7017 CE/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 CE/P4A Bearing Product Overview & Core Advantages
The 7017 CE/P4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. Designed to accommodate primarily axial loads in one direction, it features a 15° contact angle and is manufactured to P4 (ABEC-7) tolerance class, ensuring minimal runout and superior performance. Its key advantages include high-speed capability with a limiting speed of 22,000 rpm, high rigidity due to its precision-ground geometry, and the availability of preload for enhanced system stiffness and reduced vibration.
7017 CE/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7017 | Basic bearing series and size designation (85mm bore, 130mm OD, 22mm width). |
| C | Designates a 15° contact angle, optimized for high-speed operation. |
| E | Indicates optimized internal design with increased ball complement (26 balls) for higher load capacity. |
| P4A | Specifies the tolerance class P4 (ABEC-7) and that the bearing is supplied with a specific preload for immediate high-rigidity performance. |
7017 CE/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: Manufactured to P4 tolerance class with a phenolic resin cage, this bearing ensures minimal dimensional variation and excellent dimensional stability under load, contributing to high system rigidity.
Superior Load Capacity: The E-type design incorporates a larger number of balls (26 balls with an 11.112 mm diameter), significantly increasing the dynamic load rating (7762 lbf) and static load rating (6525 lbf).
Optimized High-Speed Performance: The combination of the 15° contact angle and the lightweight, high-strength phenolic cage reduces centrifugal forces and friction, enabling stable operation at the high limiting speed of 22,000 rpm.
Pre-lubricated and Ready for Use: The bearing is supplied lubricated, ensuring immediate installation and initial operation within its specified temperature range of -30°C to 110°C.
7017 CE/P4A Bearing Typical Application Areas
The 7017 CE/P4A is ideally suited for high-precision, high-speed machinery where axial load support and minimal runout are critical. Common applications include:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Aerospace Control Systems
