S7005 FEGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
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S7005 FEGA/HCP4A Bearing Product Overview & Core Advantages
The S7005 FEGA/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy, high-speed capability, and superior rigidity. Engineered to a P4A tolerance class, this bearing is optimized to accommodate combined loads (radial and axial) simultaneously. Its extra light preload (Class A) minimizes deflection under operational stresses, ensuring high running accuracy. The use of a phenolic cage and ceramic balls contributes to its outstanding high-speed performance and reduced rotational inertia, making it a premier choice for high-reliability, precision machinery.
S7005 FEGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
- S7005: Basic series designation, indicating a metric, 25mm bore diameter bearing.
- FE: Signifies the use of a phenolic resin cage, which is lightweight and suitable for high speeds.
- GA: Indicates the bearing is universally matchable (SU) and supplied in a set of two for precise preload configuration.
- HC: Denotes the use of hybrid ceramic balls (silicon nitride), offering reduced weight, higher stiffness, and superior performance at high speeds.
- P4A: Specifies the tolerance class, exceeding ABEC 7/ISO P4 standards for exceptional dimensional and running accuracy.
S7005 FEGA/HCP4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: The angular contact design with an 18° contact angle and extra light preload provides a stiff bearing arrangement that minimizes axial and radial play, crucial for applications requiring high positional accuracy.
Superior High-Speed Capability: The combination of a lightweight phenolic cage and low-density ceramic balls significantly reduces centrifugal forces, enabling a high limiting speed of 83,000 rpm. This makes it ideal for high-speed spindles.
Enhanced Load Capacity: Designed to handle combined loads effectively. The dynamic load rating of 1843 lbf and static load rating of 911 lbf ensure reliable performance under significant operational stresses.
Sealed and Lubricated for Life: As a sealed bearing pre-lubricated with grease, it is protected from contamination and is maintenance-free within its specified temperature range of -30°C to 110°C.
S7005 FEGA/HCP4A Bearing Typical Application Areas
The S7005 FEGA/HCP4A is ideally suited for high-performance machinery where precision and speed are paramount. Key applications include:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Aerospace Control Systems
- High-Speed Robotic Drives
