Product Description
Big Joe BJ 078408 92A Polyurethane Load Wheel Assembly, 4 inch diameter by 2 inch width, optimized for Series 21A, 21P, and 21R electric lift trucks. Features precision aluminum hub, sealed ball bearings, and 92A durometer polymer for extended wear applications.
Specifications
Compatibility
| Compatible Models | Series 21A, Series 21P, Series 21R electric lift trucks |
| Interchange Information | Direct-fit for Big Joe 21A, 21P, and 21R series electric pallet trucks |
Material
| Wheel Material | Polyurethane tread, molded to precision aluminum hub |
Part Numbers
| Manufacturer Part Number | BJ 078408 |
| Alternate Part Number | BJ078408 |
| IBH Part Number | BJ078408 |
Frequently Asked Questions
Q: What are the specifications of the BJ 078408 load wheel?
A: The BJ 078408 is a 92A durometer polyurethane load wheel measuring 4 inches in diameter by 2 inches in width. It features a precision aluminum hub with sealed ball bearings molded to the polyurethane tread.
Q: Which Big Joe electric lift truck models use the BJ 078408?
A: The BJ 078408 is compatible with Big Joe Series 21A, Series 21P, and Series 21R electric lift trucks. It is a direct-fit replacement for wheels on these models.
Q: What does 92A durometer polyurethane mean for the BJ 078408?
A: 92A durometer indicates a harder polyurethane compound compared to standard 70D or 80D formulations. The 92A hardness provides extended wear life and is optimized for high-cycle operations and extended service applications.
Q: Why does the BJ 078408 use an aluminum hub?
A: Precision aluminum hubs reduce weight compared to steel hubs while maintaining strength. The aluminum hub is precision-molded with polyurethane for consistent balance and runout, improving handling and reducing vibration.
Q: How does the 92A polyurethane compound affect wheel lifespan?
A: The harder 92A compound resists deformation and abrasion better than softer polyurethane grades, extending wheel lifespan under high-volume use. This makes the BJ 078408 suitable for demanding warehouse and material handling operations.
Q: Are sealed bearings included on the BJ 078408?
A: Yes, the BJ 078408 includes sealed ball bearings that protect against moisture and dust infiltration. Sealed bearings reduce maintenance and provide consistent performance throughout the wheel service life.