7204 CDGA/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
7204 CDGA/P4A Bearing Product Overview & Core Advantages
The 7204 CDGA/P4A is a single-row angular contact ball bearing engineered for applications demanding ultra-high precision and exceptional running accuracy. Manufactured to the stringent P4A tolerance class, it is designed to handle combined loads, primarily thrust loads in one direction, while offering superior high-speed performance. Its extra light preload (Class A) minimizes deflection and ensures smooth, quiet operation, making it ideal for high-precision spindles and other critical machinery where rotational accuracy is paramount. The bearing is universally matchable (SU), allowing for precise axial play adjustment when mounted with other bearings.
Model Code Breakdown
- 7204: Basic series designation for a single-row angular contact ball bearing with a 20mm bore and 47mm outside diameter.
- C: Denotes a 15° contact angle, optimized for high-speed applications requiring high rigidity.
- DG: Indicates the bearing is Universal Matchable (SU). Two bearings can be mounted in a face-to-face or back-to-back arrangement to adjust preload.
- A: Signifies an Extra Light Preload (Class A), which reduces runout and vibration for enhanced precision.
- P4A: Specifies the tolerance class, exceeding ABEC 7 (RBEC 5) standards for superior dimensional and running accuracy.
7204 CDGA/P4A Bearing Structural Features & Performance Benefits
High Precision & Rigidity: Manufactured to P4A tolerance standards with an extra light preload, this bearing provides exceptional dimensional stability and minimizes axial and radial play, resulting in superior system rigidity and rotational accuracy.
High-Speed Capability: The 15° contact angle and phenolic resin cage are optimized for high-speed operation, contributing to a high limiting speed of 100,500 rpm. The lightweight cage reduces centrifugal forces and ensures reliable performance at high rotational velocities.
Superior Load Capacity: The optimized internal geometry and high-grade chrome steel construction enable a dynamic load rating of 2678 lbf and a static load rating of 1316 lbf, providing reliable performance under demanding operational conditions.
Universal Matching Design: The Universal Matchable (SU) feature allows for precise arrangement in pairs (DB or DF) to manage complex load scenarios and fine-tune preload, maximizing bearing set performance and service life.
7204 CDGA/P4A Bearing Typical Application Areas
The 7204 CDGA/P4A is ideally suited for high-precision, high-speed applications, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Medical and Dental Equipment
- Aerospace Instrumentation
