61911
618 & 619 Series Thin Section Bearings
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Basic Information
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Performance
Materials
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61911 Bearing Product Overview & Core Advantages
The 61911 metric ball bearing is a single row deep groove ball bearing engineered for high-precision radial load applications. Characterized by its open design and P6 tolerance class, this bearing delivers exceptional running accuracy and rotational stability. Its compact cross-section, with a 13 mm width, makes it ideal for applications where space is at a premium. Manufactured from high-grade chrome steel with a stainless steel cage, it offers reliable performance and long service life, making it a superior choice for demanding industrial environments requiring high reliability and precision.
61911 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 61911 | Basic model number denoting a metric, single row deep groove ball bearing with a 55mm bore and 80mm outside diameter. |
| Open (No Seal/Shield suffix) | Indicates the bearing is unsealed, allowing for higher limiting speeds and optimal heat dissipation. Suitable for environments where external sealing is provided. |
| P6 Tolerance Class | Signifies a precision bearing with tighter dimensional and running accuracy tolerances than standard (P0) bearings, resulting in superior performance. |
| CN Radial Internal Clearance | Specifies the standard (normal) radial internal clearance group, suitable for most common operating conditions. |
61911 Bearing Structural Features & Performance Benefits
The performance of the 61911 bearing is a direct result of its robust construction. The single row deep groove raceway geometry is optimized for high-speed operation, supporting a limiting speed of 11,000 rpm. The use of a stainless steel cage ensures low wear, high strength, and excellent corrosion resistance, contributing to the bearing's durability and consistent performance at high rotational velocities. With a dynamic load rating of 3707 lbf and a static load rating of 3147 lbf, it provides substantial radial load capacity. The open design allows for versatile lubrication options tailored to specific application needs, while the P6 precision ensures minimal vibration and noise, which is critical for sensitive machinery.
61911 Bearing Typical Application Areas
This precision ball bearing is widely used in applications requiring high rotational accuracy and reliability. Key sectors include:
- Electric Motors and Generators: For supporting shafts and managing radial loads efficiently.
- Precision Machine Tools: Ideal for spindles and auxiliary drives where high-speed and tight tolerances are paramount.
- Pumps and Compressors: Provides reliable performance in fluid handling equipment.
- Material Handling Equipment: Used in conveyor rollers and pulleys.
- Agricultural Machinery: Suitable for various driveline and implement applications.
