7007 ACB/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7007 ACB/P4A Bearing Product Overview & Core Advantages
The 7007 ACB/P4A is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Engineered to a P4 (ABEC-7) tolerance class, this bearing is optimized to handle significant combined loads (radial and axial) in one direction. Its phenolic resin cage and preload availability contribute to superior high-speed performance and stability, making it an ideal choice for machine tool spindles and other demanding equipment.
Model Code Breakdown
- 7007: Basic series designation, indicating a metric angular contact bearing with a 35mm bore and 62mm outside diameter.
- ACB: Signifies a specific contact angle of 25° and optimized internal design for high rigidity and load capacity.
- P4A: Denotes a P4 (ABEC-7) tolerance class, ensuring extremely tight dimensional and running accuracy for precision applications.
7007 ACB/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The 25° contact angle and robust internal geometry enable the bearing to support substantial combined radial and axial loads simultaneously, providing stable and precise shaft support.
High-Speed Performance: The lightweight phenolic resin cage ensures low friction and excellent dimensional stability at high speeds, contributing to a high limiting speed of 43,000 rpm.
Precision Engineering: Manufactured to P4 (ABEC-7) tolerance class, this bearing guarantees minimal runout and vibration, which is critical for maintaining accuracy in high-speed spindles.
Preload Availability: The option for preload allows for enhanced system stiffness and further refinement of rotational accuracy, reducing deflection under load.
7007 ACB/P4A Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for applications requiring high speed, accuracy, and rigidity, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Equipment
- Industrial Pumps and Compressors
