S7011 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
S7011 ACE/HCP4A Bearing Product Overview & Core Advantages
The S7011 ACE/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional speed, rigidity, and accuracy. Its single-row design, combined with a 25° contact angle and P4 (ABEC-7) tolerance class, ensures superior running precision and high system rigidity. This bearing is preloaded and pre-lubricated, making it ready for immediate installation and capable of handling combined radial and axial loads simultaneously. The use of ceramic balls and a phenolic cage contributes to its outstanding high-speed performance and reduced rotational mass.
Model Code Breakdown
- S7011: Basic model number, defining the standard boundary dimensions (55mm bore, 90mm OD, 18mm width).
- ACE: A specific manufacturer designation indicating internal design features, including the 25° contact angle and likely a specific internal geometry optimized for performance.
- HC: Denotes the use of Hybrid Ceramic components, specifically ceramic balls running in steel rings.
- P4: Specifies the tolerance class P4 (ABEC-7), indicating very high dimensional and running accuracy.
- A: Indicates that the bearing is supplied with a specific preload for optimal rigidity and rotational accuracy.
S7011 ACE/HCP4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: Manufactured to P4 tolerance and supplied with a preload, this bearing delivers maximum system stiffness and minimal runout, which is critical for high-precision spindles.
Superior High-Speed Capability: The hybrid ceramic design (ceramic balls with steel rings) significantly reduces centrifugal forces and friction, enabling a high limiting speed. The lightweight phenolic resin cage further enhances stability and performance at high RPM.
Enhanced Load Capacity: The 25° contact angle is optimized to support significant axial loads in one direction, as well as combined loads, making it suitable for applications with demanding load requirements.
Long-Term Reliability: The bearing comes sealed and pre-lubricated, protecting it from contamination and providing long-term, maintenance-free operation within its specified temperature range.
S7011 ACE/HCP4A Bearing Typical Application Areas
The S7011 ACE/HCP4A is ideally suited for high-performance applications where speed, precision, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- High-Frequency Motors and Spindles
- Medical and Dental Equipment: High-speed handpieces and scanners.
- Aerospace and Defense Systems: Gyroscopes and navigation instruments.
