7207 ACD/P4ADGB
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7207 ACD/P4ADGB
Basic Information
System of measurement
Metric
Weight
0.57 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
35 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
72 mm
Outside diameter tolerance
-0.004mm to 0
Width
34 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
13
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
11115 lbf
Radial static load rating
9338 lbf
Limiting speed
41 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Light / Class B
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:
$ 162.17
/ each
In Stock
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7207 ACD/P4ADGB Bearing Product Overview & Core Advantages
The 7207 ACD/P4ADGB is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a universal matchable (SU) bearing supplied in a pre-set pair, it is engineered to accommodate combined loads—significant radial and axial loads in both directions—simultaneously. Its P4A super-precision tolerance and light preload (Class B) ensure smooth, quiet operation with minimal runout, making it ideal for high-speed spindles and other high-performance machinery where high rigidity and positional accuracy are critical.
7207 ACD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7207 | Basic bearing series, indicating a 35 mm bore, 72 mm OD, and 34 mm width. |
| AC | Angular Contact design with a 25° contact angle for optimal axial load capacity. |
| D | Signifies two bearings supplied as a universal matchable (SU) set for simplified mounting and preload control. |
| P4A | Super Precision Tolerance Class, exceeding ABEC 7 standards, for applications requiring extreme running accuracy. |
| DGB | Indicates a light preload (Class B) is applied to the matched set, enhancing system rigidity and reducing vibration. |
7207 ACD/P4ADGB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double bearing arrangement and 25° contact angle create a highly rigid support system capable of handling demanding combined radial and axial loads from any direction.
- Precision & High-Speed Performance: Manufactured to P4A tolerance and featuring a lightweight phenolic resin cage, this bearing achieves a high limiting speed of 41,000 rpm with excellent stability and low heat generation.
- Universal Matchability (SU): The bearings are universally matchable, allowing any two bearings to be paired in any combination (face-to-face, back-to-back, or tandem) without loss of preload, offering immense design flexibility.
- Optimized Material Selection: Constructed from high-grade chrome steel for rings and balls, ensuring long service life and consistent performance under the specified temperature range of -30°C to 110°C.
7207 ACD/P4ADGB Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, semiconductor manufacturing equipment.
- High-Frequency Motors: Spindles for routers and other high-RPM machinery.
- Medical Equipment: Dental handpieces and precision laboratory instruments.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and navigation equipment.
