7007 FE/P4ADT
7000 Series Super Precision Angular Contact Ball Bearings
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Main Dimensions
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7007 FE/P4ADT Bearing Product Overview & Core Advantages
The 7007 FE/P4ADT is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This duplex tandem (DT) arrangement bearing set offers superior axial rigidity and is preloaded for optimal operational stability. Its primary advantage lies in its ability to handle combined loads efficiently, making it ideal for high-precision spindles and other machinery where high rigidity and minimal runout are critical. Manufactured to a P4A tolerance class, it ensures exceptional dimensional and running accuracy.
7007 FE/P4ADT Bearing Model Code Explained, Specifications & Naming Convention
- 7007: Basic series number, indicating a 35mm bore, 62mm OD, and 28mm width.
- FE: Indicates a specific internal design and contact angle optimized for duplex tandem mounting.
- P4A: Denotes the tolerance class, specifying very high precision levels for both dimensional and running accuracy (superior to ABEC 7).
- DT: Signifies that the bearings are supplied as a matched set in a Duplex Tandem arrangement. This configuration is designed to support high unidirectional thrust loads.
7007 FE/P4ADT Bearing Structural Features & Performance Benefits
Duplex Tandem Design: The two bearings are matched and preloaded at the factory. This arrangement significantly increases axial stiffness and provides precise shaft positioning, which is essential for high-speed applications.
High-Precision Construction: Built to P4A tolerance standards with a phenolic resin cage, this bearing ensures smooth operation, reduced vibration, and excellent performance at limiting speeds up to 56,000 rpm.
Superior Load Capacity: The 18° contact angle and robust chrome steel construction provide a high dynamic load rating of 4185 lbf and a static load rating of 2970 lbf, enabling reliable operation under significant combined radial and axial loads.
Optimized for Performance: The open seal type allows for customized lubrication strategies, while the phenolic cage contributes to lower friction and higher operational speeds.
7007 FE/P4ADT Bearing Typical Application Areas
This high-precision, preloaded bearing set is ideally suited for:
- Machine Tool Spindles (especially for milling and grinding)
- High-Speed Machining Centers
- Precision Grinding Spindles
- High-Frequency Spindles
- Other applications requiring high rigidity and exceptional rotational accuracy.
