S71907 CE/P4ADBA
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S71907 CE/P4ADBA Bearing Product Overview & Core Advantages
The S71907 CE/P4ADBA is a super-precision angular contact ball bearing designed for the most demanding applications. This matched duplex set in a back-to-back (DB) arrangement delivers exceptional system rigidity and stability. Manufactured to ABEC 7 / P4A tolerance class, it guarantees outstanding running accuracy. The bearing is pre-lubricated with grease and features a phenolic cage, enabling high-speed operation while simultaneously handling combined radial and axial loads.
S71907 CE/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| S71907 | Bearing Series & Size | Indicates a 719 series bearing with a 35mm bore, 55mm OD, and 20mm width. |
| CE | Contact Angle (15°) | Optimized for high-speed performance and moderate axial load capacity. |
| P4A | Tolerance Class | Denotes super-precision running accuracy and dimensional tolerances. |
| DB | Duplex Back-to-Back Arrangement | Provides high moment rigidity and excellent stability under complex loads. |
S71907 CE/P4ADBA Bearing Structural Features & Performance Benefits
High Rigidity & Stability: The back-to-back duplex arrangement creates a wide effective spread, significantly increasing the bearing system's resistance to moment loads and ensuring superior operational stability.
Combined Load Capacity: With a 15° contact angle, this bearing is engineered to handle significant combined radial and axial loads simultaneously, making it ideal for complex loading conditions.
High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the precision-ground chrome steel components and optimized internal geometry contribute to a high limiting speed of 56,000 rpm.
Pre-optimized Set: Supplied as a precision-matched pair, these bearings are pre-set for optimal preload and performance, simplifying installation and ensuring consistent, high-accuracy operation.
S71907 CE/P4ADBA Bearing Typical Application Areas
The S71907 CE/P4ADBA is the bearing of choice for high-performance machinery requiring extreme precision and speed.
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Spindles: In PCB drilling, dental handpieces, and small precision motors.
- High-Frequency Motors: Used in robotics, aerospace actuators, and other servo applications.
- Medical Equipment: Critical components in centrifuges and imaging devices.
