S7008 FE/HCP4ADT
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S7008 FE/HCP4ADT Bearing Product Overview & Core Advantages
The S7008 FE/HCP4ADT is a precision duplex tandem angular contact ball bearing designed for high-performance applications. This matched set bearing features a P4A super-precision tolerance and is preloaded for immediate installation, delivering exceptional rotational accuracy and system rigidity. Its construction with a ceramic ball and phenolic cage enables superior high-speed performance, with a limiting speed of 41,000 rpm. The sealed design with factory-applied grease ensures long-term, maintenance-free operation, making it ideal for demanding applications requiring high reliability and minimal downtime.
S7008 FE/HCP4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning | Benefit |
|---|---|---|
| S7008 | Basic bearing series with 40mm bore, 68mm OD, 30mm width | Standardized dimensions for easy integration |
| FE | Steel cage design (inferred from context) | Robust construction for demanding conditions |
| HC | Hybrid Ceramic (Silicon Nitride balls) | Reduced friction, higher speed capability, and longer service life |
| P4A | Super precision tolerance class | Exceptional running accuracy for critical applications |
| DT | Duplex Tandem arrangement (2 bearings) | Increased axial load capacity in one direction and system stiffness |
S7008 FE/HCP4ADT Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex tandem arrangement of two preloaded bearings creates an exceptionally stiff bearing system, capable of handling significant combined loads (radial and axial). The 18° contact angle is optimized for sustaining high axial loads in one direction.
Superior High-Speed Performance: The use of ceramic (Si3N4) balls significantly reduces centrifugal forces and friction, while the lightweight phenolic cage ensures stability. This combination allows the bearing to achieve its high limiting speed of 41,000 rpm with minimal heat generation.
Pre-optimized for Performance: As a factory-matched set with preload applied, the bearings are ready for installation, guaranteeing optimal performance and eliminating the need for complex on-site adjustment, ensuring consistent high precision.
Sealed & Lubricated for Life: The integral seals protect against contamination, and the pre-applied high-performance grease provides reliable lubrication across the specified temperature range of -30°C to 110°C, enabling maintenance-free operation.
S7008 FE/HCP4ADT Bearing Typical Application Areas
The S7008 FE/HCP4ADT is engineered for high-end applications where precision, speed, and reliability are paramount. Key industries and equipment include:
- High-Frequency Machine Tool Spindles: For CNC machining centers, grinding spindles, and milling applications.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- Aerospace & Defense Systems: Gyroscopes, radar platforms, and auxiliary power units (APUs).
- High-Speed Motors and Drives: Especially in applications requiring low vibration and noise.
