7015 ACD/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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7015 ACD/P4A Bearing Product Overview & Core Advantages
The 7015 ACD/P4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This single-row bearing is manufactured to P4 (ABEC-7) tolerance class, ensuring minimal runout and vibration. Its key advantage lies in its ability to accommodate high combined loads, efficiently handling both radial and substantial axial loads in one direction due to its specific 25° contact angle. Preloaded and lubricated from the factory, it is ready for immediate installation, offering high reliability and performance in high-speed and high-rigidity scenarios.
7015 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| 7015 | Standard bearing series designation, indicating a 75 mm bore, 115 mm OD, and 20 mm width. |
| AC | Angular Contact design with a 25° contact angle. |
| D | Signifies a high rigid internal design and construction. |
| P4A | Indicates a P4 (ABEC-7) tolerance class and specific dimensional/geometrical accuracy requirements for the assembled bearing. |
7015 ACD/P4A Bearing Structural Features & Performance Benefits
Optimized Internal Geometry: The 25° contact angle and precision-ground raceways are engineered to provide superior axial load capacity and high rigidity, minimizing deflection under load.
High-Speed Phenolic Cage: The lightweight and robust phenolic resin cage ensures excellent dimensional stability and low friction, contributing to the bearing's high limiting speed of 16,000 rpm.
Precision & Preload: Manufactured to P4 precision class and supplied with a preload, this bearing guarantees smooth, quiet operation with enhanced rotational accuracy and system stiffness from the moment of installation.
Superior Material & Lubrication: Constructed from chrome steel for both rings and balls, it offers high durability and fatigue resistance. The bearing is pre-lubricated for immediate operation within its specified temperature range.
7015 ACD/P4A Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance machinery where accuracy, speed, and rigidity are paramount. Typical applications include:
- Machine Tool Spindles (High-speed milling, grinding)
- Precision Gearboxes
- High-Frequency Motors and Spindles
- Medical and Laboratory Equipment
- Robotic Arms and Precision Actuators
