7201 CD/P4ADGB
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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7201 CD/P4ADGB Bearing Product Overview & Core Advantages
The 7201 CD/P4ADGB is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and high-speed performance. As a Universal Matchable (SU) bearing, it is supplied in a pre-set pair, enabling simplified installation and optimal performance. Its key advantages include the ability to handle combined loads (radial and axial), high operational rigidity due to its specific contact angle, and superior running accuracy mandated by its P4A tolerance class. This makes it an ideal choice for high-reliability, high-precision machinery.
7201 CD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7201 | Basic model number for a light series, 12mm bore angular contact ball bearing. |
| CD | Specifies a 15° contact angle and indicates the bearing is part of a Universal Matchable (SU) pair. |
| P4A | Denotes a high-precision tolerance class with enhanced dimensional and running accuracy requirements. |
| DGB | Indicates a Light preload (Class B) is applied to the matched pair, increasing rigidity and minimizing axial play. |
7201 CD/P4ADGB Bearing Structural Features & Performance Benefits
Optimized Contact Angle and Rigidity: The 15° contact angle is engineered to efficiently support combined loads, providing high axial rigidity which is crucial for precise shaft positioning.
Precision and Speed: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration. The phenolic cage contributes to low friction and high-speed capability, supporting a limiting speed of 95,000 rpm. The light preload (DGB) further enhances high-speed stability and system rigidity.
Universal Matching Design: As a Universal Matchable (SU) bearing, any two bearings can be paired without selective matching, simplifying procurement, inventory, and assembly while ensuring consistent, high performance in back-to-back, face-to-face, or tandem arrangements.
Material and Lubrication: Constructed from chrome steel for rings and balls, ensuring durability and long service life. The bearing is pre-lubricated for immediate operation.
7201 CD/P4ADGB Bearing Typical Application Areas
- Machine Tool Spindles
- High-Speed Precision Drives
- Industrial Pumps and Compressors
- Robotic Arms and Precision Gearboxes
- Medical and Dental Equipment
- Aerospace Actuation Systems
