S7017 CB/HCP4A
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
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S7017 CB/HCP4A Bearing Product Overview & Core Advantages
The S7017 CB/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional rotational accuracy and rigidity. This single-row bearing is distinguished by its 15° contact angle and P4 (ABEC-7) tolerance class, ensuring superior running accuracy. Its core advantages include the ability to accommodate combined radial and axial loads simultaneously, high-speed capability facilitated by a phenolic cage and ceramic balls, and is supplied pre-lubricated and preloaded for immediate, high-performance operation in a compact design.
S7017 CB/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| S7017 | Basic bearing series designation, indicating a 85 mm bore, 130 mm OD, and 22 mm width. |
| CB | Specifies a specific contact angle (15°) and internal clearance for a universal matched arrangement. |
| HC | Indicates the use of Hybrid Ceramic components, specifically ceramic balls. |
| P4A | Denotes a high-precision tolerance class (P4/ABEC-7) and specific accuracy requirements for the bearing. |
S7017 CB/HCP4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: Manufactured to a P4 tolerance class, this bearing provides extremely tight dimensional control for precise shaft positioning and minimal runout, essential for high-accuracy applications.
Enhanced Speed and Performance: The combination of a lightweight phenolic resin cage and ceramic (silicon nitride) balls significantly reduces centrifugal forces and friction, enabling a high limiting speed of 16,000 rpm. This hybrid ceramic design also offers improved stiffness and reduced heat generation.
Superior Load Capacity: The 15° contact angle is optimized to handle significant combined radial and axial loads efficiently.
Preloaded and Ready-to-Use: Supplied with a preload, the bearing eliminates internal clearance, increasing system rigidity and rotational accuracy from the moment of installation.
Sealed and Lubricated: The sealed design protects against contamination, and the bearing comes pre-lubricated for long-term, maintenance-free operation within its specified temperature range.
S7017 CB/HCP4A Bearing Typical Application Areas
The S7017 CB/HCP4A is ideally suited for high-performance machinery where precision, speed, and rigidity are paramount. Key application areas include:
- Machine Tool Spindles (High-speed milling, grinding)
- Precision Robotics and Automation Arms
- High-Frequency Spindles for PCB drilling
- Aerospace and Defense Instrumentation
- Medical Equipment (e.g., Dental handpieces)
