7001 CD/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7001 CD/HCP4ADGA
Basic Information
System of measurement
Metric
Weight
0.036 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
12 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
28 mm
Outside diameter tolerance
-0.004mm to 0
Width
16 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
10
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
1638 lbf
Radial static load rating
855 lbf
Limiting speed
110 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7001 CD/HCP4ADGA Bearing Product Overview & Core Advantages
The 7001 CD/HCP4ADGA is a high-precision angular contact ball bearing engineered for applications demanding exceptional accuracy and performance. This universal matchable (SU) bearing is designed to accommodate combined loads (radial and axial) simultaneously. Its defining features include a P4A super-precision tolerance class, a ceramic ball construction, and an extra light preload (Class A). This combination delivers superior high-speed capability, excellent running accuracy, and long service life, making it ideal for the most demanding high-precision spindles and machinery.
7001 CD/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning | Advantage |
|---|---|---|
| CD | 15° contact angle and high-precision construction. | Optimized for high-speed operation and rigid support. |
| HC | Hybrid Ceramic (Silicon Nitride balls). | Reduced friction, lower operating temperature, and extended service life at high speeds. |
| P4A | Super Precision Tolerance Class. | Guarantees extreme running accuracy and minimal vibration for ultra-precise applications. |
| DGA | Universal Matchable (SU designation). | Allows for flexible mounting in pairs (back-to-back, face-to-face, or tandem) without selective assembly to achieve the desired preload and stiffness. |
7001 CD/HCP4ADGA Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The use of silicon nitride (ceramic) balls with a chrome steel ring significantly reduces centrifugal forces, lowers friction, and enables higher limiting speeds. This construction also provides superior resistance to wear and a longer operational lifespan.
- Phenolic Resin Cage: The lightweight and robust phenolic cage ensures excellent guidance and stability of the ceramic balls at very high rotational speeds, contributing to smooth and quiet operation.
- Precision & Rigidity: Manufactured to P4A tolerance class with an extra light preload, this bearing offers exceptional running accuracy and minimal deflection, which is critical for maintaining precision in machining and positioning.
- Universal Matchability (SU): This feature simplifies installation and inventory management, as any two bearings can be paired to form a pre-loaded set, delivering high system rigidity and optimal performance.
7001 CD/HCP4ADGA Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications where precision, high speed, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Instrumentation: Measuring machines, optical scanners, and laboratory equipment.
- High-Frequency Spindles: PCB drilling and routing spindles.
- Robotics: High-accuracy joints and rotary actuators.
