Product Description
6205-Z deep groove ball bearing with single metal shield. 25 mm bore diameter, 52 mm outside diameter, and 15 mm width. Suitable as a replacement bearing for manual pallet jack wheels and assemblies. Constructed of high carbon chromium steel with pressed steel cage, rated for radial and limited axial loads.
Specifications
Material
| Inner/Outer Ring Material | High carbon chromium steel |
| Rolling Element Material | High carbon chromium steel |
Part Numbers
| OEM Part Number | 6205-Z |
| Manufacturer Part Number | 6205Z, 6205-Z, 6205 ZJEM (SKF), BB-6205Z (JET), 6205Z04 |
| Equivalent Part Numbers | SKF 6205-Z, NSK 6205Z, NTN 6205Z, Timken 6205-Z |
| Supersedes/Replaces | Replaces earlier 6205 single-shielded series; supersedes equivalent single-shielded ball bearing part numbers matching 6205-Z type |
Performance
| Limiting Speed | 18,000 RPM |
| Reference Speed | 28,000 RPM |
Frequently Asked Questions
Q: What are the dimensions and material specifications of the 6205-Z bearing?
A: The 6205-Z is a deep groove ball bearing with a 25 mm bore diameter, 52 mm outside diameter, and 15 mm width. It is constructed of high carbon chromium steel with a pressed steel cage. The single metal shield protects one side from contamination while allowing controlled grease exchange.
Q: How does the single metal shield design of the 6205-Z differ from sealed or open bearings?
A: The single metal shield on the 6205-Z provides moderate contamination protection without creating a sealed cavity. Unlike fully sealed bearings, it allows grease migration and replenishment, which is important for manual pallet jack wheels that may require field regreasing. It offers better contamination protection than open bearings but more grease exchange than sealed designs.
Q: What load capacity does the 6205-Z bearing handle in manual pallet jack applications?
A: The 6205-Z is rated for radial and limited axial loads typical of manual pallet jack wheel assemblies. The high carbon chromium steel construction and deep groove design allow the bearing to handle repetitive loading cycles from supporting pallet loads. Consult equipment documentation to confirm load compatibility.
Q: What are the OEM and equivalent part numbers for the 6205-Z?
A: The OEM part number is 6205-Z and manufacturer part numbers include 6205Z and 6205 ZJEM (SKF designation). The bearing is also referenced as BB-6205Z (JET) and 6205Z04. Brand equivalents are SKF 6205-Z, NSK 6205Z, NTN 6205Z, and Timken 6205-Z. The 6205-Z supersedes earlier single-shielded 6205 series bearings.
Q: Is the 6205-Z suitable for manual pallet jacks operating in wet or cold storage environments?
A: The 6205-Z provides moderate protection due to its single metal shield, but extended exposure to water or extreme cold may cause grease breakdown or condensation inside the bearing cavity. For wet or cold storage operations, consider using sealed alternatives like the 6205-2RS instead. The single shield design works best in moderate warehouse environments.
