S7013 ACD/P4ADBC
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S7013 ACD/P4ADBC Bearing Product Overview & Core Advantages
The S7013 ACD/P4ADBC is a precision duplex angular contact ball bearing set, engineered for applications demanding exceptional rigidity and running accuracy. This matched pair, arranged in a Back-to-Back (DB) configuration, is designed to withstand combined loads—significant radial loads and bidirectional axial loads simultaneously. Manufactured to a P4A tolerance class and featuring a phenolic cage, it delivers superior high-speed performance and thermal stability. Preloaded and pre-lubricated, this bearing set offers a compact, ready-to-install solution for high-precision spindles and machinery requiring high rigidity and operational reliability.
S7013 ACD/P4ADBC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| S7013 | Bearing Series & Size | Denotes a 65mm bore, 100mm OD, 36mm width angular contact bearing. |
| AC | Angular Contact | Optimized for combined radial and axial loads. |
| D | Duplex Back-to-Back (DB) | Two bearings are matched and preloaded in a back-to-back arrangement for high moment rigidity. |
| P4A | Tolerance Class | Indicates high precision levels for bore, outer diameter, and width tolerances. |
| DBC | Preload / Clearance | Specifies a moderate preload (Class C) for optimal stiffness and speed performance. |
S7013 ACD/P4ADBC Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back (DB) arrangement creates a wide effective spread, enabling the bearing set to resist moment loads and provide exceptional system rigidity. The 25° contact angle is optimized to handle substantial combined radial and axial loads from both directions.
High-Speed Performance: The lightweight and robust phenolic resin cage ensures stable operation and reduced centrifugal forces at high speeds, contributing to the high limiting speed of 31,000 rpm. The moderate preload is calibrated to minimize heat generation while maintaining positional accuracy.
Precision & Longevity: Manufactured to P4A tolerance class from high-grade chrome steel, this bearing guarantees minimal runout and consistent performance. The set is supplied pre-lubricated with grease, simplifying installation and ensuring immediate, reliable operation.
S7013 ACD/P4ADBC Bearing Typical Application Areas
The S7013 ACD/P4ADBC is ideally suited for high-performance machinery where precision, speed, and rigidity are paramount. Key applications include:
- Machine Tool Spindles (e.g., CNC milling, grinding, and turning centers)
- High-Frequency Spindles
- Precision Grinding Equipment
- Industrial Pumps and Compressors
- Robotic Arm Joints and Precision Gearboxes
