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7208 ACD/P4A 40*80*18 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing
Super-precision, high-capacity, single row angular contact ball bearing
The 7208 ACD/P4A bearing,with a bore diameter of 40 mm,outside diameter of 80 mm,and width of 18 mm,features precise dimensions, high static load capacity, and is manufactured to the P4A precision grade.This bearing delivers superior performance and reliability, making it ideal for applications that require high rotational accuracy and stability.
| Part Number | 7208 ACD/P4A | |
| Bearing Type | Angular Contact | |
| Measurement Unit | Metric | |
| Dimensions | Inner Bore Diameter (d) | 40 mm |
| Inner Bore Diameter Tolerance | -0.006mm to 0 | |
| Outer Bore Diameter (D) | 80 mm | |
| Outer Bore Diameter Tolerance | -0.007mm to 0 | |
| Width (B) | 18 mm | |
| Width Tolerance | -0.2mm to 0 | |
| Specifications | Contact Angle | 25° (15°,40° Available) |
| Material | Chrome Steel | |
| Cage Material | Phenolic | |
| Number of Rows | 1 Single Row | |
| Seal Type | Open | |
| Temperature Range | -30°C to 150°C | |
| Lubrication | Oil or Grease | |
| Tolerance Class | P4A better than P4 (ABEC-7) | |
| Weight | 0.37 kg | |
| Matched Arrangement | No | |
| Universal Matching Bearing | No | |
| Preload | Not applicable | |
| Load and Speed | Dynamic Radial Load | 31900 N |
| Static Radial Load | 22800 N | |
| Reference Speed For Grease (r/min) | 16,000 rpm | |
| Limiting Speed For Oil(r/min) | 26,000 rpm | |
What's the Performance Features of 7208 ACD/P4A Bearing?
The 7208 ACD/P4A angular contact ball bearing is manufactured to P4A precision grade standards, excels in high-precision and high-performance applications. It handles both radial and axial loads simultaneously, supports high-speed operation with stability, minimizes torque and friction for energy efficiency, and offers enhanced rigidity for accuracy under heavy loads. Built with hybrid ceramic balls, this durable bearing ensures extended service life and effective performance across a wide temperature range, making it ideal for applications requiring superior rotational accuracy and reliability.
What's the Applications of the 7208 ACD/P4A Bearing?
As a high-precision angular contact ball bearing, the 7208 ACD/P4A is primarily used in applications requiring high speed, precision, and stability. Specific application areas include:
1. Precision Machine Tools
Spindles: High-precision CNC machines and machining centers, ensuring stability at high speeds.
Transmission Systems: Ball screws and linear guides for improved positioning accuracy.
2. Industrial Automation
Packaging Machinery: Sealing and filling equipment, handling moderate radial and axial loads.
Robot Joints: Low-friction, high-rigidity motion control.
3. Special Industrial Environments
High-Temperature/Load Environments: Ovens, furnaces, and painting machines with heat resistance.
Metallurgy and Mining: Heavy-duty rotating components, handling combined loads.
4. Laboratory and Medical Equipment
Precision Instruments: Measuring devices and optical equipment, ensuring low vibration and noise.
Medical Devices: Centrifuges and surgical instruments, providing stable support.
5. Other Fields
Printing and Papermaking Machinery: Precision roller support.
Aerospace: Small precision transmission systems (customized).
| CERTIFICATE | RoHS & REACH, IATF16949:2016 |
| Feature | High Speed and Stiffness,High Running Accuracy,High Load Carrying Capacity |
| Service | OEM&ODM Customized Services |
| Samples | Please Contact Us |
| Service | Online Support,Professional Service |
| Size | Standard,For custom sizes ,please contact us |
| Factory Manufacturer | Yes |