706 CDGA/P4A
Miniature Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
706 CDGA/P4A
Basic Information
System of measurement
Metric
Weight
0.006 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
6 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
17 mm
Outside diameter tolerance
-0.004mm to 0
Width
6 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
3.175 mm
Ball quantity
8
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
457 lbf
Radial static load rating
172 lbf
Limiting speed
140 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
4
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 50.17
/ each
In Stock
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706 CDGA/P4A Bearing Product Overview & Core Advantages
The 706 CDGA/P4A is a single-row angular contact ball bearing engineered for ultra-high precision applications. Positioned in the P4A tolerance class, it delivers exceptional running accuracy and dimensional stability. Its core advantage lies in its ability to support combined loads (radial and axial) efficiently, making it ideal for arrangements requiring high-speed operation and superior rotational precision. The extra light preload (Class A) minimizes deflection under light loads, ensuring smooth, quiet, and precise performance in demanding machinery.
706 CDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 706 | Basic bearing designation. |
| C | Specifies a 15° contact angle, optimized for high-speed performance and moderate axial load capacity. |
| DG | Indicates the bearing is Universal Matchable (SU). Two bearings can be mounted in a face-to-face (DF) or back-to-back (DB) arrangement to support combined loads from both directions. |
| A | Denotes an Extra Light Preload (Class A), which enhances rigidity and minimizes runout in high-precision systems. |
| /P4A | Specifies the tolerance class P4A, representing extremely tight dimensional and running accuracy tolerances superior to ABEC 7. |
706 CDGA/P4A Bearing Structural Features & Performance Benefits
- High-Precision Design: Manufactured to P4A tolerance class with a phenolic resin cage, this bearing ensures minimal vibration and exceptional running accuracy, which is critical for high-speed spindles.
- Optimized Load Capacity: The 15° contact angle and high-grade chrome steel construction provide an excellent balance, enabling the bearing to handle significant combined radial and axial loads.
- Superior High-Speed Performance: The lightweight phenolic cage and optimized internal geometry contribute to a high limiting speed of 140,000 rpm, reducing centrifugal forces and heat generation.
- Universal Matching Capability: As a Universal Matchable (SU) bearing, it can be precision-paired with another identical bearing in pre-set arrangements (DF or DB) to create a stiff, preloaded system capable of withstanding complex load scenarios.
706 CDGA/P4A Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications where precision and speed are paramount. Key industries and equipment include:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Robotic Drives and Actuators
- High-Frequency Motors and Spindles
- Medical and Dental Equipment (e.g., High-speed handpieces)
- Aerospace Instrumentation and Guidance Systems
