S71914 CE/HCP4ADT
Hybrid Ceramic Super Precision Bearings
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S71914 CE/HCP4ADT Bearing Product Overview & Core Advantages
The S71914 CE/HCP4ADT is a super-precision angular contact ball bearing designed for the most demanding high-speed and high-rigidity applications. As a duplex tandem (DT) matched set, it is engineered to handle significant axial loads in one direction while maintaining exceptional rotational accuracy. Its construction with ceramic balls and a phenolic cage enables superior high-speed performance and thermal stability, making it an ideal choice for machine tool spindles and other precision equipment requiring maximum reliability and extended service life.
S71914 CE/HCP4ADT Bearing Model Code Explained, Specifications & Naming Convention
- S7: High-precision bearing series with specific internal geometry for optimal performance.
- 1914: Standard size designation (Bore: 70mm, OD: 100mm, Width: 32mm).
- CE: Designates a 15° contact angle, optimized for high-speed applications with high axial load capacity.
- HC: Indicates the use of Hybrid Ceramic balls (Silicon Nitride), which reduce centrifugal forces, lower operating temperatures, and permit higher limiting speeds.
- P4A: Denotes an ultra-precision tolerance class (superior to ABEC 7/ISO P4), ensuring extremely tight running accuracy and minimal vibration.
- DT: Specifies a Duplex Tandem preloaded arrangement. Two bearings are mounted together to share the axial load, significantly increasing the overall axial rigidity and load capacity in one direction.
S71914 CE/HCP4ADT Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex tandem (DT) arrangement creates a highly rigid bearing system capable of supporting heavy combined loads, particularly very high unidirectional axial loads. This configuration is essential for applications where shaft displacement must be minimized.
Superior High-Speed Performance: The combination of hybrid ceramic balls and a lightweight phenolic resin cage drastically reduces rotating mass and centrifugal forces. This results in a higher limiting speed (28,000 rpm), lower heat generation, and reduced wear compared to all-steel bearings.
Precision & Longevity: Manufactured to P4A tolerance class, this bearing guarantees exceptional running accuracy and rotational stability. The standard grease lubrication and sealed design provide long-term, maintenance-free operation within the specified temperature range of -30°C to 110°C.
S71914 CE/HCP4ADT Bearing Typical Application Areas
This high-performance bearing is primarily used in applications where extreme precision, high speed, and high rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing machines.
- High-Frequency Motors: Spindles for CNC machinery.
- Aerospace & Defense Systems: Gyroscopes and other sensitive instrumentation.
