S7017 CD/P4ADBA
Sealed Super Precision Angular Contact Ball Bearings
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S7017 CD/P4ADBA Bearing Product Overview & Core Advantages
The S7017 CD/P4ADBA is a precision duplex back-to-back angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This P4A tolerance class bearing features a sealed design and is preloaded for immediate installation, delivering superior performance in high-speed, high-precision environments. Its duplex back-to-back configuration provides excellent stability and can accommodate combined loads (radial and bidirectional axial loads) simultaneously, making it ideal for demanding applications where high rigidity and precise shaft positioning are critical.
S7017 CD/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7017 | Basic bearing designation (85mm bore, 130mm OD, 44mm width) |
| CD | Duplex arrangement in Back-to-Back (DB) configuration |
| P4A | High precision tolerance class with enhanced running accuracy |
| DBA | Indicates specific preload level: Extra light preload (Class A) |
S7017 CD/P4ADBA Bearing Structural Features & Performance Benefits
High Rigidity & Precision: The duplex back-to-back arrangement creates a wide effective spread between load centers, significantly increasing system rigidity and moment load capacity. Combined with P4A precision tolerances, this ensures minimal runout and exceptional rotational accuracy.
Optimized Load Capacity: With a 15° contact angle and duplex construction, this bearing is engineered to handle significant combined radial and axial loads from both directions simultaneously, providing stable operation under complex loading conditions.
High-Speed Capability: The phenolic resin cage offers excellent strength-to-weight ratio and smooth operation at high speeds, supporting the impressive limiting speed of 28,000 rpm. The sealed design retains lubrication effectively during high-speed rotation.
Ready-to-Install Performance: The bearing comes pre-greased and with extra light preload (Class A) applied, eliminating the need for complex adjustment during installation while ensuring immediate optimal performance.
S7017 CD/P4ADBA Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers requiring extreme accuracy and rigidity
- High-Speed Spindles: PCB drilling machines, precision engraving equipment, and small tool spindles
- Precision Instrumentation: Measuring devices, optical equipment, and laboratory instruments
- Robotics: High-accuracy robotic arm joints and precision positioning systems
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging devices
