S7204 CDGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S7204 CDGA/P4A Bearing Product Overview & Core Advantages
The S7204 CDGA/P4A is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. This sealed bearing features an extra light preload (Class A) and is manufactured to P4A tolerance class, ensuring superior running accuracy and minimal vibration. Its primary advantage lies in its ability to handle combined loads (radial and axial) simultaneously with high precision, making it ideal for high-speed spindles and other precision machinery where rigidity and rotational accuracy are critical.
S7204 CDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
- S7: High-precision bearing series with optimized internal design for superior performance.
- 204: Standard dimension series code (20mm bore, 47mm OD, 14mm width).
- CD: Contact angle of 15° and universal matching designation. Two bearings are supplied as a universally matchable (SU) set.
- GA: Indicates a specific internal clearance and preload combination. G denotes a light preload, and A signifies the extra light preload (Class A) applied to this bearing set.
- P4A: The tolerance class, specifying extremely tight dimensional and running accuracy tolerances superior to ABEC 7.
S7204 CDGA/P4A Bearing Structural Features & Performance Benefits
High Precision and Rigidity: Manufactured to P4A tolerance class with an extra light preload, this bearing provides excellent rotational accuracy, minimizes system deflection, and ensures stable performance under load.
Optimized for Combined Loads: The 15° contact angle is engineered to efficiently support combined radial and axial loads, a common requirement in precision applications.
High-Speed Capability: The lightweight phenolic cage and grease lubrication contribute to lower friction and allow for a high limiting speed of 75,000 rpm, suitable for demanding high-speed operations.
Sealed and Pre-Lubricated: The integrated seals protect against contamination, and the factory-applied grease offers a wide temperature range from -30°C to 110°C, providing long-term, maintenance-free operation.
S7204 CDGA/P4A Bearing Typical Application Areas
The S7204 CDGA/P4A is ideally suited for high-performance applications including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- High-Speed Pumps and Compressors
- Advanced Robotics and Automation Equipment
