7017 CB/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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7017 CB/P4A Bearing Product Overview & Core Advantages
The 7017 CB/P4A is a single-row angular contact ball bearing designed for applications demanding high precision and excellent rotational accuracy. Engineered to accommodate combined loads (simultaneous radial and axial loads), it features a 15° contact angle optimized for high-speed operation. Manufactured to P4 (ABEC-7) tolerance class, this bearing delivers superior running accuracy and is preloaded for enhanced rigidity and minimal axial play, making it ideal for high-performance machinery where positional stability is critical.
7017 CB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7017 | Standard bearing series designation indicating metric dimensions: 85mm bore, 130mm OD, 22mm width. |
| CB | Specific internal design and contact angle (15°) providing optimized load distribution. |
| P4A | Indicates P4 (ABEC-7) tolerance class with additional dimensional and running accuracy requirements for high-precision applications. |
7017 CB/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Preload: The bearing is supplied with preload, which increases system stiffness, reduces deflection under load, and ensures precise shaft positioning.
- Superior Load Capacity: The 15° contact angle and robust construction enable efficient handling of combined radial and axial loads.
- High-Speed Capability: The lightweight phenolic resin cage minimizes centrifugal forces, reduces friction, and contributes to a high limiting speed of 20,000 rpm.
- Precision Performance: Manufactured to P4 tolerance with tight dimensional controls for exceptional running accuracy and low vibration in demanding applications.
- Material Quality: Components made from chrome steel provide high hardness, wear resistance, and long service life.
7017 CB/P4A Bearing Typical Application Areas
The 7017 CB/P4A is ideally suited for high-speed and high-precision machinery, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Aerospace Control Systems
