7000 CDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7000 CDGA/HCP4A
Basic Information
System of measurement
Metric
Weight
0.017 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
8 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
922 lbf
Radial static load rating
374 lbf
Limiting speed
185 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
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
7000 CDGA/HCP4A Bearing Product Overview & Core Advantages
The 7000 CDGA/HCP4A is a single-row angular contact ball bearing engineered for ultra-high precision and performance. Positioned for applications demanding exceptional rotational accuracy and speed, this bearing features a 15° contact angle and is supplied as a Universal Matchable (SU) set of two, allowing for precise preload configuration. Its core advantages include superior high-speed capability with a limiting speed of 185,000 rpm, enabled by a lightweight phenolic cage and ceramic balls, and an extra light preload (Class A) for minimal friction and optimal running accuracy in precision machinery.
7000 CDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7000 | Basic series designation, indicating a metric, single-row angular contact ball bearing. |
| CDGA | Signifies a Universal Matchable (SU) bearing supplied in a set of two, designed for extra light preload (Class A) when mounted together. |
| HCP4A | Indicates the tolerance class P4A, representing very high dimensional and running accuracy, and the use of hybrid ceramic balls for enhanced performance. |
7000 CDGA/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and silicon nitride (Si3N4) ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and extends service life, especially in high-speed applications.
- Phenolic Resin Cage: The lightweight and robust phenolic cage contributes to excellent high-speed stability and low friction, supporting the bearing's 185,000 rpm limiting speed.
- Ultra-Precision P4A Tolerance: Manufactured to ABEC 7 / P4A precision standards, this bearing ensures minimal runout and vibration, which is critical for maintaining accuracy in spindle systems.
- Optimized for Matched Sets: As a Universal Matchable (SU) pair, these bearings are designed to be mounted together to achieve a defined extra light preload, maximizing system rigidity and rotational accuracy without manual adjustment.
7000 CDGA/HCP4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications where speed, precision, and reliability are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- Aerospace & Defense: Gyroscopes, navigation systems, and auxiliary power units.
- Medical Equipment: Dental handpieces, high-speed centrifuges.
