7205 ACD/P4A
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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7205 ACD/P4A Bearing Product Overview & Core Advantages
The 7205 ACD/P4A is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Engineered to accommodate primarily axial loads in one direction and combined loads, it features a 25° contact angle for optimal load distribution. Manufactured to P4 (ABEC-7) tolerance class, it delivers superior running accuracy and is preloaded for enhanced system stiffness and minimal axial/radial play, making it ideal for demanding, high-speed machinery.
7205 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7205 | Standard bearing series designation (35mm OD, 25mm Bore) |
| AC | Angular Contact design with a 25° contact angle |
| D | High load capacity internal design |
| P4A | Indicates P4 (ABEC-7) tolerance class with specific running accuracy requirements |
7205 ACD/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: The single-row angular contact design, combined with a phenolic resin cage, provides excellent dimensional stability and high-speed capability. The 25° contact angle ensures optimal axial load carrying capacity and system stiffness.
Superior Load Capacity: Engineered with a high-load capacity internal geometry (D), this bearing effectively handles combined radial and axial loads, with a dynamic load rating of 2925 lbf and a static load rating of 1564 lbf.
High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, enabling a limiting speed of 40,000 rpm. The open design and factory-applied lubrication facilitate efficient heat dissipation.
Precision Engineering: Manufactured to P4 tolerance class with tight dimensional tolerances on the bore, outside diameter, and width, ensuring precise fit and minimal runout for high-accuracy applications.
7205 ACD/P4A Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for applications demanding high speed, accuracy, and rigidity, including:
- Machine Tool Spindles
- High-Speed Motors and Spindles
- Precision Grinding Equipment
- Industrial Pumps and Compressors
- Robotic Drives and Precision Gearboxes
