7208 CD/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 CD/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 CD/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 | 15° (25°,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 | 33800 N |
| Static Radial Load | 24000 N |
| Reference Speed For Grease (r/min) | 18,000 rpm |
| Limiting Speed For Oil(r/min) | 30,000 rpm |
What's the Performance Features of 7208 CD/P4A Bearing?
The 7208 CD/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 CD/P4A Bearing?
The 7208 CD/P4A high-precision angular contact ball bearing is designed for
high-speed and high-accuracy applications, making it ideal for
precision machine tools, industrial machinery, and transport
equipment, as well as specialized devices requiring smooth
operation like medical and aerospace instruments. Featuring a 15°
contact angle, it supports moderate radial and axial loads and
operates efficiently at speeds up to 18,000 rpm (or 30,000 rpm with
oil-air lubrication). Made from bearing steel with a P4A precision
grade, it offers tight tolerances and can be paired or preloaded in
various configurations to suit different operational needs. Its
robust design and material properties also make it suitable for
high-temperature environments and heavy industries, ensuring
reliable performance and extended lifespan across a wide range of
demanding applications.
| 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 |
