Product Description
Load Wheel
Specifications: 3.250 inch diameter x 3.125 inch width (3.250" x 3.125" | 3.25 x 3.13 wheel | 3-1/4 x 3-1/8 | 82.55mm x 79.38mm)
Specifications
Wheel Dimensions
| Material | Cushothane XL |
| Outside Diameter | 3.25 |
| Inside Diameter | 1.938 |
| Width Side to Side | 3.125 |
| Tread Profile | 1/4 Radius |
| Bore Depth | 0.968 |
| Hub Width | 3.125 |
| Bore Outside Diameter | 2.0467 |
Frequently Asked Questions
Q: What is the SU 818 load wheel and where is it used?
A: The SU 818 is a 3.25 inch diameter by 3.125 inch width load wheel made of Cushothane XL polyurethane material. Cushothane is a synthetic elastomer that resists oils, chemicals, and cutting. Load wheels are the small wheels that follow the drive wheels on lift trucks, pallet jacks, and platform trucks to distribute weight and improve steering. The 1/4 radius tread profile provides grip on smooth floors.
Q: What are the bore specifications for the SU 818?
A: The SU 818 load wheel has an inside diameter of 1.938 inches with a bore outside diameter of 2.0467 inches and a bore depth of 0.968 inches. The hub width is 3.125 inches. These dimensions are critical for proper fit on your axle. Verify your current wheel bore diameter and hub width before ordering. Incorrect bore size will not fit and will not be returnable.
Q: How do I know if I need to replace my load wheel?
A: Replace the load wheel when you observe flat spots, cracking, chunks missing from the tread, reduced traction causing the truck to drift, or squeaking and grinding sounds during operation. Inspect load wheels monthly if in heavy use. Worn load wheels reduce steering control and can damage product. Typically expect 3 to 7 years of service life depending on floor conditions.
Q: Is the SU 818 equivalent to other manufacturer load wheels?
A: The SU 818 is equivalent to Toyota 52-7FG-10, Crown WT231, and Hyster/Yale standard 3.25 inch load wheels. Verify your lift truck model and serial number to confirm cross-compatibility. Bore diameter must match exactly. Many manufacturers make similar sized load wheels but with slightly different bore specifications, so always verify dimensions before substituting.
Q: What is the difference between SU 818 and SU 818-A?
A: SU 818 is the wheel only. SU 818-A is the complete load wheel assembly including the wheel mounted on a hub with bearings and axle hardware. If your equipment has an existing hub you can remove, order the bare SU 818 wheel. If you need a complete ready-to-install assembly, order the SU 818-A. The -A version costs more but saves labor and requires less technical skill to install.