7010 CE/HCP4AL1DT
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7010 CE/HCP4AL1DT Bearing Product Overview & Core Advantages
The 7010 CE/HCP4AL1DT is a precision angular contact ball bearing supplied as a matched duplex tandem (DT) set. Engineered for the most demanding applications, this bearing combines a P4A super-precision tolerance class with a 15° contact angle and ceramic ball construction. Its core advantages include exceptional high-speed capability (up to 41,000 rpm), superior rigidity from its duplex preloaded arrangement, and the ability to handle significant combined loads in a compact envelope. This configuration is ideal for spindles requiring maximum axial stiffness and positional accuracy.
7010 CE/HCP4AL1DT Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 7010 | Basic bearing series and size (50mm bore, 80mm OD) | Defines the core bearing dimensions. |
| CE | Contact angle of 15° | Optimized for high-speed operation and moderate axial loads. |
| HC | Hybrid Ceramic (Silicon Nitride balls) | Reduces centrifugal forces, enabling higher speeds, lower heat generation, and longer service life. |
| P4A | Tolerance class superior to ABEC 7 / ISO P4 | Guarantees extreme running accuracy, low vibration, and predictable performance for precision bearings. |
| L1 | Light preload | Eliminates internal clearance, maximizing system rigidity and rotational accuracy. |
| DT | Duplex Tandem arrangement (2 bearings) | Configured to primarily support heavy unidirectional thrust loads, effectively doubling the axial load capacity in one direction. |
7010 CE/HCP4AL1DT Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The use of silicon nitride (Si3N4) balls with a chrome steel ring provides significant performance gains. Ceramic balls are lighter, harder, and have a lower coefficient of thermal expansion than steel, which directly contributes to lower operating temperatures and a higher limiting speed.
Phenolic Resin Cage (Retainer): The lightweight and robust phenolic cage offers excellent performance at high speeds, providing good strength and guidance with minimal friction.
Duplex Tandem (DT) Preload: The two bearings are manufactured and supplied as a matched set with a light preload (L1). This configuration provides exceptional stiffness and minimizes axial and radial run-out, which is critical for maintaining precision under load.
Open Seal & Factory Lubrication: The open design minimizes friction for maximum speed, and the bearing comes pre-lubricated for immediate operation within its specified temperature range.
7010 CE/HCP4AL1DT Bearing Typical Application Areas
This high-performance duplex tandem bearing set is specifically designed for applications requiring the ultimate in speed, precision, and rigidity. Key industries and equipment include:
- High-Frequency Machine Tool Spindles: For CNC milling, grinding, and drilling where high rotational accuracy and axial stiffness are paramount.
- Precision Robotic Drives: Used in high-speed robotic arms and precision gearboxes.
- Advanced Aerospace Systems: Gyroscopes, navigation systems, and auxiliary power units (APUs).
- High-Speed Turbomachinery: Compressors and pumps operating at extreme rotational velocities.
