S7009 CE/P4ADBA
Sealed Super Precision Angular Contact Ball Bearings
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S7009 CE/P4ADBA Bearing Product Overview & Core Advantages
The S7009 CE/P4ADBA is a precision duplex back-to-back angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This P4A tolerance class bearing features a sealed design and is preloaded for optimal performance. Its primary advantage lies in its ability to handle combined radial and axial loads simultaneously, making it ideal for high-speed, high-precision machinery where stability and reliability are paramount. The compact design and extra light preload ensure smooth operation with minimal deflection.
S7009 CE/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
- S: Denotes a universal matching bearing, but in this case, it is specified as a matched set of two bearings in a Duplex Back-to-Back (DB) arrangement.
- 7009: Standard bearing series designation, indicating a 45mm bore, 75mm outside diameter, and specific internal geometry.
- CE: Indicates the specific internal clearance and preload designation. In this context, it corresponds to the Extra light preload (Class A).
- P4A: Specifies the tolerance class. P4A is a very high precision grade with tight tolerances on bore, outside diameter, and width, ensuring superior running accuracy.
- DB: Denotes the Duplex Back-to-Back arrangement. This configuration provides high rigidity and can withstand moment loads.
- A: Confirms the Extra light preload (Class A).
S7009 CE/P4ADBA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex back-to-back (DB) arrangement creates a rigid bearing system capable of withstanding significant combined radial and axial loads as well as moment loads. This is critical for applications like machine tool spindles.
- Precision Performance: Manufactured to P4A tolerance class, this bearing guarantees minimal runout and exceptional dimensional stability, contributing to superior machine accuracy.
- Optimized High-Speed Operation: The phenolic resin cage is lightweight and robust, reducing centrifugal forces and allowing for a high limiting speed of 41,000 rpm. The 15° contact angle provides an excellent balance between radial and axial load capacity for high-speed applications.
- Sealed & Pre-Lubricated for Longevity: The sealed design effectively excludes contaminants. Pre-lubricated with grease, it offers a wide operating temperature range from -30°C to 110°C, ensuring reliable, long-term performance with minimal maintenance.
S7009 CE/P4ADBA Bearing Typical Application Areas
- Machine Tool Spindles (e.g., CNC machining centers, grinding spindles)
- High-Frequency Motors & Spindles
- Precision Gearboxes
- Industrial Pumps and Compressors
- Medical and Laboratory Equipment
- Robotic Arm Joints and Precision Drives