S7002 CD/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S7002 CD/P4A Bearing Product Overview & Core Advantages
The S7002 CD/P4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. Engineered to simultaneously handle combined radial and axial loads, this bearing features a phenolic cage and comes pre-lubricated for immediate use. Its compact design, with a 15 mm bore and 9 mm width, makes it ideal for space-constrained, high-speed spindles and other precision machinery where high rigidity and superior running accuracy are paramount.
S7002 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7002 | Basic bearing series, indicating a 15mm bore and 32mm outside diameter. |
| CD | Specific internal design and contact angle (15°) optimized for high-precision applications. |
| P4 | Indicates a P4 (ABEC-7) tolerance class, signifying very high dimensional and running accuracy. |
| A | Denotes that the bearing is supplied with a specific preload for enhanced rigidity and precise shaft positioning. |
S7002 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The 15° contact angle and factory-set preload work in concert to provide exceptional system stiffness, minimizing deflection under load and ensuring superior running accuracy. This is critical for applications like machine tool spindles.
- Optimized for High-Speed Operation: The lightweight phenolic resin cage reduces centrifugal forces, lowers friction, and contributes to the high limiting speed of 56,000 rpm. This makes it an excellent high-speed bearing.
- Superior Load Capacity: The angular contact design enables the bearing to efficiently support combined loads (radial and axial loads acting simultaneously), a common requirement in precision machinery.
- Ready-to-Use & Reliable: The bearing is pre-lubricated, ensuring optimal performance from the first rotation and simplifying the installation process.
S7002 CD/P4A Bearing Typical Application Areas
The S7002 CD/P4A is ideally suited for high-performance applications where precision and speed are critical. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and drilling spindles.
- Precision Instruments: Measuring devices, optical scanners, and coordinate measuring machines (CMM).
- High-Speed Motors and Drives: Servo motors, spindle motors, and other high-RPM electric drives.
- Medical and Dental Equipment: High-speed handpieces and laboratory automation equipment.
