S7009 CE/HCP4ADBA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S7009 CE/HCP4ADBA Bearing Product Overview & Core Advantages
The S7009 CE/HCP4ADBA is a precision duplex angular contact ball bearing designed for the most demanding high-performance applications. This matched set features a Back-to-Back (DB) arrangement, providing exceptional rigidity and the ability to withstand combined radial and axial loads from both directions. Manufactured to an ultra-precise P4A tolerance class and utilizing ceramic balls, it is engineered for superior high-speed operation, reduced friction, and extended service life in critical machinery.
S7009 CE/HCP4ADBA Bearing Model Code Explained, Specifications & Naming Convention
- S7009: Basic series designation for a 45mm bore, 75mm OD angular contact ball bearing.
- CE: Indicates the bearing is equipped with Hybrid Ceramic balls (Steel rings with Silicon Nitride balls).
- HC: Specifies the use of a Phenolic (Polyamide) cage.
- P4A: Denotes an ultra-precision tolerance class exceeding ABEC 7/ISO P4, ensuring minimal runout and vibration.
- A: Signifies an Extra Light preload is applied to the matched set.
- DB: Identifies the Duplex Back-to-Back mounting arrangement of the two bearings in the set.
S7009 CE/HCP4ADBA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex Back-to-Back (DB) arrangement creates a rigid bearing system that effectively resists moment loads and manages combined loads, making it ideal for applications requiring high positional accuracy.
Superior High-Speed Performance: The combination of lightweight phenolic cage and low-density, hard ceramic balls reduces centrifugal forces and friction, enabling a high limiting speed of 46,000 rpm. This hybrid ceramic design also minimizes heat generation.
Extended Service Life & Reliability: Ceramic balls are electrically resistant, harder, and smoother than steel, leading to dramatically reduced wear, especially in poor lubrication conditions. The P4A precision ensures smooth, quiet operation with minimal vibration.
Pre-Configured for Optimal Performance: The bearing set is supplied pre-loaded (Class A) and ready for installation, eliminating complex adjustment procedures and guaranteeing immediate, optimal performance.
S7009 CE/HCP4ADBA Bearing Typical Application Areas
- High-Frequency Machine Tool Spindles
- Precision Grinding Spindles
- High-Speed Robotic Arms
- Advanced Dental and Medical Handpieces
- Aerospace Actuators and Control Systems
- High-Performance Turbochargers
