71900 CE/P4ADGA
71900 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
71900 CE/P4ADGA
Basic Information
System of measurement
Metric
Weight
0.018 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
22 mm
Outside diameter tolerance
-0.004mm to 0
Width
12 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
3.175 mm
Ball quantity
11
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
731 lbf
Radial static load rating
351 lbf
Limiting speed
185 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
In Stock
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71900 CE/P4ADGA Bearing Product Overview & Core Advantages
The 71900 CE/P4ADGA is a super-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. Operating under the P4A tolerance class, this metric bearing features an Extra Light (A) preload and is Universal Matchable (SU), allowing for flexible mounting configurations in pairs. Its primary advantages include superior running accuracy, excellent high-speed capability due to its phenolic cage, and the ability to handle combined loads efficiently.
71900 CE/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
The model number 71900 CE/P4ADGA is decoded as follows:
- 71900: Basic series designation for a super-precision, miniature angular contact ball bearing.
- C: Represents a 15° contact angle, optimized for high-speed applications and combined radial and axial loads.
- E: Indicates an optimized internal design for enhanced performance and lower noise.
- P4A: Denotes an extremely high tolerance class (superior to ABEC 7), ensuring exceptional dimensional and running accuracy.
- DGA: Specifies the preload classification. In this case, it corresponds to an Extra Light preload (Class A).
71900 CE/P4ADGA Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: Manufactured to P4A tolerance standards with an Extra Light preload, this bearing provides exceptional rotational accuracy and system rigidity, minimizing deflection under load.
- Superior High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the 15° contact angle and optimized internal geometry contribute to a high limiting speed of 185,000 rpm.
- Combined Load Capacity: As an angular contact ball bearing, it is engineered to support significant combined radial and axial loads simultaneously.
- Universal Matchability (SU): Bearings are universally matchable, meaning any two bearings can be paired in a back-to-back (DB), face-to-face (DF), or tandem (DT) arrangement without selective assembly, simplifying installation and inventory.
- Pre-Lubricated: The bearing comes pre-lubricated, ensuring immediate operational readiness and reliable performance within its specified temperature range of -30°C to 110°C.
71900 CE/P4ADGA Bearing Typical Application Areas
This high-precision bearing is ideally suited for demanding applications where speed, accuracy, and reliability are paramount. Key industries and equipment include:
- High-Speed Spindles in CNC machining centers, grinding machines, and PCB drilling machines.
- Precision Instrumentation such as optical encoders, medical devices, and laboratory equipment.
- Robotics and automation systems, particularly in high-precision joint and arm assemblies.
- Aerospace & Defense components including gyroscopes, navigation systems, and auxiliary power units.
