707 CDGA/P4A
Miniature Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
707 CDGA/P4A
Basic Information
System of measurement
Metric
Weight
0.008 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
7 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
19 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
3.572 mm
Ball quantity
8
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
565 lbf
Radial static load rating
220 lbf
Limiting speed
170 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
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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Product Overview and Core Advantages
The 707 CDGA/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and performance. Engineered with Extra light preload (Class A) and manufactured to P4A tolerance class, this bearing delivers superior running accuracy and rotational stability. Its 15° contact angle is optimized to handle combined loads efficiently, making it an ideal solution for high-speed spindles and precision machinery where high rigidity and minimal runout are critical.
707 CDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CDGA | Universal Matchable bearing designed for duplex mounting (2 bearings in set) |
| P4A | Indicates super precision tolerance class for enhanced running accuracy |
Structural Features and Performance Benefits
- Precision Engineering: Manufactured to P4A tolerance standards with bore and OD tolerances of -0.004mm to 0, ensuring exceptional dimensional stability and minimal vibration.
- High-Speed Capability: Features a phenolic resin cage that reduces centrifugal forces, enabling stable operation at limiting speeds up to 170,000 rpm.
- Optimized Load Capacity: The 15° contact angle provides excellent performance under combined radial and axial loads, with dynamic load rating of 565 lbf and static load rating of 220 lbf.
- Universal Matching Design: As a Universal Matchable (SU) bearing, it can be paired in various preload configurations (back-to-back, face-to-face, or tandem) to achieve specific stiffness requirements.
- Premium Materials: Constructed from chrome steel for rings and balls, providing high wear resistance and durability in demanding applications.
707 CDGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles
- High-Speed Motors: Precision electric motors and servo drives
- Medical Equipment: Dental handpieces and surgical tools
- Aerospace Systems: Gyroscopes and navigation instruments
- Semiconductor Manufacturing: Wafer handling robots and precision positioning stages
