7005 ACD/P4ADGC
7000 Series Super Precision Angular Contact Ball Bearings
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7005 ACD/P4ADGC Bearing Product Overview & Core Advantages
The 7005 ACD/P4ADGC is a precision angular contact ball bearing designed for high-performance applications requiring exceptional rotational accuracy and rigidity. Engineered to a P4A tolerance class, it delivers superior running precision. Its defining feature is the ability to accommodate combined loads—simultaneously handling significant radial and axial forces. The universal matchable (SU) design allows two bearings to be paired in a back-to-back or face-to-face arrangement, providing excellent operational stability and system rigidity. Pre-lubricated and featuring a phenolic cage, this bearing is optimized for high-speed operation up to 85,000 rpm, making it an ideal choice for demanding, high-reliability machinery.
7005 ACD/P4ADGC Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance & Advantage |
|---|---|---|
| ACD | 25° Contact Angle | Optimized for carrying substantial axial loads in addition to radial loads. |
| P4A | High Precision Tolerance Class | Guarantees extremely tight dimensional and running accuracy for precision applications. |
| DGC | Universal Matchable (SU), Moderate Preload (Class C) | Enables flexible bearing arrangements and provides controlled internal clearance for optimal system rigidity. |
7005 ACD/P4ADGC Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The angular contact design with a 25° contact angle and universal matching capability allows the bearing to withstand high combined loads, ensuring stable and rigid support for spindles and shafts.
- Superior High-Speed Performance: The lightweight phenolic cage minimizes centrifugal forces, reduces friction, and enables reliable operation at the high limiting speed of 85,000 rpm.
- Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls on the bore diameter (25 mm), outside diameter (47 mm), and width (24 mm), ensuring consistent, high-accuracy performance.
- Optimized for Demanding Environments: The chrome steel construction and pre-lubrication provide durability and consistent performance within a wide temperature range of -30°C to 110°C.
7005 ACD/P4ADGC Bearing Typical Application Areas
The 7005 ACD/P4ADGC is specified in high-precision, high-speed machinery across various industries, including:
- Machine Tool Spindles: For CNC machining centers, grinding spindles, and lathes requiring high rigidity and running accuracy.
- High-Frequency Motors and Spindles: Used in electric motors and direct-drive systems where high-speed operation is critical.
- Precision Instrumentation: Found in measuring devices, optical scanners, and laboratory equipment.
- Industrial Pumps and Compressors: Suitable for applications demanding reliable performance under combined radial and axial loads.
