7000 CD/P4ADBC
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7000 CD/P4ADBC
Basic Information
System of measurement
Metric
Weight
0.038 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
Moderate / Class C
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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7000 CD/P4ADBC Bearing Product Overview & Core Advantages
The 7000 CD/P4ADBC is a precision duplex angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This matched back-to-back (DB) arrangement provides superior stability and can accommodate combined radial and axial loads from both directions. Manufactured to P4A tolerance class and featuring a moderate preload (Class C), it delivers high running accuracy, reduced vibration, and optimal performance in high-speed, high-precision machinery.
7000 CD/P4ADBC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7000 C | Basic bearing series with a 15° contact angle. |
| D | Indicates a duplex pair of bearings. |
| P4A | Denotes high precision tolerance class (superior to ABEC 7). |
| DB | Specifies the Back-to-Back mounting arrangement for high moment rigidity. |
| C | Indicates a moderate preload for optimal stiffness and speed performance. |
7000 CD/P4ADBC Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex back-to-back (DB) design creates a large spread between load centers, significantly increasing the bearing's resistance to moment loads and providing exceptional system rigidity.
- Superior Load Capacity: The angular contact design with a 15° contact angle efficiently handles combined radial and axial loads from both directions simultaneously.
- High-Speed Performance: The lightweight phenolic resin cage ensures stable operation and low centrifugal forces, contributing to the high limiting speed of 185,000 rpm.
- Precision & Accuracy: Manufactured to P4A tolerance class with a pre-applied preload, this bearing guarantees high running accuracy, minimal run-out, and consistent performance in precision applications.
- Durable Construction: Components made from chrome steel provide high fatigue life and wear resistance, ensuring long-term reliability.
7000 CD/P4ADBC Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles for CNC milling and grinding machines
- High-Frequency Spindles
- Precision Grinding Equipment
- High-Speed Automation & Robotics
- Medical and Dental Handpiece Drives
