S7012 CD/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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S7012 CD/HCP4ADGA Bearing Product Overview & Core Advantages
The S7012 CD/HCP4ADGA is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This sealed, universally matchable bearing is engineered to simultaneously handle combined radial and axial loads with high reliability. Its construction with a P4A super-precision tolerance and ceramic balls makes it ideal for high-speed spindles and other machinery where high rigidity, minimal vibration, and long service life are critical.
S7012 CD/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Benefit |
|---|---|---|
| CD | 15° contact angle, universal matchable (SU) design | Enables flexible mounting in pairs to support bidirectional axial loads. |
| HC | Hybrid Ceramic (Silicon Nitride balls) | Reduces friction, increases limiting speed, and provides superior operation in high-temperature or electrically sensitive environments. |
| P4A | Super Precision Tolerance Class | Guarantees extremely tight dimensional and running accuracy for applications requiring high precision and smooth rotation. |
| DGA | Sealed on both sides, pre-lubricated with grease | Offers effective contamination protection and is lubricated for life, reducing maintenance needs. |
S7012 CD/HCP4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The double row angular contact design and universal matching capability provide superior stiffness, enabling the bearing to withstand significant combined loads (radial and axial) from both directions.
- Exceptional High-Speed Performance: The combination of lightweight phenolic resin cage and low-friction ceramic balls significantly reduces centrifugal forces, allowing for a high limiting speed of 31,000 rpm.
- Precision and Longevity: Manufactured to P4A tolerance class with a consistent 15° contact angle, this bearing ensures minimal runout and vibration, which is critical for precision applications. The integral seals and pre-applied grease ensure long-term, maintenance-free operation.
S7012 CD/HCP4ADGA Bearing Typical Application Areas
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Instrumentation
- High-Frequency Motors and Spindles
- Medical and Dental Equipment
- Aerospace Actuation Systems