7000 CE/HCPA9ADGA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7000 CE/HCPA9ADGA
Basic Information
System of measurement
Metric
Weight
0.034 kg
Tolerance class
PA9A
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
3.969 mm
Ball quantity
11
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
1098 lbf
Radial static load rating
531 lbf
Limiting speed
185 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
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7000 CE/HCPA9ADGA Bearing Product Overview & Core Advantages
The 7000 CE/HCPA9ADGA is a high-precision angular contact ball bearing engineered for superior performance in demanding applications. Its defining characteristic is the 15° contact angle and universal matchable (SU) design, allowing two bearings to be paired in a back-to-back (DB), face-to-face (DF), or tandem (DT) arrangement to optimize stiffness and load handling. Manufactured to an exceptionally tight PA9A tolerance class, this bearing delivers unmatched running accuracy. The combination of a ceramic ball and phenolic cage enables extremely high-speed operation up to 185,000 rpm, while the extra light preload (Class A) ensures smooth, precise rotation with minimal friction and heat generation.
7000 CE/HCPA9ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7000 CE | Basic bearing series designation (10mm bore, 26mm OD, 16mm width). |
| H | Indicates the use of high-grade Ceramic (Si3N4) balls. |
| C | Refers to the Phenolic (Polyamide) cage material. |
| PA9A | Specifies the ultra-high precision tolerance class (exceeding ABEC 9). |
| DGA | Denotes a Universal Matchable (SU) bearing supplied with Extra Light Preload (Class A). |
7000 CE/HCPA9ADGA Bearing Structural Features & Performance Benefits
- High-Speed & High-Rigidity Design: The phenolic cage offers excellent strength-to-weight ratio and is self-lubricating, reducing centrifugal forces and friction at ultra-high speeds. Combined with lightweight ceramic balls, this significantly lowers the bearing's moment of inertia, enabling stable operation at the limiting speed of 185,000 rpm.
- Precision & Load Capacity: The 15° contact angle is optimized to handle combined radial and axial loads simultaneously. The PA9A tolerance ensures minimal runout and vibration, which is critical for applications requiring extreme positional accuracy.
- Universal Matching Capability (SU): This feature allows for the creation of stiff, preloaded bearing sets from two individual bearings. This is essential for applications like machine tool spindles where high rigidity and precise shaft positioning are mandatory.
- Extended Service Life: The open design allows for efficient lubrication management. Ceramic balls are harder and smoother than steel, reducing wear and providing longer service life, especially in high-speed and potentially corrosive environments.
7000 CE/HCPA9ADGA Bearing Typical Application Areas
This bearing is specifically designed for the most demanding high-precision and high-speed machinery, including:
- Machine Tool Spindles: High-speed milling, grinding, and drilling spindles.
- Precision Robotics: Joints and arms requiring high accuracy and rapid movement.
- Aerospace & Defense Systems: Gyroscopes, navigation instruments, and auxiliary power units.
- High-Frequency Motors & Spindles: Motors for PCB drilling and dental handpieces.
