71922 CE/P4ADBB
71900 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
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71922 CE/P4ADBB Bearing Product Overview & Core Advantages
The 71922 CE/P4ADBB is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This duplex back-to-back (DB) arrangement provides superior stiffness and can accommodate combined radial and axial loads from both directions. Manufactured to P4A tolerance class, it ensures high running accuracy and is preloaded for optimal performance in high-speed, high-precision machinery.
71922 CE/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
- 71922: Standard bearing designation (110mm bore, 150mm OD, 40mm width)
- C: 15° contact angle, optimized for high-speed operation
- E: High-capacity internal design with optimized ball size and quantity
- P4A: High precision tolerance class (exceeds ABEC 7/ISO P4)
- DB: Duplex Back-to-Back arrangement for high rigidity and moment load capacity
- B: Light preload (Class B) for reduced deflection and vibration
71922 CE/P4ADBB Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back configuration creates a rigid bearing system capable of withstanding heavy combined loads and moment loads, making it ideal for applications requiring minimal deflection.
Precision Performance: Manufactured to P4A tolerance class with a 15° contact angle, this bearing delivers exceptional running accuracy and low noise levels, essential for precision spindles and machinery.
High-Speed Capability: The phenolic resin cage provides excellent strength-to-weight ratio, reducing centrifugal forces and enabling higher limiting speeds (16,250 rpm). The optimized internal geometry further enhances high-speed performance.
Superior Material Quality: Constructed from chrome steel for both rings and balls, ensuring high durability, wear resistance, and long service life under demanding operating conditions.
71922 CE/P4ADBB Bearing Typical Application Areas
The 71922 CE/P4ADBB is specifically engineered for high-performance applications including:
- Machine Tool Spindles - High-speed milling, grinding, and turning centers
- Precision Spindles - PCB drilling, semiconductor manufacturing equipment
- High-Speed Motors - Industrial motors and generators requiring precise rotation
- Medical Equipment - Dental handpieces, surgical tools, and imaging devices
- Aerospace Components - Guidance systems, flight control mechanisms
