71911 ACDTP/P4B
71900 Series Super Precision Angular Contact Ball Bearings
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71911 ACDTP/P4B Bearing Product Overview & Core Advantages
The 71911 ACDTP/P4B is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. This P4 (ABEC-7) tolerance class bearing is designed to accommodate high combined loads, primarily thrust loads in one direction, making it ideal for demanding operational environments. Its compact design, featuring a 55 mm bore and 13 mm width, allows for space-saving integration into complex assemblies. The bearing is pre-lubricated and operates effectively within a temperature range of -30°C to 110°C, ensuring reliable performance and a long service life.
71911 ACDTP/P4B Bearing Model Code Explained, Specifications & Naming Convention
- 71911: Basic series designation for a single-row angular contact ball bearing.
- AC: Angular Contact design with a 25° contact angle.
- D: Signifies a high rigid phenolic resin cage.
- T: Indicates the bearing is lubricated.
- P: Denotes a preload is applied for enhanced rigidity and precision.
- P4B: Specifies the tolerance class as P4 (equivalent to ABEC-7), indicating very high precision.
71911 ACDTP/P4B Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The combination of a phenolic cage and P4 precision ensures minimal vibration and high running accuracy, which is critical for applications like machine tool spindles.
- Superior Load Capacity: With a 25° contact angle, this bearing is optimized to handle significant axial loads in one direction while also supporting substantial radial loads, offering excellent performance under combined loading conditions.
- Optimized for High-Speed Operation: The lightweight phenolic cage contributes to lower centrifugal forces, supporting the bearing's high limiting speed of 15,000 rpm.
- Pre-lubricated for Immediate Use: Factory-applied lubrication ensures the bearing is ready for installation and provides reliable operation from the start within its specified temperature range.
71911 ACDTP/P4B Bearing Typical Application Areas
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Robotic Arms and Precision Positioning Systems
