Product Description
Load Wheel
Specifications: 3.250 inch diameter x 3.250 inch width (3.250" x 3.250" | 3.25 x 3.25 wheel | 3-1/4 x 3-1/4 | 82.55mm x 82.55mm)
Specifications
Wheel Dimensions
| Material | Cushothane XL |
| Outside Diameter | 3.25 |
| Inside Diameter | 1.938 |
| Width Side to Side | 3.25 |
| Bore Depth | 0.591 |
| Hub Width | 3.25 |
| Bore Outside Diameter | 2.0467 |
Frequently Asked Questions
Q: What is the SU 9133-EZ load wheel and what electric lift truck models does it fit?
A: The SU 9133-EZ is a Cushothane XL polyurethane load wheel with 3.25-inch diameter and 3.25-inch width, designed for electric pallet jacks and electric lift trucks. It features a 1.938-inch inside diameter bore with 0.591-inch bore depth. Verify your lift truck make and model against the fitment chart before ordering, as load wheel compatibility varies by manufacturer and serial range.
Q: What are the exact dimensions and bore specifications for the SU 9133-EZ?
A: Outside Diameter: 3.25 inches (82.55mm). Width: 3.25 inches (82.55mm). Inside Diameter: 1.938 inches. Bore Outside Diameter: 2.0467 inches. Bore Depth: 0.591 inches. Hub Width: 3.25 inches. These dimensions are metric-equivalent to 3-1/4 x 3-1/4 inch. Always cross-check your existing wheel specifications before replacement.
Q: Is the SU 9133-EZ equivalent to or interchangeable with other branded load wheels?
A: The SU 9133-EZ matches common 3.25 x 3.25-inch load wheel specifications found on many electric lift trucks. Cross-reference your OEM part number with the dimension chart to confirm equivalence. Do not assume interchangeability based on size alone, as bore tolerances and material hardness affect fitment and performance.
Q: What maintenance is required for the SU 9133-EZ load wheel?
A: Inspect the wheel periodically for flat spots, cracking, or polyurethane material separation from the steel core. Clean debris and inspect the bore for contamination. If the wheel does not roll freely or shows uneven wear, remove and inspect the bearing. Replace the wheel if the polyurethane shows visible chunking, permanent deformation, or loss of elasticity. Typical service life is 12 to 24 months depending on load cycles and floor conditions.
Q: How do I install or replace the SU 9133-EZ load wheel?
A: Lift the truck safely on a level work surface. Remove the wheel axle pin or fastener. Slide the old wheel off the axle and set aside. If the bearing does not turn freely, inspect or replace it before installing the new wheel. Slide the SU 9133-EZ wheel onto the axle hub, ensuring the bore aligns with the axle journal. Reinsert the axle pin or fastener and secure it per the lift truck manufacturer specifications. Verify wheel rotation is smooth before returning the truck to service.
Q: What material is the SU 9133-EZ wheel made from and why is Cushothane XL significant?
A: The SU 9133-EZ uses Cushothane XL, a durable polyurethane compound formulated for reduced static pulling force and resistance to warehouse floor oils and debris. Cushothane XL resists surface damage compared to softer polyurethane grades and provides stable load distribution under repeated cycles. This material choice extends wheel life in high-volume material handling environments.