7014 CDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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7014 CDGA/HCP4A Bearing Product Overview & Core Advantages
The 7014 CDGA/HCP4A is a single row angular contact ball bearing engineered for applications demanding the highest levels of precision and speed. Manufactured to the stringent P4A tolerance class, it offers exceptional dimensional stability and running accuracy. A key feature is its universal matchable (SU) design, allowing two bearings to be paired in a back-to-back (DB) or face-to-face (DF) arrangement to support combined loads and moments. The use of a phenolic resin cage and ceramic balls significantly reduces weight and inertia, enabling superior high-speed performance and operation at elevated temperatures.
7014 CDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
- 7014: Basic designation indicating a 70mm bore, 110mm OD, and 20mm width.
- CDGA: A specific manufacturer's suffix denoting internal design, contact angle (15°) , and universal matching (SU) capability.
- HCP4A: A composite suffix where:
- HC: Indicates the use of Hybrid Ceramic balls (Silicon Nitride).
- P4A: Specifies the tolerance class, exceeding ABEC 7/ISO P4 standards for superior precision.
7014 CDGA/HCP4A Bearing Structural Features & Performance Benefits
High Precision & Rigidity: The P4A dimensional and running tolerances, combined with a 15° contact angle, provide excellent rotational accuracy and system rigidity, crucial for high-precision spindles.
Superior High-Speed Capability: The hybrid ceramic design with lightweight phenolic cage minimizes centrifugal forces and friction, allowing for a high limiting speed of 22,000 rpm. This construction also reduces heat generation.
Enhanced Load Capacity: With a dynamic load rating of 11,700 lbf and a static load rating of 10,238 lbf, this bearing is capable of handling significant radial and axial (thrust) loads.
Universal Matching for Versatility: The Universal Matchable (SU) feature allows for precise preloading when two bearings are mounted in opposition, simplifying assembly and optimizing performance for specific application requirements.
7014 CDGA/HCP4A Bearing Typical Application Areas
This high-precision, high-speed bearing is ideally suited for demanding applications such as:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Robotics (Articulated arm joints, high-speed actuators)
- Aerospace & Defense Systems (Gyroscopes, radar equipment, auxiliary power units)
- High-Frequency Motors and Spindles
