S71912 CE/P4ADBA
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S71912 CE/P4ADBA Bearing Product Overview & Core Advantages
The S71912 CE/P4ADBA is a super-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This duplex back-to-back (DB) arrangement bearing set is preloaded to Class A (Extra Light), providing outstanding running accuracy and high system stiffness. It excels at handling combined loads (radial and axial) simultaneously, making it ideal for high-speed spindles and other precision machinery where minimal deflection and high reliability are critical.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| S | Super-precision bearing |
| 71912 | Bearing series and size designation (60mm bore, 85mm OD, 26mm width) |
| C | 15° contact angle |
| E | Optimized internal design |
| P4A | High precision tolerance class (equivalent to ABEC 7) |
| DB | Duplex Back-to-Back arrangement |
| A | Extra Light preload |
S71912 CE/P4ADBA Bearing Structural Features & Performance Benefits
High Rigidity & Precision: The duplex back-to-back configuration creates a rigid bearing system that effectively resists moment loads, ensuring exceptional running accuracy under combined loads. The P4A tolerance class guarantees minimal dimensional variations for superior performance.
Optimized High-Speed Performance: The phenolic resin cage offers excellent strength-to-weight ratio, reducing centrifugal forces and enabling stable operation at the limiting speed of 32,500 rpm. The 15° contact angle provides an optimal balance between radial and axial load capacity for high-speed applications.
Premium Material Construction: Manufactured from chrome steel for both rings and balls, this bearing delivers high fatigue life and durability. The standardized grease lubrication ensures immediate startup and reliable operation within the specified temperature range.
S71912 CE/P4ADBA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles
- Precision Rotary Systems: Measuring instruments, optical scanners
- High-Frequency Motors: Spindle motors, high-RPM drives
- Medical Equipment: Dental handpieces, laboratory centrifuges
- Aerospace Components: Gyroscopes, navigation systems
