7205 ACDGC/P4A
7200 & 7300 Series 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
7205 ACDGC/P4A Bearing Product Overview & Core Advantages
The 7205 ACDGC/P4A is a single-row angular contact ball bearing engineered for applications demanding exceptional precision and rigidity. Operating under the stringent P4A tolerance class, it is designed to handle significant combined loads, offering high thrust capacity in one direction alongside radial loads. Its 25° contact angle and Universal Matchable (SU) design enable it to be paired with a second, identical bearing to form a rigid, preloaded duplex set, ideal for high-speed spindles and other precision machinery requiring superior running accuracy and high rigidity.
7205 ACDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
- 7205: Basic designation indicating a medium series bearing with a 25mm bore.
- AC: Angular Contact design with a 25° contact angle.
- D: Signifies a Moderate / Class C preload for enhanced rigidity.
- GC: Indicates specific internal clearance and preload optimization.
- P4A: Denotes an ultra-precision tolerance class superior to ABEC 7, ensuring extremely tight dimensional and running accuracy.
7205 ACDGC/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The angular contact design and Moderate preload work in concert to provide exceptional system stiffness, effectively resisting deflection under complex combined loads. This makes it exceptionally suitable for applications where high rotational accuracy is critical.
High-Speed Performance: The lightweight phenolic resin cage minimizes centrifugal forces, reduces friction, and contributes to the bearing's high limiting speed of 100,500 rpm. This cage material is well-suited for high-speed operation.
Precision Engineering: Manufactured to P4A tolerances with chrome steel rings and balls, this bearing guarantees minimal runout and vibration, which is paramount for the accuracy and surface finish in machine tool spindles.
Universal Matching: As a Universal Matchable (SU) bearing, two 7205 ACDGC/P4A units can be universally mounted in various preload configurations (e.g., back-to-back, face-to-face) to optimize performance for specific application requirements.
7205 ACDGC/P4A Bearing Typical Application Areas
This high-precision bearing is ideally suited for demanding applications across various industries, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, high-frequency motor spindles.
- Robotics: High-accuracy joints and rotary actuators.
- Medical Equipment: Dental handpieces and surgical drill spindles.
