7206 CDGC/P4A
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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7206 CDGC/P4A Bearing Product Overview & Core Advantages
The 7206 CDGC/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. Engineered to a P4A tolerance class, it offers superior running accuracy and dimensional stability. This bearing is universally matchable (SU), allowing for flexible mounting configurations in sets to achieve optimal preload and system stiffness. Its 15° contact angle is optimized to handle significant combined loads—both radial and axial—making it an ideal choice for high-speed, high-rigidity spindles and precision machinery.
7206 CDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
- 7206: Basic bearing series, indicating a 30mm bore, 62mm OD, and 16mm width.
- C: Denotes a 15° contact angle.
- DG: Stands for Universal Matchable (SU), meaning bearings can be paired in any combination to achieve the desired preload.
- C: Indicates a Moderate Preload (Class C).
- P4A: Specifies the tolerance class, representing very high precision levels for both dimensional and running accuracy.
7206 CDGC/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: Manufactured to P4A super-precision standards, this bearing ensures minimal runout and vibration, which is critical for maintaining machining accuracy. The phenolic resin cage contributes to smooth operation at high speeds with reduced friction.
Superior Load Capacity: The angular contact design with a 15° contact angle enables the bearing to efficiently support combined radial and axial loads. With a dynamic load rating of 5445 lbf and a static load rating of 3600 lbf, it offers reliable performance under demanding conditions.
High-Speed Performance: The lightweight phenolic cage and optimized internal geometry allow for a high limiting speed of 71,500 rpm, making it suitable for high-speed spindle applications.
Pre-Lubricated and Open Design: The bearing comes lubricated and features an open seal type, which is ideal for systems with centralized lubrication, ensuring consistent performance within a temperature range of -30°C to 110°C.
7206 CDGC/P4A Bearing Typical Application Areas
- Machine Tool Spindles: For CNC machining centers, grinders, and lathes requiring high rigidity and running accuracy.
- Precision Instrumentation: Used in measuring devices and high-accuracy rotary tables.
- High-Speed Drives: Applications in pumps, compressors, and other industrial machinery where speed and precision are critical.
