify your carriage width before ordering to ensure the 1.875-inch wheel fits your equipment.
Q: What is the 93A Shore hardness of SU S530 and how does it compare to S529 wheels?
A: SU S530 is 93-A Shore hardness (softer than both SU S529 at 95-A and SU S529-XL at 97-A). The softer compound provides better grip and shock absorption, especially on uneven or outdoor surfaces. SU S530 is designed for longer wheel life and smoother operation than S529 wheels. Do not mix S530 with S529 wheels on the same truck.
Q: What is the exact bore diameter and diameter of SU S530?
A: SU S530 has a 3.25-inch outer diameter and 2.047-inch bore diameter. The width is 1.875 inches (also called 2.44-inch tread width in some specs). Before installation, verify your carriage has a 2.047-inch bore to ensure the wheel mounts properly. Measure the fork width to confirm 9 to 10 inch fit before ordering.
Q: Can I install SU S530 on equipment that originally used SU S529-A or SU S529-XL-A assemblies?
A: No. SU S530 has a 1.875-inch width while S529 wheels are 6 inches wide. If you bolt a 1.875-inch wheel onto a carriage designed for 6-inch wheels, there will be excessive side play and the wheel will not seat properly. Also, SU S530 is 93-A hardness (softer), not compatible with 95-A or 97-A wheels on the same truck. Mixing widths and hardness will cause damage and safety issues.
Q: How do I diagnose if SU S530 wheels need replacement?
A: Signs of wear include flat spots on the tread, visible cracking or delamination in the polyurethane, slipping or loss of traction under load, and reduced wheel diameter (below 3.0 inches). Rotate the wheel by hand and listen for grinding or resistance, which indicates bearing failure. Inspect for oil or chemical damage (swelling or softening of the tire surface). If any defect is found, replace the wheel immediately.