719/5AC
Miniature Angular Contact Ball Bearings
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Part No.
Part No.
719/5AC
Basic Information
System of measurement
Metric
Weight
0.0024 kg
ABEC rating
P5(ABEC-5),P4(ABEC-13)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
5 mm
Outside diameter
13 mm
Width
5 mm
Contact angle
25 °
Performance
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Preload
Available
Materials
Ball material
Steel,Ceramic
Cage material
Nylon,Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
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719/5AC Bearing Product Overview & Core Advantages
The 719/5AC is a precision angular contact ball bearing designed for applications demanding high rotational accuracy and rigidity. Engineered with a 25° contact angle, this bearing excels at handling combined loads—simultaneously supporting significant radial forces and unidirectional axial thrust. Available in both sealed and open variants, and with options for preload and universal matchable (SU) arrangements, it offers exceptional versatility for high-speed and high-precision machinery. Its compact bearing dimensions (5mm bore, 13mm OD, 5mm width) make it ideal for space-constrained applications.
719/5AC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 719/5 | Precision series bearing with 5mm bore diameter. |
| AC | Angular Contact design with a 25° contact angle. |
| Sealed / Open | Configuration option: Sealed for contamination protection or Open for custom lubrication. |
| P5 / P4 (ABEC-5 / ABEC-13) | Precision class rating, with P4/ABEC-13 offering ultra-high running accuracy. |
| SU | Universal Matchable arrangement, allowing bearings to be paired in any combination for precise preload setting. |
719/5AC Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design and availability of preload enable superior stiffness, minimizing deflection under combined loads and ensuring precise shaft positioning.
- High-Speed Performance: Options for lightweight Nylon or Phenolic cages reduce centrifugal forces, while the optimized internal geometry facilitates stable operation at high rotational speeds.
- Precision Operation: Manufactured to ABEC P5/P4 tolerance classes, this bearing guarantees minimal runout and vibration, which is critical for applications requiring high rotational accuracy.
- Material & Lubrication Versatility: Available with standard Steel or high-performance Ceramic balls, and supplied lubricated for immediate use. The sealed version provides long-term lubrication retention and contamination exclusion.
- Compact & Lightweight: With a total weight of just 0.0024 kg, it contributes to lower system inertia and is perfectly suited for miniaturized and weight-sensitive designs.
719/5AC Bearing Typical Application Areas
This precision bearing is ideally suited for:
- High-Speed Spindles in CNC machining centers and PCB drilling machines
- Precision Instrumentation and optical positioning systems
- Medical Device Motors and dental handpieces
- Robotic Actuators and small precision gearboxes
- Aerospace Gyroscopes and navigation instruments
