S71911 CE/P4A 55*80*13 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing 

Super-precision, high-speed E design, single row angular contact ball bearing with seals

The S71911 CE/P4A bearing,bore diameter is 55 mm, outside diameter is 80 mm,width is 13 mm,featuring precise dimensions, high static load capacity, P4A precision grade, delivers superior performance and reliability for applications requiring high rotational accuracy and stability.

What's the Performance Features of S71911 CE/P4A Bearing?

The S71911 CE/P4A angular contact ball bearing is engineered for high-precision and high-performance applications, featuring very tight tolerances suitable for precise machinery, the ability to handle both radial and axial loads simultaneously, high-speed operation with stability, low torque and friction for energy efficiency, enhanced rigidity for accuracy under heavy loads, durability with extended service life, effective performance across a wide temperature range.

What's the Applications of the S71911 CE/P4A Bearing?

The S71911 CE/P4A is a high-precision angular contact ball bearing designed for demanding applications that require exceptional speed, accuracy, and reliability. Below are its key application areas across various industries.

1. Machine Tool Industry

• Spindle Units: Widely used in CNC machine tools, grinding machines, and milling machines for high-precision machining.
• High-Speed Motorized Spindles: Ideal for high-speed cutting operations (e.g., aluminum alloy processing), where minimizing thermal deformation and vibration is critical.

2. Precision Instruments

• Optical Equipment: Supports high-resolution motion components in rotary tables and microscope stages.
• Measurement Instruments: Used in Coordinate Measuring Machines (CMMs) and laser alignment systems to ensure repeatable and accurate positioning.

3. Aerospace

• Aero Engine Auxiliaries: Provides high-speed rotor support in fuel pumps and turbochargers.
• Flight Control Systems: Applied in actuators and attitude adjustment mechanisms where high reliability and precision are essential.

4. Robotics & Automation

• Industrial Robot Joints: Suitable for use in precision reducers or direct-drive components in collaborative robots (Cobots).
• Semiconductor Equipment: Supports wafer-handling robotic arms and motion stages in photolithography machines, ensuring nanometer-level precision.

5. Medical Devices

• High-Speed Centrifuges: Used in rotating components of blood separators and DNA sequencers for stable, high-RPM operation.
• Imaging Systems: Provides rotational support for gantries in CT and MRI scanners, ensuring smooth and quiet operation.

6. Automotive Industry

• High-Performance Engines: Applied in turbocharger bearing units and racing drivetrains for enhanced durability under extreme conditions.
• EV/Electric Drives: Offers high-speed rotor support in electric motors, especially in advanced 800V platform motors used in high-performance EVs.

If you need more detailed information , feel free to ask!