S7022 ACD/P4ATBTC
Sealed Super Precision Angular Contact Ball Bearings
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S7022 ACD/P4ATBTC Bearing Product Overview & Core Advantages
The S7022 ACD/P4ATBTC is a high-precision metric angular contact ball bearing configured in a Triplex Back-to-Back (TBT) matched set. This arrangement is engineered to deliver exceptional system rigidity and stability, making it ideal for applications requiring the highest levels of accuracy. The set is preloaded to Moderate / Class C, ensuring consistent performance under combined radial and axial loads. With a P4A tolerance class and sealed construction, this bearing offers reliable, long-term operation in demanding, high-speed environments.
S7022 ACD/P4ATBTC Bearing Model Code Explained, Specifications & Naming Convention
- S7022: Basic bearing series, indicating a 110 mm bore, 170 mm OD, and 84 mm width.
- ACD: Angular Contact design with a 25° contact angle.
- P4A: Denotes an ultra-precision tolerance class exceeding ABEC 7 standards, ensuring minimal runout and vibration.
- TB: Indicates the bearing is part of a Triplex Back-to-Back (TBT) matched set.
- T: Specifies the use of a Phenolic (textile laminate) cage, which is lightweight and suitable for high-speed operation.
- BTC: Confirms the set is preloaded to Moderate / Class C for optimal stiffness.
S7022 ACD/P4ATBTC Bearing Structural Features & Performance Benefits
Superior Rigidity and Load Capacity: The triplex back-to-back arrangement of three bearings creates an extremely rigid support system, capable of handling high moment loads and combined loads effectively. The 25° contact angle is optimized for sustaining significant axial loads in both directions.
High-Speed Performance: The lightweight phenolic cage (T) reduces centrifugal forces, while the grease lubrication and sealed design work in concert to support a high limiting speed of 16,000 rpm.
Precision and Longevity: Manufactured to a P4A tolerance class with tight dimensional tolerances on the bore, OD, and width, this bearing ensures minimal vibration and precise shaft positioning. The sealed construction protects the high-grade chrome steel components from contaminants, enhancing service life.
S7022 ACD/P4ATBTC Bearing Typical Application Areas
This high-rigidity, precision bearing set is ideally suited for the most demanding applications, including:
- Machine Tool Spindles (e.g., for milling, grinding, and turning centers)
- High-frequency Spindles and Precision Axles
- Robotic Rotary Joints and Articulations
- Advanced Medical and Laboratory Equipment
