S7208 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 with seals
The S7208 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 | S7208 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 | Seal on both sides |
| Temperature Range | -30°C to 150°C |
| Lubrication | Grease |
| Tolerance Class | P4A better than P4 (ABEC-7) |
| Weight | 0.38 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 S7208 ACD/P4A Bearing?
The S7208 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 S7208 ACD/P4A Bearing?
The S7208 ACD/P4A is designed for high-precision, high-speed, and
high-rigidity applications. Its application areas can be summarized
as follows:
1. Machine Tools
CNC Machines: Provides rigidity and precision for high-speed cutting.
Machining Centers: Ensures low vibration and heat during processing.
Grinding/Milling Machines: Enhances surface quality and efficiency.
2. Industrial Machinery
Plastic/Rubber Equipment: High-temperature and high-load components like injection molding
machines.
Drying/Mixing Equipment: Continuous operation in flash dryers and rotary dryers.
Welding Equipment: Supports high-frequency vibration in welders.
3. Precision Instruments
Lab Instruments: Low noise and stability for centrifuges and optical devices.
Printing/Packaging Machines: Precise transmission for high-speed printing and binding.
4. Other Fields
Food Processing: Corrosion-resistant designs for sorting and packaging.
Wind Power: Reliable components for pitch systems and gearboxes.
| 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 |
