7015 ACDGC/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Main Dimensions
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Materials
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7015 ACDGC/P4A Bearing Product Overview & Core Advantages
The 7015 ACDGC/P4A is a single-row angular contact ball bearing engineered for applications demanding high precision and moderate preload. Positioned in the P4A tolerance class, it delivers exceptional running accuracy and dimensional stability. Its primary advantage lies in its ability to support combined loads—significant radial loads alongside substantial unidirectional axial loads—thanks to its optimized 25° contact angle. The phenolic cage and universal matchable (SU) designation enable high-speed operation and simplified bearing arrangement design, making it ideal for high-reliability, precision machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7015 | Basic bearing series and size designation (75mm bore, 115mm OD, 20mm width). |
| AC | Angular Contact design, optimized for combined loads. |
| DGC | Designates a Moderate Preload (Class C) and a Phenolic Resin Cage. |
| P4A | Indicates a high-precision tolerance class with enhanced dimensional and running accuracy. |
7015 ACDGC/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The single-row design with a 25° contact angle provides excellent resistance to deflection under combined radial and axial loads. The moderate preload (Class C) eliminates internal clearance, ensuring high system stiffness and precise rotational positioning.
- High-Speed Performance: The lightweight and robust phenolic cage minimizes centrifugal forces, reduces friction, and allows for a high limiting speed of 31,000 rpm. This makes it suitable for high-speed spindles and rotating assemblies.
- Precision & Stability: Manufactured to P4A tolerance standards with tight dimensional controls on the bore, outside diameter, and width. This guarantees consistent, high-accuracy performance in demanding applications.
- Universal Matching (SU): The bearing is universally matchable, allowing for simplified mounting in pairs (back-to-back or face-to-face) to handle bidirectional axial loads or increase overall rigidity without selective assembly.
7015 ACDGC/P4A Bearing Typical Application Areas
The 7015 ACDGC/P4A is ideally suited for high-performance machinery where precision, speed, and rigidity are paramount. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes and Robotic Drives.
- High-Frequency Motors and Spindle Drives.
- Medical Equipment such as dental handpieces and centrifuges.
- Aerospace Actuation Systems and instrumentation.
