7020 ACD/HCP4ALQBCC
Hybrid Ceramic Super Precision Bearings
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7020 ACD/HCP4ALQBCC Bearing Product Overview & Core Advantages
The 7020 ACD/HCP4ALQBCC is a precision quadruplex matched angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This high-rigidity bearing set features a back-to-back quadruplex arrangement (QBC) capable of handling complex combined loads including radial and significant axial loads in both directions. Manufactured to P4A super-precision tolerance with ceramic balls and phenolic cage, it delivers superior high-speed performance and thermal stability for critical machinery applications.
7020 ACD/HCP4ALQBCC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7020 | Basic bearing size designation (100mm bore × 150mm OD) |
| ACD | Angular Contact Design with 25° contact angle |
| HCP4A | High Carbon Phenolic cage with P4A precision class |
| L | Light preload (Moderate / Class C) |
| QBCC | Quadruplex Back-to-Back Combination with universal matching |
7020 ACD/HCP4ALQBCC Bearing Structural Features & Performance Benefits
Enhanced Rigidity: The quadruplex back-to-back arrangement creates an exceptionally stiff bearing system that minimizes deflection under heavy combined loads, making it ideal for applications requiring precise positioning and minimal runout.
Superior Load Capacity: With a radial dynamic load rating of 46,800 lbf and radial static load rating of 72,000 lbf, this bearing set handles significant radial and axial loads simultaneously while maintaining precision alignment.
High-Speed Capability: The combination of ceramic balls and phenolic cage enables operation at 15,000 rpm limiting speed, reducing centrifugal forces and providing excellent thermal stability under high rotational speeds.
Precision Performance: Manufactured to P4A tolerance class with tight dimensional controls (bore tolerance: -0.004mm to 0), this bearing ensures minimal vibration and superior running accuracy for precision applications.
7020 ACD/HCP4ALQBCC Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers requiring extreme rigidity and accuracy
- Aerospace Components: Jet engine accessories, flight control systems, and auxiliary power units
- High-Speed Robotics: Industrial robot arms and precision automation equipment
- Medical Equipment: CT scanners, MRI systems, and surgical robotics requiring reliable precision
- Semiconductor Manufacturing: Wafer handling equipment, precision positioning stages, and inspection machines
