Product Description
SU 9812 Load Wheel for electric lift trucks and pallet jacks features low-friction polyurethane tread, 3-inch diameter, 3.66-inch hub length, 20 mm sealed precision bearings, and rated for class 2 electric lift truck applications. Compatible with standard electric pallet jack mounting configurations.
Specifications: 3.250 inch diameter x 6.010 inch width (3.250" x 6.010" | 3.25 x 6.01 wheel | 3-1/4 x 6.01 | 82.55mm x 152.65mm)
Specifications
Material
| Tread Material | Low-friction polyurethane compound |
| Hub Material | Steel core with polyurethane tread |
Part Numbers
| Manufacturer Part Number | SU 9812 |
Wheel Dimensions
| Material | Cushothane XL |
| Outside Diameter | 3.25 |
| Inside Diameter | 1.938 |
| Width Side to Side | 6.01 |
| Bore Depth | 0.584 |
| Hub Width | 6.01 |
| Bore Outside Diameter | 2.0467 |
Frequently Asked Questions
Q: What is the equivalent part number for the SU 9812 across Yale, Hyster, and Crown brands?
A: The SU 9812 is a 3.25 inch diameter load wheel with 6.01 inch tread width and Cushothane XL tread material. Cross-brand equivalents include Yale YL-582031624 and Hyster HY 4075270, both rated for 24V and 36V electric pallet jacks. Always verify your truck voltage and serial range before substituting. Using the wrong voltage-rated wheel can cause motor and bearing stress.
Q: What bearing size and type is used in the SU 9812 and is it field-serviceable?
A: The SU 9812 features 20 mm sealed precision ball bearings. Bearings are sealed and pre-lubricated; field repacking or replacement is not recommended. If bearing play develops or grinding noise occurs, replace the entire wheel assembly. Bearing replacement requires specialized pressing equipment and will void the warranty on assembly integrity.
Q: What load capacity does the SU 9812 wheel support?
A: The SU 9812 is rated for class 2 electric lift truck applications. Class 2 capacity is typically 3000 to 5000 pounds per truck depending on wheel count and load distribution. Do not use the SU 9812 on class 3 or higher lift trucks. Verify your truck classification in the OEM manual before installation.
Q: Is the SU 9812 compatible with 48V electric pallet jacks or only 24V and 36V?
A: The SU 9812 is designed for 24V and 36V electric pallet jack applications. The 48V equivalent part is the SU 9812-A. Do not install the SU 9812 on a 48V truck. Using a 24V or 36V wheel on a 48V truck causes inadequate bearing cooling and premature failure. Verify your truck voltage label before ordering.
Q: What is the bore diameter and hub length to confirm the SU 9812 fits your axle?
A: The SU 9812 has an inside diameter of 1.938 inch, bore depth of 0.584 inch, and hub width of 6.01 inch. The bore outside diameter is 2.046 inch. Measure your existing wheel bore and axle diameter before installation. If the axle is 1.25 inch or 1.5 inch diameter, you need a different wheel assembly with a matching bore size.
Q: What tread material is used on the SU 9812 and does it perform differently on wet concrete?
A: The SU 9812 uses Cushothane XL low-friction polyurethane compound tread. Cushothane XL provides good wear life and load control on dry floors. On wet concrete, grip is reduced compared to harder durometer compounds. For wet-floor applications, consider a higher-durometer tread wheel or apply friction tape to improve traction.