S71907 CDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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S71907 CDGA/HCP4A Bearing Product Overview & Core Advantages
The S71907 CDGA/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. Engineered with a 15° contact angle and manufactured to P4A super-precision tolerance, this bearing excels at simultaneously handling combined radial and axial loads. Its compact design, featuring a ceramic ball and phenolic cage, delivers superior high-speed performance and rigidity, making it an ideal solution for high-rotation accuracy machinery.
S71907 CDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
- S7: High-precision bearing series
- 1907: Standard size designation (35mm bore, 55mm OD, 10mm width)
- CD: Universal matchable design (can be paired in any combination)
- GA: Light preload (Class A)
- HC: Hybrid Ceramic (steel rings with ceramic balls)
- P4A: Super precision tolerance class (exceeds ABEC 7)
S71907 CDGA/HCP4A Bearing Structural Features & Performance Benefits
This bearing's construction delivers distinct performance advantages:
- High Rigidity & Load Capacity: The angular contact design and precise P4A tolerances provide stable support against complex combined loads, ensuring minimal deflection under operation.
- Exceptional High-Speed Capability: The lightweight phenolic resin cage and low-friction silicon nitride (Si3N4) ceramic balls significantly reduce centrifugal forces, enabling a limiting speed of 56,000 rpm.
- Reduced Heat Generation & Long Service Life: Ceramic balls offer superior hardness, lower thermal expansion, and electrical insulation, leading to less wear, reduced lubrication demands, and extended bearing life in harsh environments.
- Precision Performance: The universal matchable (SU) designation and tight bore and outside diameter tolerances ensure predictable performance and ease of assembly in precision arrangements.
S71907 CDGA/HCP4A Bearing Typical Application Areas
The S71907 CDGA/HCP4A is ideally suited for high-performance applications where speed, precision, and reliability are critical:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers
- Precision Robotics: Arm joints and high-accuracy positioning systems
- Medical Equipment: Dental handpieces, centrifuges, and imaging devices
- Aerospace Systems: Gyroscopes, navigation instruments, and auxiliary power units
- High-Frequency Motors: Spindles for PCB drilling and semiconductor manufacturing
