7012 CD/P4ADGC
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7012 CD/P4ADGC Bearing Product Overview & Core Advantages
The 7012 CD/P4ADGC is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, this bearing is universally matchable (SU), allowing two bearings to be paired in a back-to-back (DB), face-to-face (DF), or tandem (DT) arrangement to optimize performance for specific load conditions. Its 15° contact angle and moderate preload (Class C) enable it to handle combined radial and axial loads simultaneously, making it an ideal choice for high-speed and high-precision spindles and machinery.
7012 CD/P4ADGC Bearing Model Code Explained, Specifications & Naming Convention
- 7012: Basic model number (60mm bore, 95mm OD, 36mm width).
- C: Represents a 15° contact angle.
- D: Indicates the bearing is supplied as a universally matchable pair.
- P4A: Denotes a super-precision tolerance class with specific running accuracy requirements.
- DGC: Specifies a moderate preload (Class C) applied to the bearing set.
7012 CD/P4ADGC Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The universal matchable (SU) design of two bearings enables configurations that provide high system rigidity and superior capacity for combined loads.
Precision Performance: Built to P4A tolerance class with a phenolic cage, this bearing ensures smooth operation, minimal vibration, and excellent running accuracy, which is critical for high-speed applications up to 34,000 rpm.
Optimized Material Selection: Components made from chrome steel for both rings and balls offer high durability and wear resistance. The phenolic cage contributes to lower friction and is suitable for high-speed operation.
Preload & Matching: The moderate preload (Class C) eliminates internal clearance, enhancing shaft positioning accuracy and system stiffness right from startup.
7012 CD/P4ADGC Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and rotary units requiring high rigidity and accuracy.
- High-Frequency Motors and Spindles
- Medical Equipment: Advanced imaging and surgical device rotors.
- Aerospace & Defense Systems: Gyroscopes, radar platforms, and other precision mechanisms.
