7008 ACD/HCP4A Super Precision Single Row Angular Contact Ball Bearing
7008 ACD/HCP4A 40*68*15 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing Hybrid Ceramic Balls High Speed
Super-precision, high-capacity D design, single row angular contact ball bearing
The 7008 ACD/HCP4A bearing,bore diameter is 40 mm, outside diameter is 68 mm,width is 15 mm,featuring precise dimensions, high static load capacity, P4A precision grade, and hybrid ceramic balls, delivers superior performance and reliability for applications requiring high rotational accuracy and stability.
| Part Number | 7008 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) | 68 mm | |
| Outer Bore Diameter Tolerance | -0.007mm to 0 | |
| Width (B) | 15 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 | Open | |
| Temperature Range | -30°C to 150°C | |
| Lubrication | Grease or Oil | |
| Tolerance Class | P4A better than P4 | |
| Weight | 0.17 kg | |
| Matched Arrangement | No | |
| Universal Matching Bearing | No | |
| Preload | Not applicable | |
| Load and Speed | Dynamic Radial Load | 15900 N |
| Static Radial Load | 10400 N | |
| Reference Speed For Grease (r/min) | 22,000 rpm | |
| Limiting Speed For Oil(r/min) | 34,000 rpm | |

What's the Performance Features of 7008 ACD/HCP4A Bearing?
The 7008 ACD/HCP4A bearing, engineered for high-performance applications, features P4A grade precision, an angular contact design for handling significant radial and axial loads. Optimized for high-speed operation with minimal vibration, it offers smooth, quiet performance and is constructed from premium materials to ensure durability and longevity. This bearing maintains high precision during operation, making it ideal for critical applications in machine tools, automation, aerospace, medical devices, and other industries requiring exceptional accuracy and reliability.
What's the Applications of the 7008 ACD/HCP4A Bearing?
The 7008 ACD/HCP4A bearing, as a precision angular contact ball bearing, is widely used in various industrial fields due to its high-speed capability, high load capacity, and hybrid ceramic design. Specific applications include:
1. Plastic and Rubber Processing Equipment
- Used in high-precision transmission and support for equipment such as plastic extruders, blow molding machines, color mixers, and injection molding machines.
- Found in rubber machinery like cutting presses and pressure testing machines, suitable for high-temperature and high-load environments.
2. Printing and Packaging Machinery
- Widely applied in precision printing equipment such as plastic printing machines, computer embroidery machines, pick-and-place machines, and plate punching machines, ensuring stable operation at high speeds.
3. Metalworking and Industrial Equipment
- Used in metalworking scenarios such as drilling rigs, gear hobbing machines, shearing machines, and dustproof fabric equipment.
- Provides high-rigidity support in welding equipment like AC welders, electric welders, and manual welders.
4. Environmental Protection and Energy Equipment
- Used in environmental protection equipment such as waste incinerators and gravity spray guns, suitable for high-temperature and corrosive environments.
- Handles high-temperature loads in energy-related machinery like copper smelting equipment and mesh belt furnaces.
5. Electronics and Precision Instruments
- Meets the demands of high speed and low friction in precision instruments such as electronic component forming machines, laboratory mixing equipment, and high-frequency motors.
- Relied upon in machine tool spindles and vibration meters for its high precision and preload design.
6. Food and Chemical Machinery
- Suitable for complex working conditions in chemical equipment such as frozen food processing machines, seasoning processing machines, and flash dryers.
7. General Industrial Applications
- Provides reliable transmission support in general machinery like continuously variable transmissions (CVTs), fabric inspection machines, crushing equipment, and reducers.
| 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 |
If you need more detailed information , feel free to ask!
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.

