7017 ACD/P4ADBC
7000 Series Super Precision Angular Contact Ball Bearings
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7017 ACD/P4ADBC Bearing Product Overview & Core Advantages
The 7017 ACD/P4ADBC is a precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This duplex back-to-back (DB) arrangement is preloaded to provide high rigidity and superior stability under combined loads, including significant radial and axial forces. Manufactured to P4A tolerance class, it ensures minimal runout and is ideal for high-speed, high-precision machinery where reliability is paramount.
7017 ACD/P4ADBC Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| AC | Angular Contact design with a 25° contact angle, optimized for axial load capacity. |
| D | Indicates a duplex pair of bearings supplied as a set. |
| P4A | High precision tolerance class exceeding ABEC 7, ensuring superior running accuracy. |
| DB | Back-to-Back arrangement, providing high moment rigidity and excellent stability. |
| C | Specifies a moderate preload (Class C) for optimal stiffness and performance. |
7017 ACD/P4ADBC Bearing Structural Features & Performance Benefits
High Rigidity & Stability: The duplex back-to-back (DB) configuration creates a wide effective spread between load centers, significantly increasing the bearing's resistance to moment loads and providing exceptional high rigidity for precise shaft positioning.
Superior Load Capacity: With a 25° contact angle and robust construction, this bearing efficiently handles combined radial and axial loads simultaneously. The dynamic load rating of 23,400 lbf and static load rating of 27,450 lbf ensure reliable performance under heavy-duty conditions.
Optimized High-Speed Performance: The lightweight phenolic cage minimizes centrifugal forces, reduces friction, and contributes to a high limiting speed of 17,000 rpm. The precision-ground chrome steel components ensure smooth operation at high velocities.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls on the bore diameter (85 mm), outside diameter (130 mm), and width (44 mm), this bearing guarantees consistent, high-accuracy performance in the most demanding applications.
7017 ACD/P4ADBC Bearing Typical Application Areas
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers requiring extreme precision and rigidity.
- Precision Gearboxes: In industrial automation and robotics where accurate motion control is critical.
- High-Frequency Motors and Spindles: Applications demanding high rotational speeds and low vibration.
- Medical and Laboratory Equipment: Where reliability, quiet operation, and high accuracy are essential.
- Pumps and Compressors: For handling significant axial and radial loads in demanding fluid-handling systems.
