Product Description
SU S9109-XL-A Load Wheel Assembly by Liftsplus.com is a polyurethane tread, finned aluminum hub wheel designed for electric lift trucks requiring superior heat dissipation and longevity. Assembly features pre-pressed bearing configuration (greaseable or non-greaseable), 5.00 inch OD by 2.50 inch tread width. Unit is 70% lighter than steel equivalents and supports high-capacity loads typical of reach truck applications.
Specifications
Mechanical Specifications
| Tire Material | Polyurethane elastomer, bonded to aluminum hub |
| Bearing Protection | Available in -Z (greaseable, 1-shield outside) and -2RS (non-greaseable, 2-seals both sides) configurations |
Part Numbers & Compatibility
| Manufacturer Part Number | SU S9109-XL-A |
Frequently Asked Questions
Q: What makes SU S9109 different from standard steel load wheels?
A: SU S9109 features a polyurethane tread bonded to a finned aluminum hub instead of solid steel. The finned aluminum hub dissipates heat more effectively, extending bearing life and wheel durability. The assembly is approximately 70 percent lighter than equivalent steel wheels, which reduces truck curb weight and improves energy efficiency on electric models. The 5.00 inch OD and 2.50 inch tread width are designed for reach truck applications.
Q: Is SU S9109 compatible with my electric reach truck?
A: SU S9109 is engineered specifically for electric lift truck applications. Confirm that your truck model accepts a 5.00 inch OD by 2.50 inch tread width wheel and that the axle hub bore matches the wheel hub diameter. The lighter weight of the aluminum hub is especially beneficial for electric trucks because it reduces energy draw. Verify the correct bearing configuration (greaseable or sealed) before ordering.
Q: What bearing options are available for SU S9109?
A: SU S9109 is available with -Z configuration (greaseable, single shield on the outside) or -2RS configuration (sealed, double seals on both sides). Use -Z if your maintenance schedule includes regular bearing lubrication. Use -2RS if you prefer sealed, no-maintenance operation. Do not mix bearing types on the same truck.
Q: How do I diagnose if SU S9109 bearings are failing?
A: Lift the truck and spin each wheel by hand. Listen for grinding, squealing, or clicking sounds inside the hub. Feel for excessive side-to-side play (more than 0.010 inch). On electric trucks, excessive bearing friction will cause the motor to draw higher current, which you may notice as reduced run time on a fully charged battery. If any of these symptoms are present, remove the wheel and inspect bearings; replace if races are pitted or balls are discolored.
Q: What is the maximum load capacity for SU S9109 on a four-wheel reach truck?
A: Load capacity per wheel depends on the reach truck model and the total distributed load. Reach trucks typically have varying load ratings based on lift height and load center. Divide your truck is rated load capacity by the number of load wheels to find the per-wheel limit. Do not exceed the manufacturer rating; overloading causes accelerated bearing wear and can cause wheel failure under load.