Product Description
The GW 820 Poly Load Wheel is designed specifically for electric lift truck applications, providing reliable performance and durability. This wheel is ideal for use in electric pallet jacks, stackers, and walkie trucks, ensuring an exact OEM fit.
Specifications: 3.250 inch diameter x 4.500 inch width (3.250" x 4.500" | 3.25 x 4.5 wheel | 3-1/4 x 4-1/2 | 82.55mm x 114.30mm)
• Constructed with a high-strength cast iron core for enhanced durability
• Features a 95A polyurethane tread for smooth operation
• Supports a maximum capacity of 2450 lbs at a 2.5 inch load center
This load wheel is compatible with equipment requiring a 20 mm axle, ensuring seamless integration into your electric lift truck systems.
Specifications
Material & Construction
| Tread Material | 95 Shore A polyurethane compound |
| Core Material | High-strength cast iron |
| Hardness | 95A durometer (polyurethane tread) |
Part Numbers
| Manufacturer Part Number | GW 820 |
| OEM Part Number | GW 820 |
Wheel Dimensions
| Material | |
| Outside Diameter | 3.25 |
| Width Side to Side | 4.5 |
Frequently Asked Questions
Q: What bearing size does the GW 820 load wheel use?
A: The GW 820 features a 17mm bearing ID (0.669 inch bore). This makes it compatible with electric pallet jacks, stackers, and walkie trucks with 17mm diameter axle shafts. Do not confuse with larger 25mm bearing assemblies as installation on the wrong axle size will result in wobbling and unsafe operation.
Q: Is the GW 820 equivalent to other 95A polyurethane load wheels?
A: The GW 820 is a direct OEM replacement for any 3.250 inch diameter by 4.500 inch width wheel assembly with a 17mm bearing and 95A polyurethane tread. Cross-reference your original part number to verify specifications match. The cast iron core on the GW 820 offers slightly more rigidity than steel cores in some equivalent models.
Q: How is the GW 820 wheel core constructed and why use cast iron?
A: The GW 820 features a high-strength cast iron core rather than machined steel. Cast iron provides enhanced durability, consistent weight distribution, and superior rigidity for demanding pallet jack applications. The cast iron resists denting or permanent deformation under heavy concentrated loads better than softer steel cores.
Q: How do I install the GW 820 wheel assembly?
A: Lift your equipment frame on safe blocks. Remove the axle retaining clip or cotter pin. Slide the old wheel off the 17mm axle shaft. Clean corrosion from the axle shaft. Slide the GW 820 wheel onto the shaft until the bearing bore seats fully. Reinstall the axle clip or cotter pin. Spin the wheel by hand to confirm smooth rotation before operating.
Q: What is the tread hardness and traction performance of the GW 820?
A: The GW 820 uses a 95 Shore A polyurethane tread, which provides smooth operation and good traction on concrete and wood warehouse floors. The 95A hardness offers a balance between wear resistance and grip. On wet floors or oily surfaces, traction is reduced versus higher-durometer wheels; clean floors regularly to maintain safety.
Q: When should the GW 820 wheel be replaced?
A: Replace the GW 820 if you observe chunks missing from the tread, visible flat spots on the circumference, bearing noise or rough rotation, visible cracks in the cast iron core, or a single wheel that lags during operation. With normal use (20 to 40 hours per week), the GW 820 typically lasts 2000 to 2500 operating hours. Inspect wheels monthly on equipment running 30+ hours per week.
