309-Z
With Filling Slots Deep Groove Bearings
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Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
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309-Z Bearing Product Overview & Core Advantages
The 309-Z is a single row deep groove ball bearing designed for robust performance in demanding applications. Engineered with metric dimensions and manufactured from high-grade chrome steel, this bearing excels at handling radial loads efficiently. Its shielded design (Z-type) offers effective contamination protection while the nylon cage ensures smooth operation and is suitable for a wide temperature range from -30°C to 120°C. This combination of features makes the 309-Z a reliable and versatile choice for general industrial machinery requiring consistent performance and durability.
309-Z Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Interpretation | Technical Significance |
|---|---|---|
| 309 | Standard Bearing Series & Size Code | Defines the core dimensions: 45 mm bore, 100 mm OD, 25 mm width. |
| -Z | Shielded on One Side | Provides effective protection against contaminants while allowing for grease lubrication and maintaining lower friction than contact seals. |
309-Z Bearing Structural Features & Performance Benefits
- Robust Load Capacity: With a dynamic load rating of 12,364 lbf and a static load rating of 9,892 lbf, the 309-Z is built to handle significant radial forces, ensuring long service life in demanding conditions.
- Optimized High-Speed Operation: The lightweight nylon cage minimizes centrifugal forces, contributing to a high limiting speed of 7,500 rpm and ensuring stability and reduced vibration at elevated rotational speeds.
- Precision and Reliability: Manufactured to P0 tolerance class with a standard (CN) radial internal clearance, this bearing offers consistent performance and interchangeability, making it a dependable component for precision assemblies.
- Low-Maintenance Design: The combination of a shielded seal and factory-preloaded grease lubrication protects the bearing from contaminants and retains lubricant, resulting in extended service intervals and reduced maintenance requirements.
309-Z Bearing Typical Application Areas
The 309-Z deep groove ball bearing is widely used across various industries due to its versatility and reliability. Common applications include:
- Electric Motors and Generators
- Industrial Gearboxes and Transmissions
- Material Handling Equipment (e.g., conveyor rollers)
- Agricultural Machinery
- Pumps and Compressors
- General Industrial Machinery requiring robust radial load support
