Product Description
Poly Load Wheel Assembly, 95-A
Specifications: 3.250 inch diameter x 6.000 inch width (3.250" x 6.000" | 3.25 x 6 wheel | 3-1/4 x 6 | 82.55mm x 152.40mm)
Specifications
Wheel Dimensions
| Material | Cushothane XL |
| Outside Diameter | 3.25 |
| Inside Diameter | 1.938 |
| Width Side to Side | 6 |
| Bore Depth | 0.812 |
| Hub Width | 6 |
| Bore Outside Diameter | 2.0467 |
| Tread Profile |
Frequently Asked Questions
Q: What components are included in the SU S529-A assembly?
A: SU S529-A includes the polyurethane wheel (3.25 inch diameter x 6 inch width), pre-installed bearings, and the hub assembly. This is a complete bolt-on replacement. You receive one ready-to-mount unit with all bearing and hub components already pressed and fitted.
Q: Is SU S529-A a direct replacement for wheels on older lift trucks?
A: SU S529-A fits standard 9-inch fork carriages manufactured within the last 20 years. However, verify bolt hole spacing and axle bore diameter (should be 2.047 inches) before ordering. Measure the old wheel hub bolt holes and compare to the new assembly. Some older models may use different hub designs; if unsure, contact the truck manufacturer with the truck serial number.
Q: How often should I grease or maintain the bearings in SU S529-A?
A: SU S529-A bearings are sealed and require no routine greasing. Check bearing play quarterly by grabbing the wheel at the tire and attempting to move it side-to-side. Excessive movement indicates bearing failure. Do not attempt to repack or add grease to sealed bearings, as this can damage the seals and cause premature failure. Replace the entire assembly if bearings fail.
Q: Can I use SU S529-A on a truck previously fitted with SU S529-XL-A wheels?
A: The bolt pattern and bore are identical, so SU S529-A will mount. However, SU S529-A is 95-A hardness and SU S529-XL-A is 97-A hardness. Do not mix the two on the same truck because different hardness ratings cause uneven braking response and unequal tire wear. Replace all four load wheels with the same hardness grade.
Q: What is the weight of the SU S529-A assembly?
A: SU S529-A complete assembly weighs approximately 3.5 to 4 pounds. This includes the wheel, hub, and sealed bearing cartridges. The weight is negligible compared to total truck weight and does not affect load rating calculations.
Q: How do I know if the SU S529-A bearings are failing?
A: Failing bearings produce a grinding or clicking sound during operation and may cause the wheel to drag or lock. The wheel may feel warm or hot to the touch immediately after use. Excessive radial play (wobbling side-to-side when the truck is lifted) is another indicator. If any of these symptoms occur, stop using the truck and replace the assembly immediately to avoid damage to the carriage.