Deep Groove Ball Bearing for Manual Pallet Jacks
6304Z2
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Compatibility
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Product Description
Deep groove ball bearing assembly 6304Z2 for manual pallet jack applications; features 20 mm bore, 47 mm outer diameter, 14 mm width, double metal shields. Cross-compatible with 6304-ZZ, 6304-2RS, 63042Z; direct replacement for manual pallet truck bearing assemblies.
Specifications
Material & Construction
| Cage Material | Stamped steel |
Part Numbers
| OEM Part Number | 6304Z2 |
| Manufacturer Part Number | 6304Z2 |
| Cross-Reference Part Numbers | Equivalent to 6304-ZZ, 6304-2RS, 63042Z, 6304ZZ |
| Supersedes/Replaces | Supersedes 6304ZZ, replaces 6304-2RS, 63042Z |
Frequently Asked Questions
Q: What are the physical dimensions of the 6304Z2 bearing?
A: The 6304Z2 deep groove ball bearing measures 20 mm bore diameter, 47 mm outer diameter, and 14 mm width. It is designed as a drop-in replacement for manual pallet truck bearing assemblies using the 6304 series standard.
Q: What is the difference between the 6304Z2 and 6304-2RS?
A: The 6304Z2 uses double metal shields (Z) which provide basic contamination protection. The 6304-2RS uses double nitrile rubber seals (2RS), which seal the bearing more tightly and include pre-lubrication, reducing maintenance needs. The 2RS variant is better for wet or dirty environments.
Q: Is the 6304Z2 interchangeable with 63042Z and 6304-ZZ?
A: Yes, the 6304Z2 is directly cross-compatible with 63042Z, 6304-ZZ, and 6304ZZ. All four part numbers reference identical bearing dimensions and design. They come from different manufacturers or supplier part numbering schemes but meet the same specification.
Q: What type of bearing cage and internal clearance does the 6304Z2 use?
A: The 6304Z2 uses a pressed steel cage and standard radial internal clearance (C0). This clearance is appropriate for manual pallet jack applications where moderate radial loads and normal operating temperatures are expected.
Q: Can the 6304Z2 be used in high-temperature or extreme cold applications?
A: The 6304Z2 metal shields provide limited temperature flexibility. For standard warehouse conditions, it performs reliably. For cold storage below minus 10 degrees Celsius or temperatures above 60 degrees Celsius, verify operating limits with specifications. Extended cold storage may require pre-lubricated sealed variants like 6304-2RS.