S7209 CD/P4A 45*85*19 mm Super Precision High Capacity Single Row
Angular Contact Ball Bearing
Super-precision, high-capacity, single row angular contact ball
bearing with seals
The S7209 CD/P4A bearing,with a bore diameter of 45 mm,outside diameter of 85 mm,and
width of 19 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 | S7209 CD/P4A |
| Bearing Type | Angular Contact |
| Measurement Unit | Metric |
| Dimensions | Inner Bore Diameter (d) | 45 mm |
| Inner Bore Diameter Tolerance | -0.006mm to 0 |
| Outer Bore Diameter (D) | 85 mm |
| Outer Bore Diameter Tolerance | -0.008 mm to 0 |
| Width (B) | 19 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 | Seal on both sides |
| Temperature Range | -30°C to 150°C |
| Lubrication | Oil or Grease |
| Tolerance Class | P4A better than P4 (ABEC-7) |
| Weight | 0.42 kg |
| Matched Arrangement | No |
| Universal Matching Bearing | No |
| Preload | Not applicable |
| Load and Speed | Dynamic Radial Load | 42300 N |
| Static Radial Load | 31000 N |
| Reference Speed For Grease (r/min) | 17,000 rpm |
| Limiting Speed For Oil(r/min) | 28,000 rpm |
What's the Performance Features of S7209 CD/P4A Bearing?
The S7209 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 S7209 CD/P4A Bearing?
The S7209 CD/P4A bearing, as a precision angular contact ball bearing, is known for its
high precision (P4A grade), high speed, and low vibration
characteristics, making it suitable for applications requiring
stable operation. Below are its typical application scenarios with
references:
1. Machine Tools
- Ideal for machine tool spindles, grinders, and CNC machining
centers.
- In motorized spindles, it reduces slippage and heat, enhancing
machining accuracy .
2. Industrial Equipment
- Used in AC welders, flash dryers, mesh belt furnaces, and cleaning
machines, supporting heavy loads and continuous operation .
- Its low vibration is perfect for plastic/rubber machinery and lab
mixers, reducing impurity interference during mixing .
3. Aerospace
- Trusted in aerospace for high rigidity and long life under extreme
conditions .
4. Motors and Drives
- Suitable for high-speed motor spindles, including variable
frequency and servo motors. Maintenance-free sealed designs lower
upkeep costs .
| 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 |
