71922 ACDGB/P4A
71900 Series Super Precision Angular Contact Ball 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 ACDGB/P4A Bearing Product Overview & Core Advantages
The 71922 ACDGB/P4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This single bearing features a 25° contact angle and Universal Matchable (SU) design, allowing it to be paired with other bearings to form a preloaded set for superior performance. Its core advantages include the ability to accommodate combined radial and axial loads simultaneously, outstanding operational stability at high speeds (up to 10,000 rpm), and exceptional dimensional precision ensured by its P4A tolerance class.
71922 ACDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
- 71922: Basic designation indicating a high-precision angular contact bearing series with a 110 mm bore and 150 mm outside diameter.
- AC: Angular Contact design with a 25° contact angle.
- D: Represents an optimized internal design for high stiffness and load capacity.
- GB: Indicates a Light preload (Class B), providing optimal rigidity and minimal deflection under operational loads.
- P4A: Denotes an ultra-precision tolerance class superior to ABEC 7, ensuring extremely tight dimensional control for runout and bore/OD tolerances.
71922 ACDGB/P4A Bearing Structural Features & Performance Benefits
This bearing's performance is derived from its sophisticated construction. The phenolic resin cage ensures smooth operation at high rotational speeds with minimal friction and excellent guidance. The use of chrome steel for both rings and balls provides high durability and fatigue resistance. The 25° contact angle is optimized to handle significant axial loads in one direction while supporting substantial radial loads. The Universal Matchable (SU) feature allows for simplified mounting of preloaded bearing sets, directly contributing to high system rigidity and reduced vibration in the final application. The open seal type facilitates custom lubrication schemes for specialized operational environments.
71922 ACDGB/P4A Bearing Typical Application Areas
The 71922 ACDGB/P4A is ideally suited for high-performance machinery where precision and speed are critical. Typical applications include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Where extreme accuracy and minimal runout are required.
- High-Frequency Motors and Spindle Drives.
- Medical Equipment such as dental handpieces and imaging device rotors.
- Aerospace Actuation Systems and instrumentation.
