Product Description
LOAD WHEEL ASSEMBLY 87A
Specifications: 3.250 inch diameter x 5.937 inch width (3.250" x 5.937" | 3.25 x 5.94 wheel | 3-1/4 x 5.937 | 82.55mm x 150.80mm)
Specifications
Wheel Dimensions
| Material | Cushothane XL |
| Outside Diameter | 3.25 |
| Inside Diameter | 1.938 |
| Width Side to Side | 5.873 |
| Bore Depth | 0.591 |
| Hub Width | 5.873 |
| Bore Outside Diameter | 2.0467 |
Frequently Asked Questions
Q: What is the difference between the SU S629-EZ wheel and the SU S629-EZ-A assembly?
A: The SU S629-EZ-A is a complete wheel assembly that includes the wheel, bearing, and hub pre-assembled. The SU S629-EZ is the wheel only. The assembly is plug-and-play for replacement if you do not need to reuse existing bearings. Always verify bearing bore size (1.938 inch ID) matches your jack axle.
Q: Is the SU S629-EZ-A a drop-in replacement for OEM wheel assemblies?
A: The SU S629-EZ-A is a drop-in replacement if your axle bore is 2.0467 inches and axle length accommodates the 5.873 inch hub width. Do not force the assembly onto a smaller bore. Verify axle specifications against the technical drawing before ordering. Forced installation damages both the bearing and axle.
Q: Can I upgrade the SU S629-EZ-A assembly to a 97A hardness wheel for better durability?
A: No. The SU S629-EZ-A assembly is cast with 87A Cushothane XL polyurethane and cannot be upgraded. You must purchase the SU S629-XL-A assembly if you need 97A hardness. Mixed hardness wheels on the same jack cause handling issues and warranty voidance.
Q: What maintenance is required for the SU S629-EZ-A assembly?
A: Inspect the assembly monthly for flat spots and tread cracks. Clean debris from the hub and bearing area to prevent grit contamination. Do not lubricate the polyurethane tread. Sealed bearings do not require re-greasing. If the wheel rotates rough or makes noise, the bearing is failed and the entire assembly must be replaced.
Q: What load rating does the SU S629-EZ-A assembly support?
A: The SU S629-EZ-A assembly is rated for up to 2000-2200 pounds per wheel depending on the jack model. This assumes evenly distributed load across all four wheels and normal warehouse floor conditions. Overloading accelerates polyurethane degradation and bearing failure. Always follow the jack nameplate load rating.