7000 CD/HCP4ADBA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7000 CD/HCP4ADBA
Basic Information
System of measurement
Metric
Weight
0.034 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
10 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
26 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
9
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
1492 lbf
Radial static load rating
731 lbf
Limiting speed
185 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
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
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7000 CD/HCP4ADBA Bearing Product Overview & Core Advantages
The 7000 CD/HCP4ADBA is a premium metric duplex angular contact ball bearing designed for ultra-high precision applications requiring exceptional rotational accuracy and rigidity. This precision bearing features a back-to-back (DB) matched arrangement and is preloaded to Extra Light / Class A specifications, ensuring minimal axial and radial runout for superior performance in high-speed spindles and precision machinery. Its construction with ceramic balls and a phenolic cage enables outstanding high-speed performance and thermal stability, making it ideal for demanding applications where reliability and accuracy are paramount.
7000 CD/HCP4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CD | Indicates a duplex bearing with a back-to-back (DB) mounting arrangement. |
| HC | Signifies the use of Hybrid Ceramic balls (Silicon Nitride), offering reduced weight, lower friction, and higher speed capability. |
| P4A | Denotes an ultra-high precision tolerance class (superior to ABEC 7), ensuring extremely tight dimensional and running accuracy. |
| DB | Specifies the back-to-back duplex mounting, which provides high moment rigidity and excellent stability under complex loads. |
| A | Indicates the Extra Light preload level, optimized for high-speed operation with minimal friction and heat generation. |
7000 CD/HCP4ADBA Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex back-to-back (DB) design creates a rigid bearing system that effectively resists moment loads and shaft deflection, providing exceptional stiffness for precision machining and positioning.
- Superior High-Speed Capability: The combination of hybrid ceramic balls and a lightweight phenolic resin cage significantly reduces centrifugal forces and inertial mass, enabling a high limiting speed of 185,000 rpm. This design also minimizes friction and heat buildup.
- Enhanced Precision & Longevity: Manufactured to P4A tolerance class with a 15° contact angle, this bearing guarantees ultra-precise rotation. The ceramic balls are non-conductive and highly resistant to wear and corrosion, contributing to a longer service life.
- Optimized for Combined Loads: As an angular contact ball bearing, it is engineered to support substantial combined radial and axial loads simultaneously, making it suitable for complex load conditions.
7000 CD/HCP4ADBA Bearing Typical Application Areas
This bearing is specifically engineered for the most demanding high-precision and high-speed applications, including:
- Machine Tool Spindles: High-speed CNC milling, grinding, and turning centers.
- Precision Spindles: PCB drilling spindles, high-frequency motor spindles.
- Medical & Dental Equipment: High-speed handpieces and surgical tools.
- Aerospace & Defense Systems: Gyroscopes, navigation instruments, and avionics.
- Robotics & Automation: High-accuracy robotic arms and precision actuators.
