S7012 FE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
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S7012 FE/HCP4ADGA Bearing Product Overview & Core Advantages
The S7012 FE/HCP4ADGA is a precision angular contact ball bearing engineered for applications demanding exceptional rotational accuracy and high-speed performance. As a universally matchable (SU) bearing supplied in a pre-set pair, it delivers superior high rigidity and can accommodate combined loads (radial and axial) simultaneously. Its construction with a ceramic ball and phenolic cage enables significantly higher limiting speeds and reduced operational friction. With a P4A super-precision tolerance and factory-applied grease lubrication, this bearing is ideal for high-reliability, maintenance-minimized systems.
S7012 FE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| S7012 | Bearing series and size designation | Indicates a 60mm bore, 95mm OD, 36mm width high-precision bearing. |
| FE | Sealed on both sides | Provides effective protection against contamination, retaining lubrication. |
| HC | Hybrid Ceramic (Silicon Nitride balls) | Enables higher speed, lower friction, and longer service life. |
| P4A | Tolerance Class | Denotes super-precision running accuracy for demanding applications. |
| DGA | Contact angle and preload designation | Specifies an 18° contact angle and an Extra Light (Class A) preload for optimal stiffness at high speeds. |
S7012 FE/HCP4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The universal matchable (SU) pair arrangement creates a pre-loaded set, significantly increasing system rigidity and enabling the bearing to handle substantial combined radial and axial loads.
- Superior High-Speed Performance: The combination of lightweight ceramic balls and a phenolic resin cage reduces centrifugal forces and friction, allowing for a high limiting speed of 36,000 rpm.
- Enhanced Durability & Longevity: Hybrid ceramic construction offers excellent wear resistance and is less susceptible to lubrication starvation, extending the bearing's operational life.
- Maintenance-Free Operation: Integrated seals (FE) and factory-applied grease lubrication provide long-term, maintenance-free performance by effectively shielding the internals from contaminants and retaining the lubricant.
S7012 FE/HCP4ADGA Bearing Typical Application Areas
The S7012 FE/HCP4ADGA is ideally suited for high-performance machinery requiring precision and speed, including:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Robotics: In arm joints and rotary actuators where accuracy and rigidity are critical.
- High-Frequency Motors and Spindles: Used in PCB drilling, dental handpieces, and small tool spindles.
- Aerospace & Defense Systems: In gyroscopes, radar systems, and other precision instrumentation.
