Product Description
Bearing, 20MM, Rubber Shield
Specifications
Compatibility
| Equivalent Industrial SKUs | 6204-ZZ, 6204-2RS, 6204-ZZ-C3 (metal shield variants) |
Part Numbers
| OEM Part Number | No BS 6204 ZZ part number found in manufacturer or approved distributor sources |
Performance
| Fatigue Load Limit | Koyo 6204 ZZ: 0.510 kN |
Frequently Asked Questions
Q: What does the ZZ designation mean on this bearing?
A: The ZZ designation indicates dual metal shields on both sides of the bearing. This provides the highest level of contamination protection among shielded bearings. However, increased friction compared to single-shield or open designs results in slightly higher operating temperatures.
Q: What are the dimensions and specifications of the BS 6204 ZZ?
A: The BS 6204 ZZ has a 20 mm inner diameter, 47 mm outer diameter, and 14 mm width. Equivalent bearings include Koyo 6204 ZZ with a fatigue load limit of 0.510 kN. This bearing is suitable for heavy-duty pallet jacks and material handling equipment under continuous load.
Q: Which environments is the BS 6204 ZZ best suited for?
A: The dual-shield design makes the BS 6204 ZZ ideal for wet washdown areas, cold storage facilities, outdoor equipment, and dusty industrial environments. The high contamination protection extends bearing life significantly compared to open or single-shield designs in harsh conditions.
Q: Is the BS 6204 ZZ factory pre-greased and can it be re-lubricated?
A: Yes, the BS 6204 ZZ is factory pre-greased and does not require lubrication before installation. Re-lubrication is not typically necessary during normal service life. If grease migration is required, the metal shields can be carefully removed, however this reduces contamination protection.
Q: What are equivalent cross-reference part numbers for the BS 6204 ZZ?
A: The BS 6204 ZZ is equivalent to industry standard 6204-ZZ bearings. Cross-references include 6204-2RS (contact seal variant), 6204-ZZ-C3 (metal shield variant for higher speeds), and equivalents from SKF, KOYO, FAG, and NSK. Verify specifications match your equipment requirements before ordering.