7210 ACD/HCP4AQBCC
Hybrid Ceramic Super Precision Bearings
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7210 ACD/HCP4AQBCC Bearing Product Overview & Core Advantages
The 7210 ACD/HCP4AQBCC is a high-precision quadruplex back-to-back angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This matched set configuration delivers superior performance in handling combined radial and axial loads simultaneously. Engineered with ceramic balls and a P4A super-precision tolerance, it is optimized for high-speed operation and offers a moderate preload (Class C) for immediate operational stability. Its compact design and high load capacity make it an ideal solution for high-reliability, precision machinery.
7210 ACD/HCP4AQBCC Bearing Model Code Explained, Specifications & Naming Convention
- 7210: Basic series number (Bore: 50 mm, OD: 90 mm, Width: 80 mm).
- ACD: Angular Contact design with a 25° contact angle.
- HCP4A: Denotes the P4A tolerance class, indicating very high running accuracy and dimensional stability.
- QBCC: Specifies the Quadruplex Back-to-Back (QBC) matched arrangement with a Class C preload. The 'Q' indicates a set of 4 bearings.
7210 ACD/HCP4AQBCC Bearing Structural Features & Performance Benefits
Unmatched Rigidity and Load Capacity: The quadruplex back-to-back arrangement creates a highly rigid bearing system that effectively resists moment loads and manages heavy combined loads. This configuration provides exceptional operational stability under challenging conditions.
High-Speed & Thermal Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic cage significantly lowers rotating mass, enabling higher limiting speeds and reducing operational friction and heat generation.
Precision and Longevity: Manufactured to P4A super-precision standards with a moderate preload, this bearing ensures minimal runout and smooth, precise rotation, which is critical for the accuracy and extended service life of the entire application.
7210 ACD/HCP4AQBCC Bearing Typical Application Areas
This bearing is specifically engineered for high-performance machinery where precision, speed, and rigidity are paramount. Key applications include:
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- High-Frequency Machining Centers
- Advanced Robotic Drives and Actuators
- Aerospace and Defense Positioning Systems
