S7022 ACE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S7022 ACE/HCP4ADGA Bearing Product Overview & Core Advantages
The S7022 ACE/HCP4ADGA is a high-precision double row angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and reliability. Its design enables it to simultaneously support substantial combined loads (radial and bidirectional axial loads) with high rigidity. Featuring a universal matchable (SU) design, two bearings can be paired in any combination to achieve the desired preload, offering superior flexibility in spindle design. The use of ceramic balls and a P4A tolerance class ensures outstanding high-speed performance, low heat generation, and extended service life, making it an ideal choice for ultra-precision and high-speed machinery.
S7022 ACE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
The model number S7022 ACE/HCP4ADGA is decoded as follows, detailing its specific technical features:
- S70: Series designation for a high-precision, 25° contact angle angular contact ball bearing.
- 22: Bore diameter code (110 mm).
- ACE: Specific internal design and cage type (Phenolic cage).
- HC: Hybrid Ceramic, indicating the balls are made of ceramic material.
- P4A: Tolerance class denoting very high dimensional and running accuracy, superior to ABEC 7/ISO P4.
- DGA: Designates a universal matchable bearing set, where two bearings are supplied as a matched set.
S7022 ACE/HCP4ADGA Bearing Structural Features & Performance Benefits
The S7022 ACE/HCP4ADGA incorporates advanced design elements that deliver significant performance benefits:
- High Rigidity & Load Capacity: The double row design provides superior rigidity and can handle significant combined loads and bidirectional axial loads, ensuring stable operation under demanding conditions.
- Superior High-Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic cage allows for a very high limiting speed of 16,000 rpm, minimizing friction and heat generation.
- Exceptional Precision: Manufactured to a P4A tolerance class, this bearing guarantees minimal runout and vibration, which is critical for achieving high levels of machining accuracy and surface finish.
- Long-Term Reliability: The bearing is sealed and pre-lubricated with grease, protecting it from contamination and providing maintenance-free operation throughout its service life. The hybrid construction also offers increased resistance to wear and a longer operational lifespan.
S7022 ACE/HCP4ADGA Bearing Typical Application Areas
This high-performance bearing is ideally suited for applications where precision, speed, and reliability are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: High-accuracy joints and arms.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other precision instruments.
- Medical Equipment: High-speed dental handpieces and imaging device rotors.
- Semiconductor Manufacturing: Wafer handling robots and precision stages.
