S7009 ACE/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S7009 ACE/HCP4A Bearing Product Overview & Core Advantages
The S7009 ACE/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional performance. This sealed single bearing is designed to accommodate combined radial and axial loads simultaneously. Its key advantages include superior high-speed capability and high rigidity, achieved through a 25° contact angle and ceramic ball construction. Preloaded and manufactured to a P4 (ABEC-7) tolerance class, it delivers outstanding running accuracy and reliability in compact assemblies.
Model Code In-Depth Analysis
- S7009: Basic model number denoting a 45mm bore, 75mm OD bearing.
- ACE: Designates specific internal design features, including the 25° contact angle and optimized internal geometry for high performance.
- HC: Indicates the use of Hybrid Ceramic balls (Silicon Nitride), which reduce centrifugal forces, lower operating temperature, and enable higher speeds.
- P4: Specifies the tolerance class equivalent to ABEC-7, ensuring extremely tight dimensional and running accuracy.
- Sealed: The bearing is equipped with integral seals to protect against contamination and retain lubricant.
- Lubricated: The bearing is pre-lubricated with a high-performance grease suitable for its specified temperature range.
S7009 ACE/HCP4A Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The angular contact design and preload provide high system rigidity, enabling precise positioning and excellent resistance to operational forces. It can support significant combined radial and axial loads.
Superior High-Speed Performance: The combination of ceramic balls (reducing mass and inertia) and a lightweight phenolic resin cage significantly lowers centrifugal forces and friction, allowing for a high limiting speed of 29,000 rpm.
Enhanced Durability and Longevity: Hybrid ceramic construction offers superior resistance to wear and a longer service life compared to all-steel bearings, especially in high-speed or poorly lubricated conditions. The integral seals protect the bearing from contaminants, ensuring consistent performance.
Precision Operation: Manufactured to P4 tolerance, this bearing guarantees minimal runout and vibration, which is critical for applications requiring high rotational accuracy.
S7009 ACE/HCP4A Bearing Typical Application Areas
The S7009 ACE/HCP4A is ideally suited for high-performance machinery and precision equipment, including:
- Machine Tool Spindles
- High-Speed Motors and Spindles
- Precision Grinding Applications
- Robotic Drives and Arms
- Aerospace Actuation Systems
- Medical and Dental Handpieces
