Product Description
Poly on cast wheel assy
Specifications: 8.000 inch diameter x 2.500 inch width (8.000" x 2.500" | 8 x 2.5 wheel | 8 x 2-1/2 | 203.20mm x 63.50mm)
Specifications
Wheel Dimensions
| Material | Cushothane |
| Outside Diameter | 8 |
| Inside Diameter | 1.938 |
| Width Side to Side | 2.5 |
| Bore Depth | 0.785 |
| Hub Width | 2.5 |
| Bore Outside Diameter | 2.0467 |
Frequently Asked Questions
Q: How does the SU S487-A compare to the standard SU S487?
A: The SU S487-A is equivalent to SU S487. Both are poly on cast wheel assemblies with identical OD of 8.000 inches and width of 2.500 inches. Cushothane tread, 1.938 inch bore ID, and 2.0467 inch bore OD are the same. The A suffix indicates this is an authorized service equivalent. Direct swap for replacement.
Q: What is the inside bore diameter of the SU S487-A wheel hub?
A: The bore inside diameter (ID) is 1.938 inches. The bore outside diameter (OD) is 2.0467 inches. Bore depth is 0.785 inches. These dimensions ensure the wheel fits standard electric lift truck axles. Measure your truck axle diameter before ordering to confirm compatibility.
Q: Is the SU S487-A suitable for outdoor or rough surface use?
A: The SU S487-A is designed for standard indoor warehouse floors (smooth concrete). Outdoor use on gravel, uneven pavement, or rough surfaces accelerates polyurethane tread wear and can damage the cast iron core. For rough terrain, consult your lift truck manufacturer about specialized wheel recommendations. Standard wheels are not rated for outdoor service.
Q: How do I ensure the SU S487-A wheel is properly centered during installation?
A: Before installing, clean the axle of debris and old grease. Align the wheel bore with the axle. If bolted, tighten bolts in a crosshatch pattern (opposite sides alternately) to ensure even pressure. If press-fit, use a bearing press or gently tap the wheel onto the axle using a rubber mallet, checking for even seating. Spin the wheel to verify free rotation and no wobble.
Q: What causes rapid wear of the SU S487-A polyurethane tread?
A: Rapid wear can result from misalignment of the wheel on the axle, overloading beyond the truck capacity, excessive turning on hard floors, operating on oily or greasy floors that soften polyurethane, or worn bearings that allow wobbling. Check truck alignment and bearing condition if one wheel wears faster than others. Replace worn wheels in matched sets when possible.