Product Description
SU 9159-A Load Wheel Assembly for Superior Electric Pallet Jack; manufactured by Liftsplus.com and cross-referenced to GW 9159. Features a 3.00 inch diameter, 3.75 inch width polyurethane wheel (Durarun 95A spec), steel core, sealed ball bearings, Grade 8 axle bolt, and designed for pallet truck load applications up to 2500 lbs at 24 inch load center. Compatible with Superior electric pallet jack models requiring a 0.625 inch axle shaft and 2-hole mounting.
Specifications
Dimensional
| Mounting Hole Pattern | 2-hole configuration, 2.25 inch center-to-center spacing |
| Spacer Thickness | 0.25 inch |
Material & Construction
| Polyurethane Grade | 95A (high-wear industrial spec) |
| Core Material | Machined steel core, plain finish |
| Assembly Fastener Specification | Grade 8 steel axle bolt, UNC thread |
Part Numbers
| Manufacturer Part Number | SU 9159-A |
| OEM Part Number | SU 9159-A |
| Cross-Reference Part Numbers | Equivalent to GW 9159 (Generic Parts), compatible with Superior Electric Pallet Jack; No supersedes or replacement part numbers available |
Frequently Asked Questions
Q: What is the cross-reference equivalent for the SU 9159-A load wheel assembly?
A: The SU 9159-A is equivalent to GW 9159. Both assemblies feature identical 3.00 inch diameter, 3.75 inch width polyurethane wheels with sealed ball bearings and Grade 8 axle bolts. Verify your equipment requires a 0.625 inch axle shaft and 2-hole mounting pattern before substituting part numbers.
Q: What does the 95A polyurethane specification mean for the SU 9159-A?
A: 95A refers to the Shore hardness durometer rating of the Durarun polyurethane tread compound. This is a high-wear industrial specification designed for demanding warehouse and material handling applications. Higher durometer means greater abrasion resistance but slightly less cushioning than softer compounds.
Q: What is the maximum load capacity for the SU 9159-A?
A: The SU 9159-A is rated for pallet truck load applications up to 2500 lbs at a 24 inch load center. This assumes proper equipment maintenance, suitable floor conditions, and correct tire inflation where applicable. Exceeding rated load capacity will accelerate tread wear and may damage sealed bearings.
Q: How do I verify the axle shaft compatibility for the SU 9159-A?
A: The SU 9159-A requires a 0.625 inch axle shaft with 2-hole mounting. Before installation, measure your existing axle shaft diameter and verify the hole spacing. The bore of the assembly is precision-machined; an incorrect shaft diameter will cause binding or loose wheel wobble.
Q: What tools and steps are needed to install the SU 9159-A?
A: Remove the existing axle bolt (Grade 8 specification provided with assembly). Slide the old wheel off the axle shaft. Install the new SU 9159-A onto the shaft, ensuring the bore seats fully. Install the Grade 8 axle bolt and torque to 45-55 ft-lbs or per your equipment OEM spec. Verify the wheel rotates freely with no grinding or play.
Q: How do sealed ball bearings behave over time, and when should I replace the SU 9159-A?
A: Sealed ball bearings are maintenance-free but will eventually wear out under load and use. Symptoms of bearing failure include grinding noise during rotation, wheel wobble, or resistance to spinning. In typical warehouse use, expect 18 to 36 months of service life. Replace the entire assembly; bearings cannot be serviced separately in this sealed design.
