S7009 ACB/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S7009 ACB/P4ADGA Bearing Product Overview & Core Advantages
The S7009 ACB/P4ADGA is a high-precision double row angular contact ball bearing designed for demanding applications requiring exceptional rigidity and rotational accuracy. Engineered with Extra Light preload (Class A) and manufactured to P4A tolerance class, this bearing excels in applications where minimal runout and high-speed capability are critical. Its double row design enables it to support combined radial and axial loads from both directions simultaneously, offering a compact and highly reliable solution for precision machinery. The phenolic cage and sealed construction further enhance its performance in high-speed and long-life applications.
S7009 ACB/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
- S7009: Basic bearing series designation, indicating a double row angular contact ball bearing with 45mm bore, 75mm OD, and 32mm width.
- ACB: Angular Contact Bearing, universal matchable design.
- P4A: Precision tolerance class (superior to ABEC 7), ensuring extremely tight dimensional and running accuracy.
- DGA: Indicates the bearing is sealed on both sides and pre-lubricated with grease.
S7009 ACB/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball complement and 25° contact angle provide superior rigidity, enabling stable operation under significant combined loads (Radial dynamic: 3285 lbf, Static: 3015 lbf).
- High-Speed Performance: The lightweight phenolic resin cage minimizes centrifugal forces, contributing to a high limiting speed of 41,000 rpm. The universal matchable (SU) design allows for flexible mounting arrangements in high-speed spindle configurations.
- Precision & Accuracy: Manufactured to P4A tolerance class with extremely tight bore, OD, and width tolerances, this bearing guarantees precise shaft positioning and smooth, low-vibration rotation.
- Maintenance-Free Operation: The integral seals and factory-applied grease lubrication protect against contamination and provide long-term, maintenance-free service within a temperature range of -30°C to 110°C.
S7009 ACB/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes and Industrial Pumps.
- High-Frequency Motors and Compressors.
- Medical Equipment and Analytical Instruments requiring high rotational accuracy.
