7213 CD/P4ADGB
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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7213 CD/P4ADGB Bearing Product Overview & Core Advantages
The 7213 CD/P4ADGB is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, it offers superior dimensional and running accuracy. Its universal matchable (SU) design allows for flexible mounting in various preload configurations, while the light preload (Class B) ensures optimal performance with minimal friction. This bearing is engineered to handle combined loads efficiently, making it an ideal choice for high-precision, high-speed machinery where reliability is critical.
7213 CD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7213 | Basic bearing series and size designation (65mm bore, 120mm OD, 46mm width). |
| CD | Contact angle of 15° and specific internal design for high-precision applications. |
| P4A | Indicates a high-precision tolerance class with enhanced running accuracy and dimensional stability. |
| DGB | Denotes a universal matchable (SU) pair of bearings supplied as a set, pre-configured for optimal performance. |
7213 CD/P4ADGB Bearing Structural Features & Performance Benefits
High Rigidity and Precision: The angular contact design and P4A tolerance class provide superior rigidity and running accuracy, essential for maintaining precise shaft positioning under load.
Optimized Load Capacity: With a 15° contact angle, this bearing efficiently supports combined radial and axial loads. The matched pair (DGB) arrangement significantly increases system rigidity and load-sharing capabilities.
High-Speed Performance: The phenolic cage offers low weight and excellent performance at high speeds, contributing to a limiting speed of 32,500 rpm. The open design facilitates efficient lubrication management.
Universal Matching Capability: The Universal Matchable (SU) feature allows for flexible mounting in duplex arrangements (DB, DF, DT) to achieve different levels of preload and rigidity without selective mounting.
7213 CD/P4ADGB Bearing Typical Application Areas
The 7213 CD/P4ADGB is ideally suited for high-performance applications in:
- Machine Tool Spindles
- High-Speed Precision Grinding Spindles
- Industrial Pumps and Compressors
- Precision Robotics and Automation Equipment
- Aerospace and Defense Actuation Systems
