7208 ACD/P4A Super Precision P4A High Capacity D Design Angular Contact Ball Bearing 40*80*18 mm
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 |
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.
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:
- Precision Machine Tools: Spindles in high-precision CNC machines and machining centers, ensuring stability at high speeds. Transmission systems for ball screws and linear guides for improved positioning accuracy.
- Industrial Automation: Packaging machinery for sealing and filling equipment, handling moderate radial and axial loads. Robot joints for low-friction, high-rigidity motion control.
- Special Industrial Environments: High-temperature/load environments including ovens, furnaces, and painting machines with heat resistance. Metallurgy and mining applications for heavy-duty rotating components handling combined loads.
- Laboratory and Medical Equipment: Precision instruments including measuring devices and optical equipment, ensuring low vibration and noise. Medical devices such as centrifuges and surgical instruments, providing stable support.
- Other Fields: Printing and papermaking machinery for precision roller support. Aerospace applications for small precision transmission systems (customized).
Certificates: RoHS & REACH, IATF16949:2016
Features: High Speed and Stiffness, High Running Accuracy, High Load Carrying Capacity
Service: OEM & ODM Customized Services
Samples: Please Contact Us
Service Support: Online Support, Professional Service
Size Availability: Standard sizes available. For custom sizes, please contact us
Factory Manufacturer: Yes
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