71919 CD/P4ADBA

The model number 71919 CD/P4ADBA provides detailed technical specifications:

• 71919: Basic series designation, indicating a high-precision angular contact bearing with a 95 mm bore, 130 mm OD, and 36 mm width.
• C: Denotes a 15° contact angle, optimized for high-speed operation and moderate axial load capacity.
• D: Indicates the bearing is part of a duplex pair.
• P4A: The tolerance class, signifying very high precision levels for both dimensional and running accuracy.
• DB: Specifies the matched arrangement as Back-to-Back. This configuration provides high moment rigidity and excellent stability.
• A: Indicates an Extra Light preload within the matched set, minimizing friction and heat generation while ensuring rigidity.

The design of the 71919 CD/P4ADBA delivers distinct performance advantages:

• High Rigidity & Stability: The Back-to-Back (DB) duplex arrangement creates a wide, rigid support system that effectively resists moment loads and shaft misalignment, ensuring precise shaft positioning.
• Superior Load Capacity: The bearing is engineered to handle combined radial and axial loads simultaneously. The 15° contact angle provides a balanced load-carrying capability.
• High-Speed Capability: The lightweight phenolic resin cage reduces centrifugal forces, while the precision-ground chrome steel components and optimized internal geometry contribute to a high limiting speed of 16,000 rpm.
• Precision Performance: Manufactured to P4A tolerance class, this bearing guarantees minimal runout and vibration, which is critical for applications requiring smooth, quiet operation at high speeds.

This high-precision duplex bearing is ideally suited for demanding applications in:

• Machine Tool Spindles: High-speed milling, grinding, and turning centers.
• Precision Gearboxes and Robotic Drives.
• High-Frequency Motors and Spindles.
• Medical Equipment and Analytical Instruments.
• Aerospace Actuation Systems.