7224 ACDGA/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
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7224 ACDGA/P4A Bearing Product Overview & Core Advantages
The 7224 ACDGA/P4A is a single row angular contact ball bearing designed for applications demanding the highest levels of precision and performance. Manufactured to the stringent P4A tolerance class, this bearing is engineered to handle significant combined loads, excelling under high axial loads in one direction. Its extra light preload (Class A) ensures minimal deflection and smooth, quiet operation, making it ideal for high-speed spindles and other precision machinery where accuracy and rigidity are paramount. The bearing is universally matchable (SU), allowing for precise axial clearance control when mounted in pairs or sets.
7224 ACDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 7224 | Bearing Series | Indicates a specific design series optimized for high-speed and high-precision performance. |
| AC | Angular Contact | Designed to support combined radial and axial loads. |
| D | High Contact Angle (25°) | A 25° contact angle provides superior axial load capacity. |
| GA | Light Preload / Universal Matchable | The bearing is supplied with a light preload and is universally matchable (SU) for simplified mounting in sets. |
| P4A | Tolerance Class | Denotes an extremely high precision grade with very tight dimensional and running accuracy tolerances. |
7224 ACDGA/P4A Bearing Structural Features & Performance Benefits
The performance of the 7224 ACDGA/P4A is a direct result of its meticulous design and material selection:
- High Rigidity and Precision: The combination of the P4A tolerance class and extra light preload ensures exceptional rotational accuracy and system stiffness, critical for minimizing runout in high-speed applications.
- Superior Load Capacity: The 25° contact angle and robust construction using chrome steel rings and balls provide a high dynamic load rating (42750 lbf), enabling it to handle demanding combined loads effectively.
- Optimized High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, contributing to a high limiting speed of 10,000 rpm. The open design allows for efficient lubrication management.
- Universal Matching Capability (SU): This feature allows for simplified arrangement in duplex sets (back-to-back or face-to-face) to accommodate complex load scenarios without the need for selective mounting.
7224 ACDGA/P4A Bearing Typical Application Areas
The 7224 ACDGA/P4A is the bearing of choice for high-performance machinery where precision and speed are non-negotiable. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, high-frequency motor spindles.
- Robotics: High-accuracy rotary joints and arms.
- Aerospace and Defense: Gyroscopes, radar systems, and other sensitive instrumentation.
