S7009 ACE/HCP4AQBCA
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
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S7009 ACE/HCP4AQBCA Bearing Product Overview & Core Advantages
The S7009 ACE/HCP4AQBCA is a high-precision quadruplex matched bearing set designed for the most demanding applications. This metric angular contact ball bearing configuration features a back-to-back arrangement (QBC), providing exceptional system rigidity and stability. Its core advantages include the ability to handle combined radial and axial loads simultaneously, superior running accuracy from its P4A tolerance class, and high-speed capability enabled by ceramic balls and a phenolic cage. This sealed, pre-greased set is engineered for high reliability and long service life in precision machinery.
S7009 ACE/HCP4AQBCA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| S7009 | Bearing series and size designation | Indicates a 45mm bore, 75mm OD, 64mm width bearing from the 7009 series. |
| ACE | 25° Contact Angle, Phenolic Cage, High Precision | Optimized for high-speed operation and rigid support. |
| HC | Hybrid Ceramic | Ceramic balls for reduced friction, higher speed, and longer life. |
| P4A | Tolerance Class | Denotes extra-high precision running accuracy and dimensional tolerances. |
| QBC | Quadruplex Back-to-Back | Four bearings matched and pre-loaded in a back-to-back arrangement for maximum moment stiffness. |
S7009 ACE/HCP4AQBCA Bearing Structural Features & Performance Benefits
Unmatched Rigidity: The quadruplex back-to-back (QBC) configuration creates an extremely stiff bearing system, capable of resisting complex moment loads and shaft deflection, which is critical for maintaining precision under heavy combined loads.
Superior High-Speed Performance: The combination of low-density ceramic balls and a lightweight, robust phenolic resin cage significantly reduces centrifugal forces, enabling a high limiting speed of 46,000 rpm. The 25° contact angle provides an excellent balance between axial load capacity and speed.
High Precision & Long Life: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration. The hybrid ceramic construction offers inherent resistance to wear and electrical arcing, leading to a dramatically extended service life compared to all-steel bearings.
Ready-to-Install & Sealed: The set is supplied pre-lubricated with grease and sealed, protecting the high-precision internals from contamination and simplifying installation. This makes it a maintenance-free solution for the designated temperature range.
S7009 ACE/HCP4AQBCA Bearing Typical Application Areas
This high-performance matched set is engineered for advanced machinery where precision, speed, and rigidity are paramount. Key applications include:
- High-Frequency Machine Tool Spindles: For CNC milling, grinding, and drilling centers requiring extreme accuracy and high rotational speeds.
- Precision Robotic Drives: In robotic arms and joints where high moment stiffness and low friction are essential.
- Advanced Aerospace & Defense Systems: Including gyroscopes, radar systems, and other critical rotating assemblies.
- High-Speed Motors and Turbomachinery: Where low vibration and high durability are required at elevated speeds.
