S7011 CE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S7011 CE/HCP4ADGA Bearing Product Overview & Core Advantages
The S7011 CE/HCP4ADGA is a super-precision angular contact ball bearing engineered for the most demanding high-performance applications. It is designed to accommodate combined loads (radial and axial) simultaneously and is optimized for high-speed operation and exceptional rigidity. Its universal matchable (SU) design allows for flexible mounting in pairs to handle bidirectional axial loads, making it an ideal choice for machine tool spindles and other high-accuracy, high-reliability systems.
S7011 CE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7011 | Basic bearing series, indicating a 55mm bore, 90mm OD, and 36mm width. |
| CE | Contact angle of 15°. |
| HC | Hybrid Ceramic: Features ceramic balls for reduced friction, higher speed capability, and longer service life. |
| P4A | Indicates a super-precision tolerance class (equivalent to ABEC 7), ensuring extremely tight running accuracy. |
| DGA | Sealed on both sides and pre-lubricated with high-performance grease. |
S7011 CE/HCP4ADGA Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The use of ceramic balls with a steel ring significantly reduces centrifugal forces, lowers operating temperature, and enables a higher limiting speed (46,000 rpm). This construction also offers superior resistance to wear and electrical arcing.
High Rigidity & Load Capacity: The angular contact design and 15° contact angle provide high rigidity, making it exceptionally stable under combined loads. The universal matchable (SU) feature allows two bearings to be paired for optimal load sharing and bidirectional axial load capacity.
Phenolic Cage for High-Speed Operation: The lightweight and robust phenolic cage ensures stable operation at ultra-high speeds, contributing to the bearing's impressive limiting speed.
Sealed & Pre-Lubricated for Longevity: The integrated seals and factory-applied grease protect against contamination and provide a long, maintenance-free service life within the specified temperature range of -30°C to 110°C.
S7011 CE/HCP4ADGA Bearing Typical Application Areas
This super-precision bearing is ideally suited for applications requiring the highest levels of accuracy, speed, and rigidity, including:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- High-Frequency Motors
- Precision Robotics
- Aerospace & Defense Systems
- Medical Equipment (e.g., high-speed dental handpieces)
