6305 ETN9
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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6305 ETN9 Bearing Product Overview & Core Advantages
The 6305 P6 is a single row deep groove ball bearing engineered for exceptional precision and reliability in demanding applications. Characterized by its P6 tolerance class and CN radial internal clearance, this bearing is optimized for applications requiring high running accuracy and smooth operation. Its fundamental design enables efficient handling of radial loads, while its deep groove raceways also accommodate moderate axial loads in both directions. Manufactured from high-grade chrome steel and featuring a lightweight nylon cage, it offers an excellent balance of strength, speed capability, and durability.
6305 ETN9 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 6305 | Basic Bearing Series & Size | Indicates a medium-duty, metric deep groove ball bearing with a 25mm bore, 62mm OD, and 17mm width. |
| P6 | Tolerance Class | Denotes a precision tolerance grade superior to standard (P0), ensuring tighter dimensional control for higher running accuracy and reduced vibration. |
| (Open) | Seal Type | The bearing is supplied without seals or shields, allowing for higher limiting speeds and facilitating custom lubrication schemes. |
6305 ETN9 Bearing Structural Features & Performance Benefits
- High Precision & Low Noise: The P6 tolerance class ensures minimal dimensional variation, leading to superior rotational accuracy and quieter operation, which is critical for precision machinery.
- Optimized Speed Performance: The combination of an open design and a lightweight nylon cage minimizes friction and centrifugal forces, enabling a high limiting speed of 16,000 rpm.
- Robust Load Capacity: With a dynamic load rating of 5845 lbf and a static load rating of 3012 lbf, this bearing is designed to handle significant radial loads and moderate combined loads over a long service life.
- Versatile Application Readiness: The open seal type and CN clearance provide flexibility. It can be lubricated with grease or oil as per specific application requirements and is suitable for a wide operating temperature range from -30°C to 120°C.
6305 ETN9 Bearing Typical Application Areas
The 6305 P6 precision bearing is ideally suited for a wide range of industrial equipment where accuracy and reliability are paramount. Key application areas include:
- Electric Motors and Generators
- Precision Gearboxes and Transmissions
- Machine Tool Spindles and Auxiliary Drives
- Pumps and Compressors
- Material Handling Systems
- Medical and Laboratory Equipment
