S7004 CE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S7004 CE/HCP4ADGA Bearing Product Overview & Core Advantages
The S7004 CE/HCP4ADGA is a high-precision double row angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. Engineered to simultaneously accommodate combined loads (radial and bidirectional axial loads), its compact design offers a space-saving solution. Featuring a P4A super-precision tolerance class and ceramic balls, this bearing delivers superior high-speed performance, high rigidity, and extended service life, making it ideal for the most critical spindle and precision machinery applications.
S7004 CE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| S7004 | Basic bearing series and size designation | Defines the core dimensions: 20mm bore, 42mm OD, 24mm width |
| CE | Ceramic (Silicon Nitride) balls | Enables higher speeds, reduced friction, and longer life |
| HC | Phenolic (Hybrid Composite) cage | Provides excellent high-speed stability and low weight |
| P4A | Super Precision Tolerance Class | Guarantees extremely tight running accuracy for high-precision applications |
| DGA | Universal Matchable (SU) arrangement, 2 bearings in set | Allows for flexible mounting in back-to-back, face-to-face, or tandem arrangements to optimize preload and stiffness |
S7004 CE/HCP4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row angular contact design provides superior high rigidity and can support significant combined loads, including radial loads and bidirectional axial loads, making it exceptionally stable under complex loading conditions.
Superior High-Speed Performance: The combination of ceramic balls and a lightweight phenolic cage (HC) significantly reduces centrifugal forces, enabling a high limiting speed of 100,000 rpm. This makes it an ideal high-speed bearing for spindle applications.
Precision & Longevity: Manufactured to P4A super-precision tolerances, this bearing ensures minimal runout and vibration. The sealed construction with pre-applied grease lubrication protects against contamination and provides reliable operation within a temperature range of -30°C to 110°C.
Flexible Mounting: As a Universal Matchable (SU) bearing supplied in a set of two, it offers engineers flexibility in mounting configurations to achieve the desired preload (Extra light / Class A) and system stiffness.
S7004 CE/HCP4ADGA Bearing Typical Application Areas
The S7004 CE/HCP4ADGA is engineered for high-performance applications where precision, speed, and reliability are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles.
- Precision Instruments: Measuring and testing equipment.
- High-Speed Motors and Drives: Servo motors, high-frequency spindles.
- Aerospace & Defense Systems: Gyroscopes, navigation systems.
- Medical Equipment: Dental handpieces, high-speed centrifuges.
