S7019 ACB/HCP4A
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
Ball & Washer Dimensions
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S7019 ACB/HCP4A Bearing Product Overview & Core Advantages
The S7019 ACB/HCP4A is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. Engineered as a single, preloaded unit, it excels at handling combined radial and axial loads simultaneously. Its construction with a ceramic ball and phenolic cage contributes to superior high-speed performance and reduced weight. With a P4 (ABEC-7) tolerance class and factory-applied lubrication, this bearing is optimized for high rigidity and long-term, maintenance-free operation in demanding environments.
S7019 ACB/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
- S7019: Basic bearing series designation, indicating a 95mm bore, 145mm OD, and 24mm width.
- ACB: Angular Contact Bearing, signifying its design to support combined loads.
- HCP4A: A composite suffix indicating specific performance characteristics.
- HC: Likely refers to the Hybrid Ceramic construction (Ceramic balls, Steel rings).
- P4: Denotes the P4 tolerance class (ABEC-7), ensuring ultra-high running accuracy.
- A: Indicates a 25° contact angle, optimized for supporting higher axial loads.
S7019 ACB/HCP4A Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The angular contact design with a defined 25° contact angle provides high axial and radial stiffness, enabling the bearing to withstand significant combined loads.
Superior High-Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic cage allows for a very high limiting speed of 13,000 rpm, minimizing heat generation and power loss.
Precision and Longevity: Manufactured to a P4 tolerance class, this bearing ensures minimal runout and vibration, which is critical for precision applications. The hybrid construction also offers enhanced durability and resistance to wear.
Preloaded & Ready-to-Install: Supplied as a preloaded, single matched arrangement, it simplifies installation and guarantees immediate, precise performance without the need for complex adjustment.
S7019 ACB/HCP4A Bearing Typical Application Areas
This high-performance bearing is ideally suited for advanced machinery requiring high speed, precision, and reliability, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Equipment
- Aerospace & Defense Systems
- Medical & Dental Equipment
