309/C3
With Filling Slots Deep Groove Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
309/C3 Bearing Product Overview & Core Advantages
The 309/C3 is a single row deep groove ball bearing designed for robust performance in general industrial applications. This metric bearing excels in handling primarily radial loads and offers a high limiting speed. Manufactured to ABEC 1 | ISO P0 tolerance standards, it provides reliable and consistent operation. A key feature is its C3 radial internal clearance, which makes it particularly suitable for applications involving thermal expansion or where interference fits are used, ensuring optimal performance under varying operational conditions.
309/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning | Benefit |
|---|---|---|
| 309 | Standard bearing series designation indicating bore diameter (45mm) and dimensional series. | Ensures interchangeability and standard bearing dimensions. |
| /C3 | Specifies a radial internal clearance greater than the Normal (CN) group. | Accommodates thermal expansion, prevents pre-loading in tight fits, and enhances bearing service life in demanding environments. |
309/C3 Bearing Structural Features & Performance Benefits
Robust Construction for High Load Capacity: Built entirely from chrome steel for the rings, balls, and cage, this bearing offers high strength and durability. Its single row deep groove construction is optimized to carry significant radial dynamic (12364 lbf) and static load ratings (9892 lbf).
Optimized for Versatile Applications: The open seal type allows for easy re-lubrication and is ideal for clean environments or where specific lubricants are applied. The C3 clearance provides operational stability in applications with expected shaft and housing temperature differentials.
High-Speed Capability: With a limiting speed of 7,500 rpm, this bearing is engineered for efficient high-speed operation, making it a versatile choice for various machinery.
309/C3 Bearing Typical Application Areas
The 309/C3 bearing is widely used across multiple industries due to its robust design and C3 clearance. Key application areas include:
- Electric Motors and Generators
- Industrial Gearboxes and Transmissions
- Agricultural Machinery
- Material Handling Equipment (e.g., conveyor pulleys)
- General Industrial Machinery with shaft interference fits
