7009 ACDGC/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7009 ACDGC/P4A Bearing Product Overview & Core Advantages
The 7009 ACDGC/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Engineered to a P4A tolerance class, it excels in high-speed operations while simultaneously accommodating combined radial and axial loads. Its single-row design with a 25° contact angle and moderate preload (Class C) ensures optimal performance, making it an ideal choice for high-precision and high-reliability machinery where uncompromising performance is critical.
7009 ACDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
- 7009: Basic designation indicating a 45 mm bore, 75 mm OD, and 16 mm width.
- AC: Angular Contact design, optimized for combined loads.
- D: Signifies a high ball complement for increased load capacity.
- GC: Indicates specific internal geometry and moderate preload (Class C) for optimal stiffness and running accuracy.
- P4A: Denotes an ultra-precision tolerance class superior to ABEC 7, ensuring minimal runout and vibration.
7009 ACDGC/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The 25° contact angle and robust construction enable superior support for combined radial and one-direction axial loads. The high ball complement (17 balls) and phenolic cage contribute to the high dynamic and static load ratings of 6210 lbf and 4860 lbf, respectively.
High-Speed Performance: The lightweight phenolic cage minimizes centrifugal forces, while the optimized internal geometry allows for a high limiting speed of 41,000 rpm, making it a true high-speed bearing.
Precision and Universal Matching: Manufactured to P4A precision tolerances with a universal matching designation (SU), this bearing can be mounted in sets (typically 3 bearings) to form a pre-loaded arrangement, achieving maximum system rigidity and accuracy without selective assembly.
Material and Lubrication: Constructed from chrome steel for both rings and balls, it offers high durability. The bearing is pre-lubricated for immediate operation within a temperature range of -30°C to 110°C.
7009 ACDGC/P4A Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Equipment
- Industrial Pumps and Compressors
- Robotic Drives and Actuators
