71926 ACD/P4ADGA
71900 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
71926 ACD/P4ADGA
Basic Information
System of measurement
Metric
Weight
3.1 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
130 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
180 mm
Outside diameter tolerance
-0.004mm to 0
Width
48 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
15.875 mm
Ball quantity
27
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
31500 lbf
Radial static load rating
45900 lbf
Limiting speed
7.5 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
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1563.55
/ each
In Stock
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71926 ACD/P4ADGA Bearing Product Overview & Core Advantages
The 71926 ACD/P4ADGA is a high-precision angular contact ball bearing engineered for applications demanding exceptional accuracy and rigidity. This universal matchable (SU) bearing is designed to accommodate combined loads, handling significant radial loads and axial loads in one direction simultaneously. Its P4A tolerance class ensures ultra-precise running accuracy, making it ideal for high-speed spindles and other high-reliability machinery. The pre-lubricated design and phenolic cage contribute to its superior performance in demanding operational environments.
71926 ACD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Contact Angle of 25° and High-Precision Design |
| P4A | Super Precision Tolerance Class (Equivalent to ABEC 7) |
| DG | Universal Matchable (SU) arrangement. Two bearings are supplied as a matched set. |
| A | Specific internal design and Extra Light Preload |
71926 ACD/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The 25° contact angle and robust construction enable the bearing to support high combined loads, providing stable and rigid support for spindles and shafts.
- Superior High-Speed Performance: The lightweight phenolic cage minimizes centrifugal forces, allowing for a high limiting speed of 7,500 rpm. This makes it an excellent high-speed bearing solution.
- Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls on the bore diameter, outside diameter, and width, ensuring minimal runout and vibration for ultra-smooth operation.
- Optimized for Matched Sets: As a Universal Matchable (SU) bearing supplied in a set of two, it simplifies installation and ensures pre-defined performance characteristics when mounted in a back-to-back or face-to-face arrangement.
71926 ACD/P4ADGA Bearing Typical Application Areas
This precision bearing is typically specified in high-performance machinery, including:
- Machine Tool Spindles (e.g., CNC milling, grinding)
- High-Frequency Motors
- Precision Instrumentation
- Aerospace Components
- Medical Equipment Spindles
