Bearing Assembly for Manual Pallet Jacks Ntn
6004LLU
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Compatibility
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Reference Diagrams
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Product Description
The 6004LLU bearing assembly is a single row deep groove ball bearing featuring double contact nitrile rubber seals and precision-pressed steel cage, engineered for use in manual pallet jack wheel assemblies. Rated for dynamic loads up to 2,330 lbf, with dimensional specifications 20 mm bore, 47 mm outside diameter, and 14 mm width. Equivalent to NTN 6004LLU and replaces 6004LU.
Specifications
Material & Construction
| Seal Material | Nitrile rubber |
Mechanical Specifications
| Construction Material | High carbon chromium steel, pressed steel cage |
| Rated Dynamic Load Capacity | 2,330 lbf (10.40 kN) |
| Rated Static Load Capacity | 1,140 lbf (5.05 kN) |
| Maximum Speed Rating | 11,000 RPM |
| ISO Tolerance Class | Class 0 |
Part Numbers
| OEM Part Number | 6004LLU |
| Manufacturer Part Number | 6004LLU |
| Cross-Reference Part Numbers | Equivalent to NTN 6004LLU, replaces 6004LU, supersedes 6004L |
Frequently Asked Questions
Q: What are the bore, outside diameter, and width dimensions of the 6004LLU?
A: The 6004LLU is 20 mm bore, 47 mm outside diameter, and 14 mm width. These dimensions match standard 6004 series applications in manual pallet jack wheel assemblies.
Q: What is the dynamic load capacity of the 6004LLU?
A: The 6004LLU is rated for a dynamic load capacity of 2,330 lbf (10.40 kN), suitable for load wheel and drive wheel applications in manual pallet jacks under normal warehouse duty.
Q: What seal configuration does the 6004LLU have?
A: The 6004LLU features double contact nitrile rubber seals protecting both sides of the bearing assembly from moisture and dust contamination. This configuration is standard for warehouse and indoor pallet jack operation.
Q: Is the 6004LLU equivalent to the NTN 6004LLU?
A: Yes, the 6004LLU is equivalent to NTN 6004LLU and replaces the 6004LU bearing. It also supersedes the 6004L, making it a current-generation cross-compatible replacement for manual pallet jack applications.
Q: What material is the 6004LLU cage and rolling elements made from?
A: The 6004LLU uses high carbon chromium steel for rolling elements and races, with a precision-pressed steel cage. This construction ensures durability in repeated load cycling typical of pallet jack wheel operation.
Q: What is the typical lifespan of the 6004LLU bearing in manual pallet jacks?
A: Bearing lifespan depends on load frequency, maintenance, and operating conditions. Double-sealed bearings like the 6004LLU typically last several years in normal warehouse use. Replace if wheel rotation becomes stiff, noisy, or if seal integrity is compromised.
