7020 ACD/P4ADGC
7000 Series Super Precision Angular Contact Ball Bearings
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7020 ACD/P4ADGC Bearing Product Overview & Core Advantages
The 7020 ACD/P4ADGC is a precision angular contact ball bearing designed for applications demanding high rotational accuracy and rigidity. Engineered to a P4A tolerance class, it is capable of simultaneously supporting substantial combined loads (radial and axial) in a compact design. Its Universal Matchable (SU) designation allows for flexible mounting in pairs to achieve optimal preload and system stiffness. The combination of a phenolic cage and a 25° contact angle facilitates high-speed operation, making it an ideal solution for high-performance machinery where reliability and precision are paramount.
7020 ACD/P4ADGC Bearing Model Code Explained, Specifications & Naming Convention
- 7020: Basic designation indicating a 100 mm bore and 150 mm outside diameter.
- A: Denotes a 25° contact angle, optimized for high axial load capacity.
- C: Indicates a Moderate Preload / Class C.
- D: Specifies a Universal Matchable (SU) bearing, designed for paired mounting.
- P4A: The tolerance class, signifying very high dimensional and running accuracy.
- DGC: Indicates the bearing is supplied lubricated from the factory.
7020 ACD/P4ADGC Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The angular contact design and Universal Matchable (SU) pairing capability enable the bearing to provide high system rigidity and support significant combined loads. The 25° contact angle is specifically engineered to handle high axial loads efficiently.
High-Speed Performance: The lightweight phenolic cage ensures stability and reduces centrifugal forces, contributing to a high limiting speed of 16,000 rpm. This makes the bearing suitable for high-speed applications.
Precision Engineering: Manufactured to a P4A tolerance class, this bearing guarantees exceptional running accuracy and minimal vibration, which is critical for precision machinery.
Optimized Internal Geometry: With 22 high-grade chrome steel balls of 15.875 mm diameter, the bearing is designed for smooth operation and long service life under demanding conditions.
7020 ACD/P4ADGC Bearing Typical Application Areas
The 7020 ACD/P4ADGC is ideally suited for high-precision and high-speed rotational systems, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Equipment
- Industrial Pumps and Compressors
- Aerospace Actuation Systems
