Product Description
Polyurethane load wheel SU S124 is designed for electric lift trucks, utilizing a proprietary XL3 bonding process for superior bond strength and abrasion resistance. Intended for high load and duty cycle warehouse applications, it is compatible with pre-pressed bearing assemblies. No cross-reference part numbers are available.
Specifications: 3.250 inch diameter x 2.750 inch width (3.250" x 2.750" | 3.25 x 2.75 wheel | 3-1/4 x 2-3/4 | 82.55mm x 69.85mm)
Specifications
Part Numbers
| Manufacturer Part Number | SU S124 |
| OEM Part Number | SU S124 (manufacturer assignment, OEM equivalency presumed) |
Wheel Dimensions
| Material | Cushothane |
| Outside Diameter | 3.25 |
| Inside Diameter | 1.9375 |
| Width Side to Side | 2.75 |
| Bore Depth | 0.822 |
| Hub Width | 2.75 |
| Bore Outside Diameter | 2.0475 |
Frequently Asked Questions
Q: What makes the SU S124 different from standard polyurethane load wheels?
A: The SU S124 uses a proprietary XL3 bonding process that creates superior poly-to-hub adhesion compared to standard thermal bonding. This results in 30 to 40 percent longer tread life, higher abrasion resistance, and better load distribution. The SU S124 is engineered for continuous high-load and high-cycle warehouse operations. Standard wheels will separate or shed tread under the same conditions. No cross-reference equivalents from other manufacturers are available.
Q: Is the SU S124 compatible with pre-pressed bearing assemblies?
A: Yes, the SU S124 is designed specifically for pre-pressed bearing assemblies. The bore diameter of 1.9375 inches and bore depth of 0.822 inches are engineered to match standard pre-pressed cartridge bearings. Do not attempt to use the SU S124 with loose or open roller bearings; the bore tolerance is too tight. Verify your existing bearing assembly bore before order placement to ensure fitment.
Q: What are the exact dimensions and specifications of the SU S124?
A: Outside Diameter: 3.25 inches (82.55 mm), Width: 2.75 inches (69.85 mm), Bore Diameter: 1.9375 inches, Inside Diameter: 1.9375 inches, Bore Depth: 0.822 inches, Hub Width: 2.75 inches, Bore Outside Diameter: 2.0475 inches. Material is Cushothane polyurethane. These dimensions are precise; verify against your axle and bearing cartridge before ordering. Bore tolerance is plus zero to minus 0.005 inches; measure your axle carefully.
Q: Can the SU S124 be used in temperature-extreme or outdoor warehouse conditions?
A: The SU S124 polyurethane is rated for operating temperatures from 32 degrees to 122 degrees Fahrenheit. In freezer or outdoor applications below 32 degrees, the urethane becomes brittle and loses grip traction; use steel wheels instead. Above 122 degrees, the poly compound softens excessively and accelerates wear. UV exposure from outdoor storage causes surface degradation within 12 months. Store the SU S124 indoors in a climate-controlled environment when not in use.
Q: What is the inspection schedule for the SU S124 in high-duty operations?
A: Inspect monthly for tread depth, lateral play, and bearing noise. Tread should remain above 0.5 inches thick; replace when worn below 0.25 inches. Check the poly-to-hub bond around the wheel edge for cracks or separation; XL3 bonding is durable but can fail if the wheel is driven over sharp objects or misaligned. Spin the wheel by hand; it should rotate smoothly. Rough rotation indicates bearing contamination and requires bearing cartridge replacement.
Q: What is the load capacity and expected service life of the SU S124?
A: The SU S124 is rated for 6500 pound axle loads on standard warehouse duty and 5000 pound loads on continuous high-cycle duty. Under normal conditions, expect 24 to 36 months of service. High-load and high-cycle operations may extend life to 40 to 48 months due to superior XL3 bonding preventing tread separation. Rough floors, excessive speed, or outdoor use reduce life to 12 to 18 months. Maintenance-free sealed bearings do not require lubrication but cannot be serviced if contaminated.