Product Description
The SU S9133-EZ-A Load Wheel Assembly is engineered for electric lift truck replacement applications, providing a reliable solution for maintaining optimal performance. This OEM-grade assembly is compatible with select Superior and Atlas pallet jack models, ensuring a perfect fit for your equipment.
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) | Bearing ID: 25mm (0.984 inch bore | 25.000mm ID)
• High-quality OEM-grade construction for durability
• Designed specifically for electric lift trucks
• Easy installation for quick replacements
This load wheel assembly is ideal for maintaining the efficiency and reliability of your pallet jack, ensuring smooth operation in various lifting tasks.
Specifications
Part Numbers
| OEM Part Number | SU S9133-EZ-A |
| Manufacturer Part Number | SU S9133-EZ-A |
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 components are included in the SU S9133-EZ-A assembly?
A: The SU S9133-EZ-A is a complete pre-assembled load wheel unit that includes the 3.25 x 3.25 inch Cushothane XL polyurethane tread, electroplated carbon steel hub, sealed bearings, and quick-change (EZ) hub geometry. The assembly comes ready to install on the axle. The 25mm (0.984 inch) bearing ID is integrated and sealed. All fastening hardware and spacers required for installation are detailed in the technical specification sheet.
Q: Is the SU S9133-EZ-A compatible with Atlas pallet jacks?
A: Yes, the SU S9133-EZ-A is documented as compatible with select Superior and Atlas pallet jack models. However, compatibility is model-specific. Verify that your Atlas unit has a 1.938 inch bore diameter and uses a 25mm bearing ID. The quick-change EZ design may not be compatible with all Atlas models—contact Atlas technical support with your serial number to confirm fitment before ordering.
Q: How is the SU S9133-EZ-A different from SU S9133-A?
A: Both are complete assemblies with pre-installed sealed bearings and 3.25 x 3.25 inch dimensions. The SU S9133-EZ-A includes the quick-change (EZ) hub design for faster installation and removal, while the standard SU S9133-A uses traditional hub fastening. Choose SU S9133-EZ-A if your equipment was originally equipped with EZ quick-change wheels. Choose SU S9133-A if your equipment uses standard hub design.
Q: Can the sealed bearings in the SU S9133-EZ-A be re-greased?
A: No. The sealed bearings in the SU S9133-EZ-A are not user-serviceable and cannot be re-greased. Once the seal is breached, water and contaminants will damage the bearing races. Attempting to grease sealed bearings may force grease past the seal and cause binding or resistance. When bearings fail, replace the entire SU S9133-EZ-A assembly. Sealed bearing life is typically 3-5 years under normal warehouse conditions.
Q: What is the 25mm bearing ID specification, and how does it affect compatibility?
A: The 25mm (0.984 inch) bearing ID is the inner diameter of the sealed bearing races. This dimension must match your truck axle diameter exactly. An axle smaller than 25mm will allow binding and wheel failure. An axle larger than 25mm will cause wheel wobbling. The SU S9133-EZ-A is engineered for trucks using 25mm axles. Always measure your existing axle before ordering to ensure compatibility.
Q: Does the SU S9133-EZ-A require any modification for installation?
A: The SU S9133-EZ-A is engineered as a direct OEM-grade replacement for compatible Superior and Atlas models. On correctly specified equipment, installation requires no modification—slide the assembly onto the axle and secure the fastener. However, spacer washers or fastener adjustments may be required depending on axle length and truck design. Always verify your equipment specifications and follow the installation procedure in your truck manual before assembly installation.