7002 CE/P4ADGA
7000 Series Super Precision Angular Contact Ball Bearings
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7002 CE/P4ADGA Bearing Product Overview & Core Advantages
The 7002 CE/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed capability. Manufactured to P4A tolerance class, this bearing delivers superior running precision. Its 15° contact angle and Universal Matchable (SU) design enable it to handle combined radial and axial loads efficiently. The bearing comes pre-lubricated and features a lightweight phenolic cage, making it an ideal solution for high-speed spindles, precision instruments, and other applications where high rigidity and minimal friction are critical.
7002 CE/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| C | 15° Contact Angle | Optimized for high-speed operation and moderate axial loads. |
| E | Optimized Internal Design | Increased load rating and enhanced performance. |
| P4A | High Precision Tolerance Class | Superior dimensional and running accuracy for critical applications. |
| DGA | Universal Matchable (SU) Pair | Two bearings are supplied as a pre-matched set for simplified mounting and optimal preload. |
7002 CE/P4ADGA Bearing Structural Features & Performance Benefits
- High-Speed Performance: The combination of a lightweight phenolic cage and a 15° contact angle enables a high limiting speed of 127,000 rpm, reducing centrifugal forces and operational temperature.
- Precision & Rigidity: Manufactured to ABEC 7 / P4A tolerance standards with strict dimensional control (bore and OD tolerance: -0.004mm to 0), ensuring high running accuracy and system rigidity.
- Superior Load Capacity: The optimized internal geometry (E-design) increases the dynamic load rating to 1609 lbf, providing excellent reliability under combined loads.
- Universal Matching (SU): Supplied as a matched pair (DGA), these bearings are universally matchable, allowing for flexible mounting configurations (DB, DF, DT) to achieve the desired preload (Extra light / Class A) and stiffness.
7002 CE/P4ADGA Bearing Typical Application Areas
The 7002 CE/P4ADGA is engineered for high-performance applications, including:
- Machine Tool Spindles: High-speed machining centers and grinding spindles.
- Precision Instruments: Measuring devices, optical scanners, and laboratory equipment.
- High-Speed Motors: Servo motors, spindle motors, and turbo-molecular pumps.
- Medical Equipment: Dental handpieces and small precision medical devices.
