7207 ACD/P4ADGC
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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7207 ACD/P4ADGC Bearing Product Overview & Core Advantages
The 7207 ACD/P4ADGC is a precision double row angular contact ball bearing engineered for applications requiring exceptional accuracy and rigidity. This metric bearing features a 25° contact angle and is supplied with a Moderate (Class C) preload, making it ideal for handling combined radial and axial loads simultaneously. Its universal matchable (SU) design allows for flexible mounting arrangements in pairs. Constructed from chrome steel and featuring a phenolic cage, it delivers high-speed capability and reliable performance in demanding precision machinery.
7207 ACD/P4ADGC Bearing Model Code Explained, Specifications & Naming Convention
- 7207: Basic designation indicating a double row angular contact ball bearing with 35mm bore, 72mm OD.
- ACD: Angular Contact, Double row design with a 25° contact angle.
- P4A: High Precision Tolerance Class, exceeding ABEC 7/ISO P4 standards, ensuring minimal runout and superior rotational accuracy.
- DGC: Indicates a Moderate Preload (Class C) applied to the bearing, enhancing system rigidity and reducing deflection under load.
7207 ACD/P4ADGC Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row design provides superior radial and axial stiffness compared to single row bearings, enabling it to withstand significant combined loads. The specified preload further increases system rigidity.
Precision Performance: Manufactured to P4A tolerance class, this bearing guarantees extremely tight dimensional and running accuracy, which is critical for applications like high-speed spindles.
Optimized High-Speed Operation: The lightweight phenolic resin cage ensures stable operation and reduced centrifugal forces, contributing to a high limiting speed of 41,000 rpm. The open design allows for efficient lubrication management.
Universal Matching: As an SU universal matchable bearing, two identical bearings can be mounted in various arrangements (back-to-back, face-to-face, or tandem) to suit specific application needs for load support and moment stiffness.
7207 ACD/P4ADGC Bearing Typical Application Areas
The 7207 ACD/P4ADGC is ideally suited for high-precision, high-speed machinery where rigidity and accuracy are paramount. Key applications include:
- Machine Tool Spindles
- Precision Grinding Spindles
- High-Frequency Motors
- Industrial Pumps and Compressors
- Medical and Dental Equipment Spindles
- Aerospace Positioning Systems
