S7018 CDTP/HCP4B
Hybrid Ceramic Super Precision Bearings
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S7018 CDTP/HCP4B Bearing Product Overview & Core Advantages
The S7018 CDTP/HCP4B is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional speed, rigidity, and accuracy. Its single-row design with a 15° contact angle is optimized to support combined loads, accommodating significant radial loads alongside axial loads in one direction. Manufactured to a P4 (ABEC-7) tolerance class, it delivers superior running accuracy, making it ideal for high-performance spindles and other precision machinery. The combination of a phenolic cage, ceramic balls, and factory-applied lubrication enables superior high-speed performance and operational reliability.
S7018 CDTP/HCP4B Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| S7018 | Standard bearing series designation with a 90 mm bore and 140 mm outside diameter. |
| C | Specifies a 15° contact angle. |
| DTP | Indicates a phenolic (polyamide) cage and that the bearing is lubricated. |
| HC | Signifies the use of hybrid ceramic balls (ceramic rolling elements). |
| P4 | Denotes a high-precision tolerance class (equivalent to ABEC-7). |
S7018 CDTP/HCP4B Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single-row angular contact design with a P4 tolerance class provides high running accuracy and system rigidity, essential for precise positioning and minimal deflection under load.
- Superior High-Speed Capability: The lightweight phenolic cage and low-density ceramic (hybrid) balls reduce centrifugal forces, significantly increasing the limiting speed (11,000 rpm) and reducing operational friction and heat generation.
- Excellent 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 substantial combined radial and axial loads.
- Enhanced Durability and Longevity: Ceramic balls offer superior wear resistance, electrical insulation, and the ability to operate with minimal lubrication, extending service life in demanding conditions.
- Sealed and Lubricated for Reliability: The bearing is sealed and comes pre-lubricated, protecting against contamination and ensuring consistent performance from installation.
S7018 CDTP/HCP4B Bearing Typical Application Areas
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Robotics and Automation Equipment
- High-Frequency Motors and Spindle Drives
- Medical and Dental Equipment (e.g., high-speed handpieces)
- Aerospace Actuation Systems and Instrumentation
