Product Description
The GW 9143-A-DS caster wheel assembly is specifically engineered for electric lift truck applications, ensuring durability and performance. Constructed with high-quality Durarun 95A polyurethane tread and featuring a precision-sealed double bearing configuration, this assembly is designed to deliver extended wear life and smooth rotation during material handling operations.
Specifications: 4.000 inch diameter x 2.500 inch width (4.000" x 2.500" | 4 x 2.5 wheel | 4 x 2-1/2 | 101.60mm x 63.50mm) | Bearing ID: 25mm (0.984 inch bore | 25.000mm ID)
• Durable Durarun 95A polyurethane tread for enhanced wear resistance
• Precision-sealed double bearing configuration for smooth rotation
• Designed for easy replacement or interchange with GW9143-A-DS and GP9143-A-DS assemblies
This caster wheel assembly is ideal for electric lift trucks, making it a reliable choice for your material handling needs.
Specifications
Material & Construction
| Wheel Core Material | Polyurethane tread with reinforced core |
Part Numbers & Compatibility
| Manufacturer Part Number | GW 9143-A-DS |
| Cross-Reference Part Numbers | Equivalent to GP 9143-A-DS, GP9143-A-DS |
| Alternate/Superseded Part Numbers | Supersedes GW9143-A-DS, GP-9143-A-DS |
| No additional cross-reference part numbers available | No further supersession or interchange numbers explicitly listed beyond GP 9143-A-DS, GW9143-A-DS |
Wheel Dimensions
| Material | |
| Outside Diameter | 4 |
| Width Side to Side | 2.5 |
Frequently Asked Questions
Q: What does the DS designation mean on this wheel assembly?
A: DS stands for double sealed bearing configuration. This assembly includes two sealed bearings instead of one, providing extended load distribution and longer bearing life. Double sealed design reduces grease leakage by 50 percent compared to single-bearing wheels. DS versions are preferred for continuous-duty applications and trucks operating 16 hours per day or running on rough indoor floors.
Q: Can I replace a GW 9143-A single-bearing wheel with a GW 9143-A-DS double-bearing wheel?
A: Yes, GW 9143-A-DS is a direct upgrade to GW 9143-A. Both use 25mm bearing bore, 4.000 inch diameter, and 2.500 inch width. The DS version provides identical fitment but superior bearing life and reduced maintenance. Install as a plug-and-play replacement with no modifications needed. Upgrading all four wheels to DS versions is recommended for consistency.
Q: How does Durarun 95A polyurethane differ from standard polyurethane?
A: Durarun is a premium polyurethane compound engineered to resist flat-spotting and maintain shape under sustained load. It offers 15-20 percent longer tread life than standard 95A polyurethane when used on smooth concrete. Durarun resists oils and chemicals better than standard compounds. If your trucks operate near loading docks where hydraulic fluid or diesel spills occur, Durarun extends usable wheel life by 12-18 months.
Q: What is the maintenance schedule for double-sealed bearings?
A: Double-sealed bearings require inspection every 500 operating hours or 6 months, whichever comes first. Check for silicone seal degradation by visually inspecting the bearing area; if grease is visible outside the seal lip, replace the wheel assembly. Do not attempt to re-grease or repack sealed bearings. They are maintenance-free until failure, at which point complete assembly replacement is required.
Q: What load rating difference exists between single and double sealed versions?
A: The load capacity of GW 9143-A-DS and GW 9143-A is identical because load is carried by the wheel and axle, not the bearing seal type. However, double seals extend bearing life by 40 percent under rated load, reducing unplanned downtime. On a 5000-pound truck, all four wheels see 1250 pounds each; double seals simply make bearings last longer before replacement becomes necessary.
Q: Is GW 9143-A-DS equivalent to GP 9143-A-DS from other manufacturers?
A: Yes. GW 9143-A-DS is equivalent to GP 9143-A-DS and GP9143-A-DS. All three share identical 4 x 2.5 inch dimensions, 25mm bore, Durarun 95A tread, and double sealed bearing configuration. Cross-brand mixing is acceptable if bearings match. Always verify the supplier part number before ordering; verify bore size on the old wheel to confirm 25mm compatibility.