S7009 ACD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
Ball & Washer Dimensions
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Materials
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S7009 ACD/HCP4A Bearing Product Overview & Core Advantages
The S7009 ACD/HCP4A is a high-precision, single-row angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. Its primary advantage lies in its ability to accommodate combined radial and axial loads simultaneously, thanks to its defined 25° contact angle. Manufactured to P4 (ABEC-7) tolerance class, it guarantees superior running accuracy and rotational stability. The bearing features a phenolic resin cage and ceramic balls, contributing to its high-speed capability, reduced weight, and excellent operational characteristics under challenging conditions.
S7009 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
- S7009: Basic series designation for a high-precision angular contact ball bearing.
- A: Denotes a 25° contact angle, optimized for high axial load capacity.
- CD: Indicates a matched arrangement (in this case, a single bearing supplied as a "Duplex" pair, pre-set for specific preload and rigidity).
- HCP4A: A composite suffix where HC signifies a phenolic resin cage, and P4A confirms the P4 (ABEC-7) super-precision tolerance class.
S7009 ACD/HCP4A Bearing Structural Features & Performance Benefits
High-Speed & High-Rigidity Performance: The combination of a lightweight phenolic cage and low-density ceramic balls significantly reduces centrifugal forces, enabling a high limiting speed of 20,000 rpm. This design also enhances rigidity and minimizes vibration.
Superior Load Capacity: The 25° contact angle and high-grade materials provide excellent capacity for combined loads, making it suitable for applications with significant axial and radial force components.
Precision & Longevity: Manufactured to P4 tolerance with a preload applied, the bearing ensures precise shaft positioning, minimal runout, and extended service life in high-accuracy machinery.
Wide Operating Range: The standard lubrication and material selection allow for a functional temperature range from -30°C to 110°C.
S7009 ACD/HCP4A Bearing Typical Application Areas
The S7009 ACD/HCP4A is ideally suited for high-performance applications where speed, precision, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Aerospace & Defense Systems
- Medical & Dental Equipment
- High-Speed Robotic Drives
