Product Description
Load Wheel Assembly
Specifications: 3.250 inch diameter x 3.000 inch width (3.250" x 3.000" | 3.25 x 3 wheel | 3-1/4 x 3 | 82.55mm x 76.20mm)
Specifications
Wheel Dimensions
| Material | Cushothane XL |
| Outside Diameter | 3.25 |
| Inside Diameter | 1.938 |
| Width Side to Side | 3 |
| Bore Depth | 0.812 |
| Hub Width | 3 |
| Bore Outside Diameter | 2.0467 |
| Tread Profile |
Frequently Asked Questions
Q: What does the SU S535-A assembly include?
A: The SU S535-A is a complete wheel assembly featuring the SU S535 Cushothane XL wheel (3.25 x 3 inch), pre-installed sealed bearings, and ready-to-mount axle hardware. No bearing installation is required; the assembly mounts directly to your truck axle.
Q: How do I know if I need SU S535-A instead of SU S535?
A: Order SU S535-A if you do not have bearing removal and installation tools or if you want the fastest replacement time. Order SU S535 if you have existing bearings in good condition and want to reuse them. Both wheel sizes (3 inch) are the same; the difference is assembly state.
Q: Can I swap SU S535-A with SU S534-A?
A: No. SU S535-A is 3 inches wide; SU S534-A is 6.25 inches wide. If you install the wrong width assembly, the wheel will bind against the frame or hub, causing steering problems and accelerated bearing failure. Verify your hub width before ordering.
Q: What is the installation procedure for the SU S535-A?
A: Remove the axle nut or clip from your old assembly, slide the old assembly off the axle, align the SU S535-A bore with the axle, and slide it on. Reinstall and tighten the axle nut to the manufacturer specification (typically 40 to 60 foot-pounds). Spin the wheel to confirm free rotation before returning the truck to service.
Q: Do the bearings in the SU S535-A need lubrication?
A: The SU S535-A bearings are sealed and pre-lubricated. They do not require regular greasing unless your truck model has separate axle grease fittings. Consult your equipment manual. Over-greasing sealed bearings can cause seal failure and bearing damage.
Q: What maintenance schedule applies to the SU S535-A?
A: Inspect the wheel for damage every 250 operating hours. Check the axle nut for tightness at every inspection. Listen for grinding or squealing from the bearings; if present, remove the assembly and check for bearing noise or axle misalignment. Replace if the wheel is cracked, flat-spotted, or steering feels rough.