S7020 ACDTP/P4B
Sealed Super Precision Angular Contact Ball Bearings
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S7020 ACDTP/P4B Bearing Product Overview & Core Advantages
The S7020 ACDTP/P4B is a high-precision, single-row angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Engineered to a P4 (ABEC-7) tolerance class, it is preloaded and optimized to handle significant combined loads, including high radial loads and thrust loads in one direction. Its compact design, featuring a 100 mm bore and 150 mm outside diameter, makes it an ideal solution for high-speed spindles and other precision machinery where space is at a premium and high rigidity is paramount.
S7020 ACDTP/P4B Bearing Model Code Explained, Specifications & Naming Convention
- S7020: Basic series designation for a 100mm bore angular contact bearing.
- AC: Signifies Angular Contact design with a 25° contact angle.
- DT: Indicates a Matched Set (Duplex Tandem) arrangement, though this specific unit is supplied as a single, preloaded bearing.
- P: Denotes a Light Preload for enhanced stiffness and reduced runout.
- P4B: Specifies the tolerance class P4 (ABEC-7) with enhanced running accuracy requirements.
S7020 ACDTP/P4B Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The 25° contact angle and phenolic resin cage contribute to superior stiffness, enabling the bearing to effectively support heavy combined radial and axial loads.
High-Speed Performance: The lightweight phenolic cage is engineered for stability at high rotational speeds, supporting a limiting speed of 8,000 rpm. This makes it a true high-speed bearing.
Precision and Stability: Manufactured to P4 precision tolerances, the bearing ensures minimal vibration and precise shaft positioning, which is critical for applications like machine tool spindles.
Ready-to-Use: The bearing is pre-lubricated and sealed, ensuring optimal performance from the moment of installation and requiring no initial maintenance.
S7020 ACDTP/P4B Bearing Typical Application Areas
The S7020 ACDTP/P4B is ideally suited for high-performance applications across various industries, including:
- Machine Tool Spindles (milling, grinding, and lathe spindles)
- High-Frequency Motors
- Precision Gearboxes
- Industrial Pumps and Compressors
- Robotics and Automation Equipment
