Product Description
The SU S820-XL load wheel is designed for use with electric lift trucks and pallet stackers, providing reliable performance and durability. This wheel features a robust polyurethane tread that enhances traction and reduces wear.
Specifications: 3.250 inch diameter x 4.500 inch width (3.250" x 4.500" | 3.25 x 4.5 wheel | 3-1/4 x 4-1/2 | 82.55mm x 114.30mm)
• Polyurethane tread for excellent grip and longevity
• Machined steel hub for added strength and stability
• Designed to support a load capacity of 1800 lbs at a 24 inch load center
• Polyurethane hardness rated at Shore A 93A ±2
This load wheel is a direct replacement for Superior Tire S820XL, SUS820-XL, and other cross-reference numbers, ensuring compatibility and ease of installation.
Specifications
Material & Construction
| Tread Material | High-performance polyurethane |
| Core/Hub Material | Machined steel hub |
| Bond Construction | Mechanically interlocked polyurethane to steel |
Part Numbers & Compatibility
| Manufacturer Part Number | SU S820-XL |
| OEM Part Number | SU S820-XL |
| Cross-Reference Part Numbers | SU820-XL, S820XL, SU 820-XL, SUS820-XL |
| Supersedes / Equivalent | Equivalent to Superior Tire S820XL, SUS820-XL |
Frequently Asked Questions
Q: What are the exact wheel dimensions for the SU S820-XL?
A: The SU S820-XL has a diameter of 3.250 inches (82.55 mm) and a width of 4.500 inches (114.30 mm). Alternative dimension notations: 3.25 x 4.5 wheel, 3-1/4 x 4-1/2 inch, or 82.55 x 114.30 mm. Always verify these dimensions match your truck axle and frame clearances before ordering.
Q: What is the XL3 proprietary bonding agent used in the SU S820-XL?
A: The XL3 bonding technology mechanically interlocks the polyurethane tread to the machined steel core. This proprietary process increases tread durability and reduces tread separation under high load cycling. The exact chemical composition is proprietary to Superior parts, but the result is extended wheel lifespan compared to standard bonding methods.
Q: Can the SU S820-XL wheels be used on both steering and load-bearing axles?
A: The SU S820-XL is designed as a load wheel for main load-bearing positions on electric lift trucks and pallet stackers. Do not use on steering axles or caster applications unless your truck documentation specifically allows it. Misapplication will cause uneven wear and poor handling.
Q: What load capacity is rated for the SU S820-XL?
A: The SU S820-XL is designed for high-capacity warehouse and lift truck applications. Actual load per wheel depends on your specific truck model and the number of load wheels. Refer to your truck manual for the rated load capacity. Do not exceed this rating; overloading causes accelerated wear, bearing damage, and safety hazards.
Q: How do I know when the SU S820-XL needs replacement?
A: Replace the SU S820-XL when tread is worn to 50 percent of original thickness, when flat spotting is visible, when bearing noise develops, or when polyurethane separates from the steel core. Inspect every 500 operating hours or six months. Worn wheels reduce braking efficiency and increase tire-out risk.
Q: Does the SU S820-XL have sealed ball bearings?
A: Yes. The SU S820-XL includes dual sealed deep groove ball bearings to prevent water and debris from entering the bearing cavity. Sealed bearings are maintenance-free and require no greasing. Bearing seals should not be removed or damaged during installation.