7010 ACDGB/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7010 ACDGB/HCP4A Bearing Product Overview & Core Advantages
The 7010 ACDGB/HCP4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. Designed to accommodate combined radial and axial loads simultaneously, this bearing features a 25° contact angle and a light preload (Class B), making it ideal for machine tool spindles and other high-speed machinery. Its construction with ceramic balls and a phenolic cage contributes to lower friction, higher limiting speeds, and reduced thermal expansion, ensuring reliable performance in demanding operational environments.
7010 ACDGB/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
- 7010: Basic designation indicating a metric series angular contact bearing with 50mm bore, 80mm OD.
- AC: Angular Contact design.
- D: High contact angle (25°).
- GB: Universal Matchable (SU) bearing, supplied in a set of 3 for precise preload arrangement.
- HC: Hybrid Ceramic, indicating ceramic balls and steel rings.
- P4A: High precision tolerance class (exceeds ABEC 7), ensuring ultra-precise running accuracy and minimal runout.
7010 ACDGB/HCP4A Bearing Structural Features & Performance Benefits
This bearing's performance is defined by its advanced material selection and precision engineering:
- High Rigidity & Load Capacity: The 25° contact angle and optimized internal geometry provide excellent resistance to combined loads, enhancing system stability.
- Superior High-Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a phenolic resin cage enables a high limiting speed of 46,000 rpm, making it a true high-speed bearing.
- Precision & Accuracy: Manufactured to P4A tolerance class, this bearing ensures minimal vibration and superior running accuracy, critical for precision spindles.
- Reduced Maintenance: The open design is pre-lubricated, suitable for applications with centralized lubrication systems, offering long-term reliability.
7010 ACDGB/HCP4A Bearing Typical Application Areas
The 7010 ACDGB/HCP4A is ideally suited for high-performance applications where speed, precision, and rigidity are paramount:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and rotary actuators requiring high accuracy and stiffness.
- High-Speed Motors: Spindles for PCB drilling and dental handpieces.
- Aerospace & Defense: Gyroscopes, radar systems, and other precision instrumentation.
