7022 ACD/HCP4ALTBTB
Hybrid Ceramic Super Precision Bearings
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7022 ACD/HCP4ALTBTB Bearing Product Overview & Core Advantages
The 7022 ACD/HCP4ALTBTB is a high-precision angular contact ball bearing supplied as a triplex back-to-back (TBT) matched set. Engineered for exceptional performance, this bearing is designed to handle combined radial and axial loads simultaneously. Its P4A super-precision tolerance and light preload (Class B) ensure high running accuracy and rotational stability, making it ideal for applications demanding high rigidity and minimal deflection. The use of ceramic balls and a phenolic cage contributes to its capability for high-speed operation and reduced rotational inertia.
7022 ACD/HCP4ALTBTB Bearing Model Code Explained, Specifications & Naming Convention
- 7022: Basic series number, indicating a 110 mm bore and 170 mm outside diameter.
- ACD: Angular Contact design with a 25° contact angle.
- HC: Denotes the use of Hybrid Ceramic balls (steel rings with ceramic balls).
- P4A: Specifies a super-precision tolerance class, exceeding ABEC 7/ISO P4 standards.
- L: Indicates Light preload (Class B).
- TBT: Identifies the bearing as part of a Triplex Back-to-Back matched set of three bearings.
- B: Specifies a Back-to-Back mounting arrangement for the matched set.
7022 ACD/HCP4ALTBTB Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The triplex back-to-back (TBT) arrangement provides an extremely rigid bearing system, capable of supporting high combined loads and resisting moment loads effectively.
Superior High-Speed Performance: The combination of hybrid ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic resin cage allows for significantly higher limiting speeds and lower operating temperatures compared to all-steel bearings.
Precision and Stability: Manufactured to P4A tolerance and supplied with a light preload, this bearing ensures minimal runout and precise shaft positioning, which is critical for high-accuracy machinery.
Lubrication: The bearing comes pre-lubricated, ensuring immediate operational readiness and protection during the initial run-in period.
7022 ACD/HCP4ALTBTB Bearing Typical Application Areas
This high-performance bearing set is ideally suited for demanding applications in:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- Aerospace & Defense Systems: Gyroscopes, radar platforms, and navigation systems.
- High-Frequency Motors and Spindles: Where extreme rotational accuracy and speed are paramount.
