S7005 CE/HCP4ADGB
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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S7005 CE/HCP4ADGB Bearing Product Overview & Core Advantages
The S7005 CE/HCP4ADGB is a high-precision double row angular contact ball bearing engineered for demanding applications requiring exceptional rotational accuracy and reliability. This sealed ceramic hybrid bearing combines the benefits of ceramic balls with a phenolic cage and universal matchable design, delivering superior performance in high-speed and long-life scenarios. Its compact double-row construction enables it to simultaneously handle combined radial and axial loads from both directions, making it an ideal solution for compact, high-rigidity spindle arrangements.
S7005 CE/HCP4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7005 | Basic bearing series, indicating a double row angular contact ball bearing with 25mm bore, 47mm OD. |
| CE | Hybrid ceramic bearing with silicon nitride (Si3N4) balls. |
| HC | High-Capacity phenolic resin cage. |
| P4A | High-precision tolerance class (equivalent to ABEC 7/ISO P4). |
| DGB | Universal Matchable (SU) arrangement designation, allowing bearings to be mounted in any combination. |
S7005 CE/HCP4ADGB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row angular contact design provides high radial and axial rigidity, enabling stable support under combined loads. With a 15° contact angle, it efficiently manages bidirectional axial loads.
- Superior High-Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic cage significantly lowers friction and inertial mass, allowing for a high limiting speed of 83,000 rpm.
- Extended Service Life & Reliability: The sealed construction retains grease and excludes contaminants. The hybrid ceramic/steel material combination reduces wear and is less susceptible to electrical arcing, enhancing longevity.
- Precision & Thermal Stability: The P4A tolerance class ensures minimal runout and vibration. The phenolic cage offers excellent dimensional stability across the operating temperature range of -30°C to 110°C.
S7005 CE/HCP4ADGB Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance machinery requiring high speed, accuracy, and reliability. Key applications include:
- High-Frequency Machine Tool Spindles
- Precision Grinding Spindles
- High-Speed Motors & Turbomachinery
- Medical & Dental Handpiece Drives
- Aerospace Instrumentation & Actuators
