6307-ZNR
6300 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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6307-ZNR Bearing Product Overview & Core Advantages
The 6307-ZNR is a single row deep groove ball bearing designed for exceptional radial load capacity and reliable operation. This metric bearing features a snap ring on its outer ring for simplified axial location within a housing, eliminating the need for complex housing shoulders. Manufactured from chrome steel with a stainless steel cage, it offers robust performance and corrosion resistance. Pre-lubricated with grease and equipped with shields, it provides effective contamination protection, making it a low-maintenance solution for a wide range of industrial applications requiring high reliability and ease of installation.
6307-ZNR Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| -Z | Shield on one side | Protects bearing from contaminants while retaining lubrication. |
| -NR | Snap Ring Groove on outer ring | Enables secure and cost-effective axial location, simplifying housing design. |
6307-ZNR Bearing Structural Features & Performance Benefits
- High Radial Load Capacity: The deep groove raceway and chrome steel construction enable high radial dynamic load rating of 7891 lbf and radial static load rating of 4271 lbf, ensuring durability under demanding conditions.
- Simplified Assembly & Axial Location: The integrated snap ring (fitted) acts as an outer ring locating feature, providing a positive stop and reducing assembly complexity and cost.
- Contamination Protection & Long Service Life: The shielded seal effectively retains the factory-applied grease lubrication and excludes larger contaminants, contributing to a maintenance-free operation within its specified temperature range of -30° to 120 °C.
- Stable High-Speed Operation: The lightweight, robust stainless steel cage ensures stable ball guidance, supporting the bearing's limiting speed of 12,000 rpm.
- Standard Precision & Clearance: Manufactured to P0 tolerance class with CN group radial internal clearance, it delivers consistent and reliable performance for general industrial applications.
6307-ZNR Bearing Typical Application Areas
The 6307-ZNR is ideally suited for applications requiring reliable radial load support and simplified housing design. Common uses include:
- Electric Motors and Gearboxes
- Industrial Fans and Blowers
- Material Handling Equipment (e.g., conveyor pulleys)
- Agricultural Machinery
- Automotive Components (e.g., alternators, idlers)
