71922 CD/P4A

• 71922: Basic designation indicating a single row angular contact ball bearing with a 110 mm bore and 150 mm outside diameter.
• CD: Indicates an optimized internal design with a 15° contact angle and increased ball complement, enhancing load capacity and rigidity.
• P4: Denotes the tolerance class, equivalent to ABEC-7, signifying extremely tight dimensional and running accuracy for superior performance.
• A: Signifies that the bearing is supplied with a specific preload to minimize axial and radial play, ensuring high system stiffness and precise shaft positioning.

High Precision and Rigidity: Manufactured to a P4 tolerance class, this bearing ensures minimal runout and vibration, which is critical for applications like precision spindles. The phenolic resin cage offers excellent dimensional stability and low friction, contributing to smooth operation at high speeds (up to 13,000 rpm).

Superior Load Capacity: The CD design incorporates a larger number of larger balls (28 balls, 12.7 mm diameter), significantly boosting the radial dynamic load rating (14,040 lbf) and static load rating (16,200 lbf), enabling it to handle demanding combined loads.

Optimized for Performance: The 15° contact angle is ideal for applications requiring high-speed operation with moderate axial loads. The bearing is pre-lubricated and operates effectively within a temperature range of -30°C to 110°C, ensuring reliable performance in various operating conditions.

This high-precision angular contact bearing is predominantly used in:

• Machine Tool Spindles (milling, grinding, and turning centers)
• High-Frequency Motors and Spindles
• Precision Gearboxes
• Industrial Pumps and Compressors
• Robotics and Automation Equipment