S7012 CE/P4ADFA
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S7012 CE/P4ADFA Bearing Product Overview & Core Advantages
The S7012 CE/P4ADFA is a precision duplex angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This matched set features a Face-to-Face (DF) arrangement and an Extra Light (A) preload, making it ideal for high-speed spindles and other precision machinery. Its primary advantage lies in its ability to support combined loads (radial and axial) simultaneously from both directions, providing superior stiffness and rotational stability in a compact design.
S7012 CE/P4ADFA Bearing Model Code Explained, Specifications & Naming Convention
- S7012: Standard bore (60mm), outside diameter (95mm), and width (36mm) dimensions.
- C: 15° contact angle, optimized for high-speed operation and axial load capacity.
- E: High-Grade Phenolic Resin Cage, contributing to lower friction, reduced weight, and superior high-speed performance.
- P4A: High-Precision Tolerance Class, ensuring extremely tight dimensional and running accuracy for demanding applications.
- DF: Duplex Face-to-Face arrangement. This configuration increases system rigidity and is particularly effective for withstanding overturning moments.
- A: Extra Light Preload, which minimizes friction and heat generation, making it suitable for very high-speed applications.
S7012 CE/P4ADFA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex DF arrangement and two-piece phenolic cage create an exceptionally rigid bearing unit capable of handling significant combined radial and bidirectional axial loads.
- Superior High-Speed Performance: The combination of the 15° contact angle, lightweight phenolic cage, and extra light preload allows for a high limiting speed of 36,000 rpm, making it an excellent high-speed bearing.
- Precision & Accuracy: Manufactured to P4A tolerance class with tight bore, OD, and width tolerances, this bearing guarantees minimal runout and vibration for ultra-precise applications.
- Sealed & Lubricated for Life: As a sealed bearing pre-lubricated with grease, it is protected from contamination and is maintenance-free within its specified temperature range (-30°C to 110°C).
S7012 CE/P4ADFA Bearing Typical Application Areas
- Machine Tool Spindles (High-speed milling, grinding, and turning centers)
- Precision Grinding Spindles
- High-Frequency Machining Centers
- High-Speed Pumps and Compressors
- Other precision rotary equipment requiring high rigidity, speed, and accuracy.