7019 ACB/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7019 ACB/HCP4A Bearing Product Overview & Core Advantages
The 7019 ACB/HCP4A is a single-row angular contact ball bearing engineered for applications demanding high precision and superior performance under combined loads. Its design is optimized to support significant axial loads in one direction alongside radial loads, making it ideal for high-speed and high-rigidity applications. Manufactured to a P4 (ABEC-7) tolerance class and featuring a phenolic cage and ceramic balls, this bearing delivers exceptional rotational accuracy, reduced friction, and extended service life in demanding operational environments.
Model Code Breakdown
- 7019: Basic series designation, indicating a metric, single-row angular contact bearing with a 95mm bore.
- ACB: Signifies specific internal design optimizations for contact angle and preload, tailored for high rigidity and precise operation.
- HCP4A: Denotes the tolerance class P4 (ABEC-7) and likely includes specifications for high-precision matching and preload (A).
7019 ACB/HCP4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: The 25° contact angle and availability of preload enable this bearing to achieve high system stiffness, minimizing deflection under load for superior positional accuracy.
High-Speed Capability: The combination of a lightweight phenolic cage and low-density ceramic balls reduces centrifugal forces, allowing for a high limiting speed of 19,000 rpm.
Enhanced Durability and Temperature Performance: Ceramic ball material offers excellent wear resistance and can operate effectively within a broad temperature range from -30°C to 110°C.
Precision Engineering: Manufactured to P4 tolerance with tight dimensional controls on the bore diameter, outside diameter, and width, ensuring consistent, high-performance integration into precision assemblies.
7019 ACB/HCP4A Bearing Typical Application Areas
The 7019 ACB/HCP4A is ideally suited for high-performance applications, including:
- Machine Tool Spindles
- High-Speed Motors and Precision Gearboxes
- Aerospace Actuation Systems
- Medical and Laboratory Equipment
