71922 ACD/HCP4ATBTB
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
71922 ACD/HCP4ATBTB Bearing Product Overview & Core Advantages
The 71922 ACD/HCP4ATBTB is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This matched triplex set in a back-to-back (TBT) arrangement is engineered to handle combined loads with high rigidity and superior running accuracy. Its construction with a P4A tolerance class and ceramic balls makes it ideal for high-speed operations and applications where thermal stability is critical. The pre-lubricated and open design ensures immediate operational readiness and is optimized for a wide temperature range.
71922 ACD/HCP4ATBTB Bearing Model Code Explained, Specifications & Naming Convention
- 71922: Basic bearing series and size designation (Bore: 110mm, OD: 150mm, Width: 60mm).
- ACD: Angular Contact design with a 25° contact angle.
- H: Indicates a matched set of bearings.
- C: Specifies the internal clearance/Preload - in this case, Light Preload (Class B).
- P4A: Denotes a high-precision tolerance class exceeding ABEC 7/ISO P4 standards.
- TBT: Specifies the matched arrangement as Triplex Back-to-Back (a set of three bearings).
71922 ACD/HCP4ATBTB Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The triplex back-to-back (TBT) arrangement creates a highly rigid bearing system capable of supporting significant combined radial and axial loads from both directions. The 25° contact angle is optimized for axial load carrying capacity.
High-Speed and Thermal Performance: The use of ceramic (Si3N4) balls significantly reduces centrifugal forces, lowers operating temperature, and enables a high limiting speed. The phenolic resin cage is lightweight and ensures stable operation at high RPMs.
Ultra-Precision: Manufactured to a P4A tolerance class, this bearing provides extremely tight dimensional and running accuracy, minimizing vibration and ensuring superior performance in precision machinery.
Pre-Lubricated for Immediate Use: The bearing is supplied with lubricant, facilitating easy installation and immediate operation within its specified temperature range of -30°C to 110°C.
71922 ACD/HCP4ATBTB Bearing Typical Application Areas
This high-precision, high-speed bearing set is ideally suited for advanced applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Articulated arms and high-accuracy joints.
- Aerospace Actuation Systems: Control surface mechanisms and flight-critical components.
- High-Frequency Motors and Spindles: Where minimal runout and thermal growth are paramount.
