S7208 ACD/HCP4A 40*80*18 mm Super Precision High Capacity Single
Row Angular Contact Ball Bearing Hybrid Bearings Ceramic Balls
Super-precision, high-capacity, single row angular contact ball
bearing with balls with seals
The S7208 CD/HCP4A 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. 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 | S7208 ACD/HCP4A |
| 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 | Hybrid (Chrome Steel Rings, Ceramic Balls) |
| 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 | 0.33 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) | 19,000 rpm |
| Limiting Speed For Oil(r/min) | 32,000 rpm |
What's the Performance Features of S7208 ACD/HCP4A Bearing?
The S7208 ACD/HCP4A 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/HCP4A Bearing?
The S7208 ACD/HCP4A bearing, a precision angular contact ball
bearing , is primarily designed for high-precision and high-speed
industrial applications. Its application areas can be summarized as
follows:
1. Machine Tools
Spindles: High rigidity and speed (up to 19,000 r/min with grease),
suitable for lathes, milling machines, and grinding machines.
2. Automation and Precision Instruments
Lab Equipment: Low vibration and high accuracy for mixers, optical scanners, and
measuring instruments.
Robot Joints: Precision components for industrial robots and welding equipment.
3. Power Transmission and Motors
High-Speed Motors: Supports very high speeds (up to 95,000 r/min with grease) for
motor spindles.
Gearboxes: Used in machine tool gearboxes and printing machinery.
4. Special Industrial Equipment
Drying Equipment: For flash dryers and rotary dryers, handling high temperatures
and continuous operation.
Fluid Machinery: Suitable for water pumps and air compressors under medium axial
and radial loads.
5. Other Fields
Automotive Testing: High-frequency motors and vehicle shock absorber test benches.
Medical Devices: Precision dental drills and centrifuges.
| 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 |
