7024 CD/P4ADBC
7000 Series Super Precision Angular Contact Ball Bearings
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Main Dimensions
Ball & Washer Dimensions
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7024 CD/P4ADBC Bearing Product Overview & Core Advantages
The 7024 CD/P4ADBC is a precision duplex angular contact ball bearing arranged in a back-to-back (DB) configuration. Engineered for applications demanding exceptional rotational accuracy and rigidity, this pre-matched set is designed to handle combined loads—significant radial loads and bidirectional axial loads simultaneously. Its P4A tolerance class ensures ultra-precise running accuracy, making it ideal for high-speed, high-reliability spindles and precision machinery. The moderate preload (Class C) optimizes stiffness and minimizes deflection under operational stresses.
7024 CD/P4ADBC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7024 | Basic bearing series, defining the standard dimensions: 120mm bore, 180mm OD, 56mm width. |
| CD | Indicates a duplex pair in a back-to-back (DB) arrangement. This configuration provides high moment rigidity and excellent stability. |
| P4A | Specifies the tolerance class, denoting very high precision for both dimensional and running accuracy, superior to ABEC-7/P4 standards. |
| DBC | Confirms the duplex back-to-back configuration and the application of a moderate preload (Class C) at the factory. |
7024 CD/P4ADBC Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back design creates a wide, rigid support system that effectively resists moment loads and shaft deflection. With a 15° contact angle and a high ball count (22 balls), the bearing set delivers superior performance under combined radial and axial loads.
Precision & Speed Performance: The phenolic resin cage is lightweight and robust, contributing to smooth operation at high speeds with low centrifugal forces. The P4A precision and optimized internal geometry enable a high limiting speed of 16,000 rpm.
Material & Durability: Manufactured from high-grade chrome steel for both rings and balls, this bearing offers excellent wear resistance and long service life. The set is pre-lubricated for immediate operation within a temperature range of -30°C to 110°C.
7024 CD/P4ADBC Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications where precision, speed, and rigidity are paramount. Key industries and machinery include:
- Machine Tool Spindles: For CNC machining centers, grinding spindles, and milling heads.
- High-Speed Motors & Spindles: In applications requiring precise rotational accuracy at high RPM.
- Precision Gearboxes & Drive Systems: Where high rigidity and load capacity are critical.
- Industrial Pumps & Compressors: For handling significant axial and radial forces efficiently.
