S7017 CE/P4ADBA
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S7017 CE/P4ADBA Bearing Product Overview & Core Advantages
The S7017 CE/P4ADBA is a precision duplex angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This back-to-back (DB) matched pair configuration delivers superior performance in handling combined loads, including significant radial and bidirectional axial forces. Manufactured to P4A tolerance class with an extra light preload (Class A), it ensures minimal runout and stable operation in high-precision machinery. The sealed design with phenolic cage makes it suitable for high-speed operation up to 28,000 rpm while maintaining long-term reliability.
S7017 CE/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7017 | Basic bearing series, 85mm bore, 130mm OD |
| CE | Contact angle of 15° |
| P4A | High precision tolerance class (equivalent to ABEC 7) |
| DB | Duplex Back-to-Back arrangement for high moment stiffness |
| A | Extra light preload for minimal friction and heat generation |
S7017 CE/P4ADBA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back configuration creates a wide effective spread between load centers, significantly enhancing moment stiffness and enabling the bearing to handle heavy combined loads (radial: 12,578 lbf dynamic; axial from both directions).
Precision Performance: Manufactured to P4A tolerance class with tight dimensional control (bore/OD tolerance: -0.004mm to 0), this bearing ensures exceptional running accuracy and minimal vibration for precision applications.
High-Speed Capability: The phenolic cage offers excellent strength-to-weight ratio and smooth operation at limiting speeds of 28,000 rpm. The 15° contact angle optimizes speed performance while maintaining good axial load capacity.
Sealed & Lubricated Design: Factory-sealed and pre-lubricated with grease, the bearing provides protection against contamination and is ready for immediate installation, reducing maintenance requirements.
S7017 CE/P4ADBA Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers
- Precision Gearboxes: Industrial transmission systems requiring high rigidity
- High-Speed Motors: Spindle motors and high-frequency applications
- Medical Equipment: CT scanners, dental handpieces, and laboratory automation
- Aerospace Components: Guidance systems and auxiliary power units
