S7013 ACD/HCP4ADT
Hybrid Ceramic Super Precision Bearings
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S7013 ACD/HCP4ADT Bearing Product Overview & Core Advantages
The S7013 ACD/HCP4ADT is a high-precision duplex tandem angular contact ball bearing designed for demanding applications requiring exceptional rigidity and speed capabilities. This matched bearing set features a P4A super-precision tolerance class and is preloaded, enabling it to handle significant combined loads (radial and axial) with high running accuracy. Its construction with a phenolic cage and ceramic balls contributes to its superior high-speed performance and extended service life, making it an ideal choice for high-reliability spindles and precision machinery.
S7013 ACD/HCP4ADT Bearing Model Code Explained, Specifications & Naming Convention
- S7013: Basic series code for a 65mm bore, 100mm OD angular contact ball bearing.
- A: Denotes a 25° contact angle, optimized for supporting high axial loads.
- CD: Indicates a Duplex Tandem (DT) arrangement. Two bearings are mounted together to increase axial load capacity in one direction.
- HC: Signifies the use of Hybrid Ceramic components (ceramic balls with steel rings).
- P4A: Specifies a super-precision tolerance class, exceeding ABEC 7/ISO P4 standards for exceptional running accuracy.
- ADT: Confirms the bearing is supplied as a pre-loaded, duplex tandem set, ready for installation.
S7013 ACD/HCP4ADT Bearing Structural Features & Performance Benefits
Enhanced Rigidity and Load Capacity: The duplex tandem arrangement of two preloaded bearings creates an exceptionally rigid bearing system, capable of withstanding heavy combined radial and axial loads.
Superior High-Speed Performance: The combination of a lightweight phenolic resin cage and hybrid ceramic construction (ceramic balls) significantly reduces centrifugal forces, lowers operating temperature, and allows for a very high limiting speed of 31,000 rpm.
Reduced Maintenance & Long Service Life: The bearing is sealed and pre-lubricated with high-performance grease, protecting it from contamination and providing long-term, maintenance-free operation within a wide temperature range of -30°C to 110°C.
Precision Engineering: Manufactured to P4A tolerance class with a precisely controlled 25° contact angle, this bearing ensures minimal runout and vibration for applications demanding the highest levels of accuracy.
S7013 ACD/HCP4ADT Bearing Typical Application Areas
This bearing is engineered for high-performance applications where precision, speed, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles (High-speed milling, grinding, and turning centers)
- Precision Grinding Spindles
- High-Frequency Machining Centers
- Robotic Drives and Servo Motors
- Aerospace and Defense Actuation Systems
