71909 CB/HCP4A Super Precision Single Row Angular Contact Ball Bearing 7909

71909 CB/HCP4A 45*68*12 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing Hybrid Ceramic Balls High Speed

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

The 71909 CB/HCP4A bearing,bore diameter is 45 mm, outside diameter is 68 mm,width is 12 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 71909 CB/HCP4A Bearing?

The 71909 CB/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 71909 CB/HCP4A Bearing?

The 71909 CB/HCP4A bearing, as a representative model of high-precision angular contact ball bearings, is mainly applied in the following fields:

1. Machine Tool Equipment

• Spindle Systems: Designed for machine tool spindles, supporting high speeds (up to 25,000 r/min with grease lubrication) and ultra-precision rotation.
• Typical Equipment: Vertical lathes, cross-cutting machines, thread machining tools, and machining centers, especially suited for high rigidity and precise positioning.

2. Industrial Precision Transmission

• Printing and Packaging Machinery: Such as Heidelberg printing presses, requiring low friction and high stability.
• Laboratory Equipment: Precision instruments like mass spectrometers and laser devices, relying on its low-vibration performance.

3. Special Environment Applications

• Contaminated Environments: The sealed design effectively isolates contaminants, extending service life in casting and heat treatment equipment.
• High-Speed and High-Temperature Scenarios: Hybrid ceramic ball versions are suitable for high-speed, high-temperature applications like turbochargers.

4. Other Industrial Fields

• Construction Machinery: Such as gear pumps and hydraulic systems, where it handles combined radial and axial loads.
• Aerospace: Some variants are used in extreme conditions, such as rocket fuel pumps.