S7005 CE/P4ADBA
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S7005 CE/P4ADBA Bearing Product Overview & Core Advantages
The S7005 CE/P4ADBA is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This matched back-to-back (DB) arrangement provides superior stability and can accommodate combined radial and axial loads from both directions. Manufactured to P4A tolerance class, it delivers high running accuracy and is pre-lubricated with grease for long-term, maintenance-free operation in demanding high-speed and high-precision environments.
S7005 CE/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| S7005 | Standard bore diameter 25mm, outside diameter 47mm |
| CE | High-precision phenolic resin cage, optimized for high-speed operation |
| P4A | Super precision tolerance class (geometric tolerances tighter than ABEC 7) |
| DB | Duplex Back-to-Back arrangement for high moment rigidity |
| A | Extra light preload for minimal friction and optimal high-speed performance |
S7005 CE/P4ADBA Bearing Structural Features & Performance Benefits
High Rigidity & Stability: The duplex back-to-back (DB) configuration creates a wide effective spread between load centers, significantly increasing moment stiffness and operational stability under complex loading conditions.
Superior Load Capacity: With a 15° contact angle and double-row design, this bearing efficiently handles combined radial and bidirectional axial loads, making it ideal for applications with overturning moments.
Optimized High-Speed Performance: The lightweight phenolic resin cage (CE) reduces centrifugal forces and inertial effects, while the extra light preload (A) minimizes friction, collectively enabling a high limiting speed of 83,000 rpm.
Precision & Longevity: Manufactured to P4A super precision standards with tight dimensional tolerances, it ensures smooth, quiet, and vibration-free operation. The bearings are pre-lubricated with high-quality grease, providing reliable performance across a temperature range of -30°C to 110°C.
S7005 CE/P4ADBA Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers
- High-Speed Spindles: PCB drilling, dental handpieces, and small precision motors
- Precision Instrumentation: Measuring devices, optical scanners, and laboratory equipment
- Robotics: High-accuracy robot arm joints and rotary actuators
