7210 CD/P4A 50*90*20 mm Super Precision High Capacity Single Row
Angular Contact Ball Bearing
Super-precision, high-capacity, single row angular contact ball
bearing
The 7210 CD/P4A bearing,with a bore diameter of 50 mm,outside diameter of 90 mm,and
width of 20 mm,features precise dimensions, high static load
capacity, and is manufactured to the P4A precision grade. Equipped
with hybrid ceramic balls, this bearing delivers superior
performance and reliability, making it ideal for applications that
require high rotational accuracy and stability.
| Part Number | 7210 CD/P4A |
| Bearing Type | Angular Contact |
| Measurement Unit | Metric |
| Dimensions | Inner Bore Diameter (d) | 50 mm |
| Inner Bore Diameter Tolerance | -0.006mm to 0 |
| Outer Bore Diameter (D) | 90 mm |
| Outer Bore Diameter Tolerance | -0.008 mm to 0 |
| Width (B) | 20 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 | 0.45 kg |
| Matched Arrangement | No |
| Universal Matching Bearing | No |
| Preload | Not applicable |
| Load and Speed | Dynamic Radial Load | 44900 N |
| Static Radial Load | 34000 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 7210 CD/P4A Bearing?
The 7210 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 7210 CD/P4A Bearing?
The 7210 CD/P4A bearing, a precision angular contact ball bearing , is widely used
in various industries due to its high performance. Below are the
main application areas:
1. Machine Tools
In machine tools, high precision and speed are essential. The 7210 CD/P4A excels in speed, load capacity, and wear resistance, ensuring
stable and accurate operations. For example, in woodworking
machines, it ensures precise cutting and shaping by stabilizing
tool rotation, improving processing quality.
2. Mechanical Manufacturing
This bearing supports and transmits motion in mechanical systems.
In shoe-making machines like front-heel machines, its high
precision ensures accurate operation, enhancing production
efficiency and product quality.
3. Fluid Machinery
In fluid machinery such as pneumatic pumps and Roots pumps, the
bearing provides excellent sealing and stability. It reduces
leakage and vibration, ensuring efficient and reliable pump
operation.
4. Welding and Processing
- Roll Welding Machines: The bearing ensures precise alignment and stable rotation during
welding, improving weld quality.
- Hot Melt Glue Machines: It stabilizes glue nozzle operations, ensuring uniform and
accurate glue application.
5. Guide Rails and Embossing
- Sliding Guide Rails: The bearing’s smooth sliding performance and load-carrying
capacity improve rail movement and equipment efficiency.
- Embossing Machines: It ensures precise control of pressure and position during
embossing, delivering stable and accurate results.
| 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 |
