Product Description
Big Joe BJ 78409 load wheel assembly features a 4.00 inch diameter and 2.75 inch width, constructed with 92A durometer polyurethane and a precision steel hub for Millennium Series electric pallet trucks. Compatible with OEM and alternate part numbers including 78409, BJ78409, BJ78409-A, and 078409. Designed for electric lift truck load wheel replacement applications.
Specifications
Material & Construction
| Tread Material | Polyurethane |
| Hub Construction | Precision machined steel core |
Part Numbers
| OEM Part Number | 78409 |
| Manufacturer Part Number | BJ78409 |
| Alternate Part Number | 078409 |
| Cross-Reference Part Numbers | Big Joe 78409, BJ78409, 78409, BJ78409-A, 078409, BJ078409 |
Frequently Asked Questions
Q: What are the dimensions and material specifications for the BJ 78409 load wheel?
A: The BJ 78409 features a 4.00 inch diameter and 2.75 inch width. The tread is constructed from 92A durometer polyurethane, which provides a balance of wear resistance and load capacity. The hub is precision machined steel with powder coat finish for corrosion resistance.
Q: Which Big Joe Millennium Series electric pallet trucks does the BJ 78409 fit?
A: The BJ 78409 is designed for Big Joe Millennium Series electric pallet trucks. This load wheel assembly is a direct OEM replacement for that product line. Verify your equipment model and serial range match before ordering to confirm compatibility.
Q: What are the cross-reference and alternate part numbers for the BJ 78409?
A: The BJ 78409 is also referenced as 78409, BJ78409, BJ78409-A, 078409, and BJ078409. These are equivalent part numbers for the same load wheel assembly. The OEM part number is BJ 78409 and the manufacturer part number is 78409.
Q: How does the 92A durometer polyurethane compare to other tread compounds for load wheel durability?
A: 92A durometer polyurethane is a hard compound that resists wear and abrasion on concrete and smooth warehouse floors. This hardness rating means it will maintain its shape under full load and high-mileage operation. For applications with wet floors or cold storage environments, softer or specialized high-traction compounds may provide better grip.
Q: What is the typical service life of the BJ 78409 load wheel in normal operation?
A: Polyurethane load wheels typically last 2 to 5 years depending on operating conditions, load weight, floor surface, and usage frequency. The precision needle bearings and precision steel hub support long-term reliability. Maintenance involves inspecting for flat spots, cracking, and bearing wear. Replace the wheel if the tread becomes uneven or the hub shows damage.
Q: Can the BJ 78409 be used as an interchangeable replacement on other electric pallet truck brands?
A: The BJ 78409 is manufactured for Big Joe Millennium Series equipment. While the 4.00 inch diameter and 2.75 inch width dimensions may fit other brands with similar hubs, we recommend confirming bore diameter, hub type, and load rating match your specific equipment before installation. Verify with your equipment documentation for compatibility.