71911 ACE / HCP4A Super precision ball bearings Single Row Angular Contact Ball Bearing 7911

71911 ACE/HCP4A 55*80*13 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing Hybrid  Ceramic Balls High Speed

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

The 71911 ACE/HCP4A 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, and hybrid ceramic balls, delivers superior performance and reliability for applications requiring high rotational accuracy and stability.

What's the Performance Features of 71911 ACE/HCP4A Bearing?

The 71911 ACE/HCP4A 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 71911 ACE/HCP4A Bearing?

The 71911 ACE/HCP4A is an ultra-high-precision angular contact ball bearing designed for applications requiring extreme accuracy, high-speed performance, and reliable operation under demanding conditions. Below are its key application areas:

1. Ultra-Precision Machine Tools & Machining Equipment

• Nanoscale Machining Spindles: Used in optical manufacturing, such as machining aspheric lenses and laser crystals with surface roughness down to Ra < 0.05 μm.
• Ultra-High-Speed Milling Spindles: Ideal for cutting advanced materials like carbon fiber composites and ceramics at very high speeds.

2. Aerospace & Defense

• Aero Engine Main Shafts: Supports turbine shafts in military helicopter transmissions and other systems that require short-duration, high-speed operation.
• Satellite Attitude Control Systems: Provides reliable support for reaction wheels and solar panel drives in spacecraft.

3. Advanced Industrial Robotics

• 7-Axis Collaborative Robots: Enables joints with extremely high dynamic response and positioning repeatability of ±0.005 mm.

• Surgical Robots: Delivers precision rotary motion for minimally invasive surgical tools used in medical robotics.

4. New Energy & Ultra-High-Speed Drives

• Hydrogen Fuel Cell Compressors: Designed for ultra-high-speed impeller shafts (>30,000 rpm) that resist corrosion from hydrogen exposure.

• Ultra-High-Speed Motors (EV/Aviation): Supports motors in electric aircraft and high-performance electric vehicles (>25,000 rpm).

5. Semiconductor & Optics Manufacturing

• Extreme Ultraviolet (EUV) Lithography Machines: Vacuum-compatible motion stages with nanometer-level precision, critical for chip manufacturing.
• Wafer Polisher Spindles: Ensures smooth, vibration-free rotation for chemical mechanical polishing (CMP) equipment.

6. Scientific Research & Metrology

• Synchrotron Radiation Accelerators: High-precision rotating components used in vacuum chambers for particle beam control.
• Atomic Force Microscopes (AFM): Provides ultra-stable bearing systems for probe scanning mechanisms used in nanoscale imaging.

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