7017 CDGB/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Main Dimensions
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7017 CDGB/P4A Bearing Product Overview & Core Advantages
The 7017 CDGB/P4A is a high-precision single row angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. Engineered to a P4A tolerance class, it is optimized to handle significant combined loads, primarily thrust loads in one direction, while maintaining high operational stability. Its universal matchable (SU) design allows for flexible mounting in pairs to accommodate bidirectional axial loads. The bearing features a light preload (Class B) for reduced noise and vibration, making it an ideal choice for high-speed spindles and other precision machinery where reliability is paramount.
Model Code In-Depth Explanation
| Code Segment | Technical Meaning |
|---|---|
| 7017 | Basic bearing series, indicating a metric bore diameter of 85 mm, outside diameter of 130 mm, and width of 22 mm. |
| C | Designates a 15° contact angle, optimized for high thrust load capacity. |
| DGB | Indicates a Universal Matchable (SU) bearing. Two bearings can be paired in a "back-to-back" (DB) or "face-to-face" (DF) arrangement to handle combined loads and bidirectional thrust. |
| P4A | Specifies the tolerance class, denoting very high precision with tight dimensional and running accuracy tolerances. |
7017 CDGB/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to P4A tolerance standards with a phenolic resin cage, this bearing ensures minimal runout and excellent dimensional stability, which is critical for high-speed applications up to 28,000 rpm.
- Superior Load Capacity: The 15° contact angle and robust construction using chrome steel rings and balls provide a high dynamic load rating of 15,210 lbf, enabling it to handle significant combined radial and axial loads.
- Optimized for High-Speed Operation: The lightweight phenolic cage reduces centrifugal forces, contributing to a high limiting speed. The open design allows for efficient lubrication management, further enhancing high-speed performance.
- Flexible Mounting Configuration: The Universal Matchable (SU) feature allows for precise preloading when mounted in pairs, simplifying assembly and ensuring optimal performance in complex load scenarios.
7017 CDGB/P4A Bearing Typical Application Areas
The 7017 CDGB/P4A is ideally suited for high-performance machinery requiring precision and speed, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Aerospace Control Systems
- Medical and Dental Equipment
