Product Description
Polyurethane load wheel assembly for Big Joe electric pallet jack, 3 inch nominal diameter, 3.75 inch nominal width, Shore A 70 durometer hardness, corrosion resistant, supplied with press-fit ball bearings, part number BJ 78237
Specifications
Material & Construction
| Wheel Material | Polyurethane tread |
| Polyurethane Hardness | Shore A 70 |
| Corrosion Resistance | Corrosion resistant |
| Bearing Type | Press-fit ball bearings |
Physical Specifications
Part Numbers
| Manufacturer Part Number | BJ 78237 |
Frequently Asked Questions
Q: What are the key specifications for the BJ 78237 load wheel?
A: The BJ 78237 features a polyurethane wheel with Shore A 70 durometer hardness. It includes press-fit ball bearings and is corrosion resistant. The polyurethane construction and bearing system make it suitable for general warehouse and material handling operations.
Q: How does the diameter compare to smaller load wheel sizes?
A: The diameter provides a larger wheel radius than smaller alternatives, which results in smoother rolling over small obstacles and floor imperfections. This larger size reduces rolling resistance and requires less operator effort on rougher floors. The width provides better load distribution compared to narrower wheels.
Q: What does Shore A 70 durometer mean for the BJ 78237 polyurethane wheel?
A: Shore A 70 durometer is a medium hardness rating measured on the Shore A scale (used for flexible materials like polyurethane). This hardness provides good traction on most warehouse floors while resisting premature wear. It offers a balance between grip and durability for standard indoor material handling without specialized floor conditions.
Q: Does the BJ 78237 wheel resist corrosion in humid environments?
A: Yes, the BJ 78237 is specified as corrosion resistant, making it suitable for humid warehouse environments and areas with occasional water exposure. The polyurethane material and corrosion-resistant bearings minimize rust formation on the wheel assembly. This feature extends component life in facilities with moisture challenges.
Q: What bearing type does the BJ 78237 use and how does it differ from other designs?
A: The BJ 78237 uses press-fit ball bearings, which are pressed directly into the wheel hub during manufacturing. This design creates a sealed, permanent assembly that requires no maintenance. Press-fit bearings are cost-effective and reliable for standard duty applications where bearing removal is not necessary during the wheel lifespan.
Q: What is the expected lifespan of this polyurethane load wheel?
A: Polyurethane load wheels with press-fit bearings typically provide 2-4 years of service life under normal warehouse operating conditions (8-hour shifts, typical pallet jack utilization). Lifespan varies based on floor type, load frequency, and environmental conditions. Periodic inspection for wear and tread degradation is recommended every 12 months.
