S7018 CDTP/P4B
Sealed Super Precision Angular Contact Ball Bearings
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S7018 CDTP/P4B Bearing Product Overview & Core Advantages
The S7018 CDTP/P4B is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and rigidity. This single-row bearing is distinguished by its 15° contact angle and is supplied with a preload, ensuring minimal axial and radial deflection under operating conditions. Manufactured to P4 (ABEC-7) tolerance class, it guarantees superior running accuracy. Its sealed design, combined with factory-applied lubrication, makes it a robust, ready-to-install solution for high-speed spindles and precision machinery.
S7018 CDTP/P4B Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| S7018 | Series designation for a high-precision angular contact ball bearing. |
| C | Specifies a 15° contact angle, optimized for high-speed operation and moderate axial load capacity. |
| D | Indicates a duplex (preloaded) arrangement where two bearings are paired and set to a specific preload for maximum system rigidity. |
| T | Denotes a phenolic (textolite) cage, which offers low weight, high strength, and excellent performance at high speeds. |
| P | Signifies the bearing is lubricated (greased) from the factory for immediate use. |
| P4B | Defines the tolerance class P4 (ABEC-7), representing very high precision levels for running accuracy and dimensional stability. |
S7018 CDTP/P4B Bearing Structural Features & Performance Benefits
High Rigidity and Precision: The combination of a 15° contact angle and a preloaded duplex arrangement provides exceptional system stiffness, minimizing deflection under combined loads. Manufactured to P4 precision tolerances, it ensures smooth, vibration-free operation essential for high-precision applications.
Superior High-Speed Capability: The lightweight and robust phenolic cage (suffix T) is engineered for high rotational speeds, reducing centrifugal forces and friction. This, combined with the optimized internal geometry, contributes to the high limiting speed of 9,000 rpm.
Robust Load Capacity: With a dynamic load rating of 17,842 lbf and a static load rating of 17,212 lbf, this bearing is capable of handling significant combined radial and axial loads.
Sealed and Lubricated for Longevity: The sealed design effectively excludes contaminants, while the factory-applied lubrication ensures optimal performance from the start, reducing maintenance needs and extending service life within the specified temperature range of -30°C to 110°C.
S7018 CDTP/P4B Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers where precision and rigidity are paramount.
- Precision Drives and Feed Systems: Servo motors and ball screw supports requiring high running accuracy.
- High-Frequency Motors and Spindles: Applications demanding low vibration and high rotational speeds.
- Medical and Laboratory Equipment: Centrifuges and other precision instruments.
- Robotics and Automation: Articulated arms and precision gearboxes.
