Product Description
Polyurethane load wheel assembly for electric lift trucks utilizing a shoulder bearing design, with 5 inch outside diameter, 2.88 inch tread width, and 2.44 inch bore diameter. Constructed from 306 compound polyurethane rated Shore 97A, designed for heavy-duty applications, and compatible with electric lift truck parts. Manufacturer part number SU S629-XL-A.
Specifications: 3.250 inch diameter x 5.937 inch width (3.250" x 5.937" | 3.25 x 5.94 wheel | 3-1/4 x 5.937 | 82.55mm x 150.80mm)
Specifications
Material
| Wheel Compound | 306 polyurethane |
Part Numbers
| Manufacturer Part Number | SU S629-XL-A |
Wheel Dimensions
| Material | Cushothane XL |
| Outside Diameter | 3.25 |
| Inside Diameter | 1.938 |
| Width Side to Side | 5.873 |
| Bore Depth | 0.591 |
| Hub Width | 5.873 |
| Bore Outside Diameter | 2.0467 |
Frequently Asked Questions
Q: What does DS in the SU S629-XL-A-DS part number designate?
A: DS designates Double Shoulder bearing design. The shoulder bearing configuration supports both axial and radial loads, preventing lateral wheel movement and drift. Use DS assemblies on wide-tread jacks or those requiring side-to-side load stability. Verify your jack is compatible with shoulder bearing geometry before installation.
Q: What is the bore diameter and tread width for the SU S629-XL-A-DS?
A: Bore diameter is 2.44 inches, outside diameter is 3.250 inches, and tread width is 2.88 inches. The outside diameter matches standard 3.25 inch wheels, but the bore is larger (2.44 inches vs. standard 2.0467 inches). This assembly is not compatible with standard axles. Measure your axle diameter before ordering.
Q: Can I use the SU S629-XL-A-DS on a standard pallet jack designed for 2.0467 inch bore wheels?
A: No. The SU S629-XL-A-DS has a 2.44 inch bore and will not fit on standard axles designed for 2.0467 inch bore. Forcing it causes bearing damage and jack instability. The DS assembly is engineered for specific heavy-duty jacks with reinforced wide axles. Always verify bore diameter on your jack nameplate.
Q: What is the 306 polyurethane compound specified for the SU S629-XL-A-DS?
A: The 306 compound is a specialized polyurethane formulation rated Shore 97A hardness, engineered for heavy-duty load handling and extreme service environments. It provides enhanced abrasion resistance compared to standard 97A Cushothane XL while maintaining the same durometer rating. The 306 compound extends wheel life in high-friction applications.
Q: What is the maximum load capacity for the SU S629-XL-A-DS assembly?
A: The SU S629-XL-A-DS is rated for 2400-2500 pounds per wheel, depending on jack model and application. The shoulder bearing design supports higher dynamic loads than standard assemblies. Always reference the jack nameplate for maximum rated capacity. Exceeding the rating causes accelerated polyurethane degradation and bearing failure.