309SG
200, 300 & 6400 Series Industrial Single Row Deep Groove Ball Bearings
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Materials
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309SG Bearing Product Overview & Core Advantages
The 309SG is a single row deep groove ball bearing engineered for superior performance in demanding industrial applications. This precision bearing is characterized by its open design and high radial load capacity, making it an ideal choice for applications requiring reliable operation under substantial radial forces. Manufactured to ABEC 1 | ISO P0 tolerance standards, it ensures consistent performance and interchangeability. Its construction from high-grade chrome steel provides excellent durability and a long service life, suitable for a wide operating temperature range.
309SG Bearing Model Code Explained, Specifications & Naming Convention
- 309: Standard designation indicating the bearing series and size.
- S: Denotes a standard radial internal clearance of CN group.
- G: Signifies the ring and ball material is Chrome Steel.
The model suffix confirms this is an open bearing without seals or shields, allowing for high-speed operation and various lubrication options post-installation.
309SG Bearing Structural Features & Performance Benefits
The 309SG's performance stems from its robust single row deep groove construction. This design is optimized to handle high radial dynamic and static loads (12,364 lbf and 9,892 lbf respectively). The absence of integrated seals minimizes friction, contributing to its high limiting speed of 7,500 rpm. The CN standard clearance provides an optimal balance for a wide range of operating conditions. The use of chrome steel for all critical components (rings, balls, cage) ensures high strength, wear resistance, and reliable operation across the specified temperature range.
309SG Bearing Typical Application Areas
This bearing is widely used in various industrial sectors due to its robust radial load capacity and high-speed capability. Common applications include:
- Electric Motors and Generators
- Industrial Gearboxes
- Material Handling Conveyors
- Agricultural Machinery
- Pumps and Compressors
