6309-2Z/C4VA208
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Part No.
Part No.
6309-2Z/C4VA208
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
811 g
Tolerance class
ABEC 1 | ISO P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
45 mm
Bore diameter tolerance
-0.012mm to 0
Outside diameter
100 mm
Outside diameter tolerance
-0.015mm to 0
Width
25 mm
Width tolerance
-0.120mm to 0
Performance
Temperature range
-30°to 350 °C
Radial dynamic load rating
11915 lbf
Radial static load rating
7194 lbf
Limiting speed
6.7 X 1000 rpm
Lubrication
Soild Lubricant
Radial internal clearance
C4
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Chrome Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
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6309-2Z/C4VA208 Bearing Product Overview & Core Advantages
The 6309-2Z/C4VA208 is a single row deep groove ball bearing engineered for robust performance in demanding applications. Its core advantages stem from a combination of shielded design and C4 radial internal clearance, making it an excellent choice for applications requiring reliable operation under radial loads. The bearing is pre-lubricated with a solid lubricant, enabling consistent performance across a wide temperature range from -30°C to 350°C. Its ABEC 1 (ISO P0) tolerance class ensures dependable precision for general industrial use.
6309-2Z/C4VA208 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| -2Z | Non-contact steel shields on both sides | Provides effective contamination protection while maintaining high-speed capability and low friction. |
| /C4 | Greater than normal radial internal clearance | Accommodates thermal expansion in applications with significant temperature gradients or heavy loads, preventing premature failure. |
| VA208 | Solid lubricant filling | Enables operation in high-temperature environments and conditions where liquid lubricants would fail, offering long-term, maintenance-free service. |
6309-2Z/C4VA208 Bearing Structural Features & Performance Benefits
- Robust Load Capacity: With a dynamic load rating of 11915 lbf and a static load rating of 7194 lbf, this bearing is designed to handle significant radial loads in continuous operation.
- Optimized High-Speed Performance: The combination of a chrome steel cage, precision-ground components, and non-contact shields allows for a limiting speed of 6,700 rpm, making it suitable for a variety of motor and drive applications.
- Extended Service Life & Maintenance-Free Operation: The 2Z shields protect the internal components from contaminants, while the solid lubricant (VA208) ensures consistent lubrication without re-greasing, significantly reducing maintenance requirements.
- Thermal Stability: The specified C4 radial clearance is crucial for applications experiencing thermal expansion, preventing binding and ensuring smooth operation across the entire temperature range.
6309-2Z/C4VA208 Bearing Typical Application Areas
This bearing is ideally suited for a wide range of industrial machinery and equipment, including:
- Electric Motors and Gearboxes
- Industrial Fans and Blowers
- Conveyor Systems
- Agricultural Machinery
- Material Handling Equipment
- Any application requiring a reliable, shielded bearing for radial loads in challenging environments, including those with elevated temperatures.
