71900 ACEGB/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
71900 ACEGB/P4A
Basic Information
System of measurement
Metric
Weight
0.009 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
6 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
3.175 mm
Ball quantity
11
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
439 lbf
Radial static load rating
169 lbf
Limiting speed
165 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
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
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In Stock
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71900 ACEGB/P4A Bearing Product Overview & Core Advantages
The 71900 ACEGB/P4A is a metric single row angular contact ball bearing designed for high-precision and high-speed applications. Engineered with a P4A super precision tolerance and a light preload (Class B), it delivers exceptional running accuracy and rotational stability. Its 25° contact angle is optimized to support significant combined loads, effectively handling both radial and axial forces. The bearing features a phenolic resin cage and comes pre-lubricated, making it ready for immediate installation in demanding, precision-critical systems.
71900 ACEGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71900 | Basic bearing series and size designation (10mm bore, 22mm OD). |
| AC | Angular Contact design. |
| E | Optimized internal design for enhanced load capacity. |
| GB | Specifies a light preload (Class B) for reduced friction and heat generation. |
| /P4A | Denotes a super precision tolerance class, ensuring extreme dimensional and running accuracy. |
71900 ACEGB/P4A Bearing Structural Features & Performance Benefits
- High-Speed Capability: The lightweight phenolic cage minimizes centrifugal forces, enabling stable operation up to the limiting speed of 165,000 rpm.
- Precision & Rigidity: The P4A tolerance class and light preload provide superior rotational accuracy and system rigidity, critical for minimizing vibration and deflection.
- Optimized Load Capacity: The 25° contact angle and optimized internal geometry allow the bearing to efficiently support combined radial and axial loads.
- Universal Matching (SU): This bearing is universally matchable, allowing for precise arrangement in pairs (back-to-back or face-to-face) to support complex load configurations without additional selection or machining.
- Material Integrity: Manufactured from high-grade chrome steel for rings and balls, ensuring high durability and a long service life under demanding conditions.
71900 ACEGB/P4A Bearing Typical Application Areas
This precision bearing is ideally suited for applications requiring high speed, accuracy, and rigidity, including:
- Machine Tool Spindles
- High-Frequency Spindles for PCB drilling and milling
- Precision Grinding Spindles
- High-Speed Motors
- Robotic Arm Joints and precision gearboxes
- Medical and Dental Handpieces
