S7005 CD/HCP4ADFB
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
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S7005 CD/HCP4ADFB Bearing Product Overview & Core Advantages
The S7005 CD/HCP4ADFB is a precision duplex angular contact ball bearing designed for high-performance applications. This matched set features a Face-to-Face (DF) duplex arrangement and is manufactured to P4A super-precision tolerance standards. Its core advantages include exceptional rotational accuracy, high rigidity for stable spindle operation, and the ability to accommodate combined radial and axial loads. The use of ceramic balls and a phenolic cage contributes to superior high-speed performance and reduced operational weight.
S7005 CD/HCP4ADFB Bearing Model Code Explained, Specifications & Naming Convention
- S7005: Standard bore (25mm) and outside diameter (47mm) designation.
- C: 15° contact angle.
- D: Duplex bearing.
- HC: Hybrid Ceramic (steel rings with ceramic balls).
- P4A: High-precision tolerance class, exceeding ABEC 7/ISO P4.
- DF: Duplex Face-to-Face mounting arrangement.
- B: Light preload / Class B.
S7005 CD/HCP4ADFB Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The duplex face-to-face (DF) arrangement provides high moment rigidity and excellent stability, making it ideal for applications subject to complex loading conditions. It can handle significant combined loads (radial and axial).
Superior High-Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic cage enables a very high limiting speed of 83,000 rpm. This also reduces friction and heat generation.
Precision and Longevity: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration. The pre-greased and sealed design protects against contamination, ensuring consistent performance and a long service life in demanding environments.
S7005 CD/HCP4ADFB Bearing Typical Application Areas
This high-precision, high-speed bearing is ideally suited for:
- Machine Tool Spindles (high-speed milling, grinding)
- Precision Grinding Spindles
- High-Frequency Motors
- Turbochargers
- Advanced Robotics and Automation
