7206 CD/P4ATBTD
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7206 CD/P4ATBTD Bearing Product Overview & Core Advantages
The 7206 CD/P4ATBTD is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This triplex matched set in a back-to-back (TBT) arrangement is preloaded to Heavy / Class D, delivering maximum system stiffness and runout control. Its configuration is optimized to handle combined loads, including significant radial and thrust forces, making it ideal for high-speed, high-rigidity spindles and precision machinery where positional accuracy is paramount.
Model Code Breakdown
- 7206: Basic series designation for a 30mm bore, 62mm OD angular contact ball bearing.
- C: Denotes a 15° contact angle, optimized for high-speed operation and high radial load capacity.
- D: Indicates the heavy preload (Class D) for superior rigidity.
- P4A: Specifies the tolerance class, exceeding ABEC 7/ISO P4 precision, ensuring extremely tight dimensional and running accuracy.
- TBT: Identifies the bearing as part of a Triplex Back-to-Back matched set of three bearings.
7206 CD/P4ATBTD Bearing Structural Features & Performance Benefits
High Rigidity & Stability: The triplex back-to-back arrangement creates an extremely rigid bearing system that effectively resists moment loads and minimizes shaft deflection under heavy cutting or operational forces.
Precision & High-Speed Capability: Manufactured to P4A tolerance class and featuring a lightweight, robust phenolic cage, this bearing achieves a high limiting speed of 71,500 rpm. The 15° contact angle provides an excellent balance for high-speed radial and thrust load support.
Superior Load Capacity: With a high dynamic load rating of 11,858 lbf and static load rating of 10,688 lbf, the bearing is engineered for long service life under demanding combined load conditions.
Optimized Material Selection: Constructed from chrome steel for both rings and balls, the bearing offers high fatigue life and wear resistance. The phenolic cage ensures smooth operation at high speeds.
7206 CD/P4ATBTD Bearing Typical Application Areas
This bearing is specifically engineered for high-performance applications where ultimate precision and stiffness are non-negotiable. Key industries and machinery include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC milling spindles.
- Precision Rotary Systems: High-frequency milling and drilling heads.
- Industrial Pumps & Compressors: For applications requiring high axial and radial stiffness.
