S7022 ACEGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S7022 ACEGA/HCP4A Bearing Product Overview & Core Advantages
The S7022 ACEGA/HCP4A is a high-precision, single-row angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered to accommodate combined loads (radial and axial loads in one direction), it features a 25° contact angle and an extra light preload (Class A) for optimal rigidity and minimal deflection under operational stresses. Its construction with ceramic balls and a phenolic cage contributes to its suitability for high-speed operation, while the sealed design with pre-applied grease lubrication ensures long-term, maintenance-free service. This bearing is part of a universally matchable set, allowing for precise preload control in complex arrangements.
S7022 ACEGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Benefit / Implication |
|---|---|---|
| S7022 | Basic bearing designation, indicating the size series and bore diameter (110 mm). | Defines the core bearing dimensions. |
| AC | Angular Contact design. | Optimized for handling combined loads. |
| EGA | Universal Matchable bearing (SU designation). | Can be paired with other bearings from the same set to achieve specific preload and stiffness. |
| HC | Hybrid Ceramic (Ceramic balls with steel rings). | Enables higher limiting speeds, reduced weight, and improved durability. |
| P4A | High precision tolerance class (superior to ABEC 7). | Ensures extremely low runout and vibration for superior rotational accuracy. |
S7022 ACEGA/HCP4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: The single-row angular contact design with a 25° contact angle and extra light preload provides high system rigidity, minimizing axial and radial play for precise shaft positioning. The P4A tolerance class guarantees exceptional dimensional and running accuracy.
Enhanced High-Speed Capability: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic resin cage significantly lowers rotating mass and inertia. This design is instrumental in achieving the high limiting speed of 16,000 rpm.
Superior Load Capacity: Engineered to handle significant combined radial and axial loads simultaneously, with a dynamic load rating of 10,102 lbf and a static load rating of 9,562 lbf.
Maintenance-Free Operation: The sealed design and pre-applied grease lubrication protect against contamination and retain lubricant, offering reliable performance across a wide temperature range from -30°C to 110°C without the need for re-lubrication.
S7022 ACEGA/HCP4A Bearing Typical Application Areas
The S7022 ACEGA/HCP4A is ideally suited for high-performance machinery where precision, speed, and reliability are paramount. Key application areas include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Robotics: In robot arm joints and gears requiring high accuracy and rigidity.
- High-Frequency Motors and Spindles: Where low friction and high rotational speeds are critical.
- Medical and Laboratory Equipment: In centrifuges and other devices demanding quiet, clean, and precise operation.
- Aerospace Actuation Systems: For control surfaces and other mechanisms requiring reliable performance under demanding conditions.
