S7004 CE/HCP4A
Hybrid Ceramic Super Precision Bearings
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S7004 CE/HCP4A Bearing Product Overview & Core Advantages
The S7004 CE/HCP4A is a premium single-row angular contact ball bearing engineered for applications demanding exceptional precision and high-speed performance. This precision bearing is distinguished by its ceramic ball construction and P4 (ABEC-7) tolerance class, ensuring superior dimensional accuracy and rotational stability. It is preloaded and pre-lubricated, offering high rigidity and immediate readiness for high-performance assemblies. Its design is optimized to handle significant combined loads (radial and axial) simultaneously, making it an ideal solution for compact, high-reliability systems.
S7004 CE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| S7004 | Denotes the bearing series and size (20mm bore, 42mm OD). |
| CE | Indicates the use of Hybrid Ceramic balls (Silicon Nitride). |
| HCP4A | Specifies the P4 (ABEC-7) tolerance class and a 15° contact angle. |
S7004 CE/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The use of ceramic balls with a steel ring significantly reduces centrifugal forces, lowers operating temperature, and enables higher limiting speeds compared to all-steel equivalents. This also enhances durability and resistance to wear.
- High Rigidity & Precision: The single-row angular contact design, combined with a preload and a 15° contact angle, provides excellent axial and radial stiffness, minimizing deflection under load for superior positional accuracy.
- Superior High-Speed Performance: The lightweight phenolic cage and optimized internal geometry contribute to a high limiting speed of 65,000 rpm, making it a true high-speed bearing.
- Ready-to-Use & Sealed: The bearing is sealed and comes pre-lubricated, protecting against contamination and providing long-term, maintenance-free operation within its specified temperature range.
S7004 CE/HCP4A Bearing Typical Application Areas
This high-precision, high-speed angular contact bearing is ideally suited for demanding applications, including:
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- High-Frequency Motors and Spindles
- Robotic Drives and Actuators
- Medical and Dental Handpieces
- Aerospace Instrumentation
