Product Description
Polyurethane press-on drive tire, 8.5 inch diameter by 4 inch width, smooth flat tread, bonded to steel band, compatible with select electric lift trucks requiring SU 8.5 X 4 X 4-SF-P type drive tires. Optimized for durability, non-marking performance, and indoor material handling environments.
Specifications: 8.500 inch diameter x 4.000 inch width (8.500" x 4.000" | 8.5 x 4 wheel | 8.5 x 4-0 | 215.90mm x 101.60mm)
Specifications
Material & Construction
| Core Material | Bonded steel press-on band |
Part Numbers
| Manufacturer Part Number | SU 8.5 X 4 X 4-SF-P |
| Cross-Reference Part Numbers | Equivalent to SU8.5X4X4-SF-P; referenced as Superior SU8.5X4X4-SF-P; no alternate OEM, superseded, or superseding numbers published |
| Product Compatibility | For select electric lift truck models utilizing 8.5x4x4 press-on polyurethane drive tires |
Wheel Specifications
| Outside Diameter (in) | 8.500 |
| Width (in) | 4.000 |
| Outside Diameter (mm) | 215.90 |
| Width (mm) | 101.60 |
| Drive Tire Profile | Smooth Flat |
| Material | Polyurethane |
Frequently Asked Questions
Q: What is the difference between the SU 8.5 X 4 X 4-SF-P polyurethane tire and the rubber version?
A: The SU 8.5 X 4 X 4-SF-P is a press-on polyurethane tire bonded to a steel band. It mounts to cast iron drive wheel hubs via the steel band. Polyurethane offers superior non-marking performance indoors, longer lifespan on concrete, and better resistance to oils. Rubber tires are solid molded units without a steel band. Verify your hub type: press-on wheels have a flat mounting surface; solid rubber wheels have a conical fit.
Q: What electric lift truck models use the SU 8.5 X 4 X 4-SF-P?
A: This tire is designed for electric lift trucks using 8.5 inch by 4 inch press-on drive wheel hubs. Common equipment includes Yale, Hyster, Toyota, and Crown models from the 1990s onward with press-on wheel configurations. Check your truck documentation or the hub itself for the exact specification. Do not assume compatibility based on tire size alone; the mounting system must match.
Q: How do I verify this tire will fit my press-on wheel hub?
A: Measure the hub bore diameter and the flat face width. For the SU 8.5 X 4 X 4-SF-P, verify the hub bore is sized for the tire steel band and the face width is 4 inches minimum. Remove the old tire and inspect the hub for cracks or wear. If the bore is enlarged or the steel band seating area is damaged, the new tire will not stay in place. Contact the wheel manufacturer for hub replacement if needed.
Q: What is the installation process for this press-on tire?
A: Remove the wheel assembly from the truck. Use a tire press to push the old tire straight off the hub. Clean the hub bore and seating surface with a wire brush. Inspect for nicks or corrosion. Position the new tire centered on the hub. Use the tire press to push the tire onto the hub in one smooth motion until the steel band is fully seated. The tire must sit flush with no gaps. Do not reinstall the wheel until the tire is fully seated.
Q: What are the operating specifications and limitations?
A: Tire dimensions: 8.5 inch outside diameter x 4 inch width. Smooth flat tread profile. Material: Polyurethane with steel band reinforcement. Load capacity depends on the truck frame and all wheel configuration; typically 4000 to 5500 lbs. Indoor use only. Do not exceed 4 mph on hard floors. Maximum temperature 140 degrees F. Not rated for outdoor or rough terrain use.
Q: How do I know when this press-on tire needs replacement?
A: Replace the tire if tread depth is worn below 3/16 inch, if chunks or cracks appear, or if you see the steel band exposed. If the truck slips on smooth floors or the tire does not grip properly, inspect for glazing or contamination. If the tire wobbles on the hub or rocks side to side, the steel band may have separated from the polyurethane. Do not attempt to repair. Press on a replacement tire.