Product Description
Single row deep groove bearing assembly. 6004LU is a 20 mm bore x 47 mm outside diameter x 14 mm wide precision ball bearing with dual contact rubber seals. Compatible with many manual pallet jack wheel assemblies. High carbon chromium steel construction. Supersedes 6004, 6004RS. Cross-references to 6004-2RS, 6004LLU, and 6004DU.
Specifications
Material & Construction
| Bearing Material | High carbon chromium steel |
Mechanical Specifications
| Seal Type | Contact rubber seal both sides (2RS/LLU type) |
| Precision Rating | ABEC 1 equivalent |
| Maximum Static Load Rating | 7,600 N |
| Maximum Dynamic Load Rating | 13,600 N |
| Cage Material | Pressed steel |
Part Numbers
| Manufacturer Part Number | 6004LU |
| OEM Part Number | 6004LU |
| Cross-Reference Part Numbers | Equivalent to: 6004-2RS, 6004LLU, 6004DU, 154246 |
| Supersedes/Same as | Replaces 6004, 6004RS |
Performance Specifications
| Limiting Speed (Grease) | 19,000 RPM |
| Limiting Speed (Oil) | 22,000 RPM |
Frequently Asked Questions
Q: What are the dimensions of the 6004LU bearing?
A: The 6004LU is a 20 mm bore x 47 mm outside diameter x 14 mm wide deep groove ball bearing. These dimensions fit manual pallet jack wheel assemblies from Crown, Toyota, Raymond, and similar equipment brands that use metric bearing specifications.
Q: What types of seals does the 6004LU have?
A: The 6004LU features dual contact rubber seals on both sides (2RS/LLU type designation). Contact seals provide better protection against dirt and moisture ingress compared to open or shielded bearings, making this bearing suitable for wet or dusty warehouse environments.
Q: What material is the 6004LU constructed from?
A: The 6004LU is constructed from high carbon chromium steel (52100 grade). This material provides excellent hardness, wear resistance, and load capacity necessary for material handling equipment operating under continuous load.
Q: What are the cross-reference part numbers for the 6004LU?
A: The 6004LU is equivalent to 6004-2RS, 6004LLU, 6004DU, and 154246. It supersedes and replaces the older 6004 and 6004RS bearing models. Always verify dimensions match your equipment before ordering.
Q: What precision rating does the 6004LU meet?
A: The 6004LU is rated at ABEC 1 equivalent precision per ISO 492 Normal tolerance class. This precision level is standard for material handling equipment load wheels and meets performance requirements for manual pallet jack applications.
Q: How long does the 6004LU bearing typically last in service?
A: Bearing lifespan depends on load, speed, and maintenance. The dual contact rubber seals extend operational life by keeping out contaminants. Under normal warehouse conditions with regular equipment maintenance, expect 2-5 years of service before replacement becomes necessary.
