S7007 CE/HCP4ADBA
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
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S7007 CE/HCP4ADBA Bearing Product Overview & Core Advantages
The S7007 CE/HCP4ADBA is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This duplex back-to-back (DB) matched set features a P4A super-precision tolerance class and is preloaded to Extra Light (Class A) specifications, ensuring minimal runout and superior rotational accuracy. Its construction with ceramic balls and a phenolic cage enables outstanding high-speed capabilities and reduced friction. This bearing is engineered to handle combined loads (radial and axial) simultaneously, making it ideal for high-rigidity, high-reliability spindle systems.
S7007 CE/HCP4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| S7007 | Bearing series and size designation | Indicates a 35mm bore, 62mm OD, 28mm width high-precision bearing. |
| CE | Contact Angle (15°) & Enhanced Design | Optimized for high-speed operation and precise axial load capacity. |
| HC | Hybrid Ceramic | Signifies the use of ceramic balls, offering lower density, higher stiffness, and superior performance at high speeds. |
| P4A | Tolerance Class | Denotes a super-precision bearing with extremely tight dimensional and running accuracy tolerances. |
| DB | Duplex Back-to-Back Arrangement | Two bearings are matched and preloaded in a back-to-back configuration to provide high moment rigidity and excellent operational stability. |
| A | Preload Class (Extra Light) | Specifies a minimal preload for very high-speed applications with low friction and heat generation. |
S7007 CE/HCP4ADBA Bearing Structural Features & Performance Benefits
High Rigidity & Stability: The duplex back-to-back (DB) arrangement creates a wide, rigid support system that effectively resists moment loads and shaft deflection, ensuring precise alignment under operating conditions.
Superior High-Speed Performance: The combination of low-density ceramic balls and a lightweight, robust phenolic resin cage significantly reduces centrifugal forces and inertial drag. This allows the bearing to achieve a limiting speed of 56,000 rpm with minimal heat buildup and wear.
Enhanced Load Capacity: With a 15° contact angle and precision-ground raceways, this bearing is optimized to handle significant combined radial and axial loads simultaneously, a critical requirement for spindle applications.
Pre-Lubricated & Sealed: The bearing comes pre-greased for immediate operation and features integral seals to retain lubricant and exclude contaminants, enhancing service life and reliability in critical environments.
S7007 CE/HCP4ADBA Bearing Typical Application Areas
The S7007 CE/HCP4ADBA is engineered for the most demanding high-precision, high-speed rotational systems. Its primary applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, engraving machines, and high-frequency motor spindles.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and auxiliary power units (APUs).
- Medical Equipment: High-speed dental handpieces and laboratory centrifuges.
