71914 ACB/HCP4ADT
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71914 ACB/HCP4ADT
Basic Information
System of measurement
Metric
Weight
0.66 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
70 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
100 mm
Outside diameter tolerance
-0.004mm to 0
Width
32 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
32
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
4770 lbf
Radial static load rating
5310 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Tandem (DT)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
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71914 ACB/HCP4ADT Bearing Product Overview & Core Advantages
The 71914 ACB/HCP4ADT is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This duplex tandem (DT) arrangement is preloaded and supplied as a matched pair, delivering superior high rigidity and the ability to handle significant combined loads. Featuring a phenolic cage and ceramic balls, it is engineered for high-speed operation and extended service life in precision machinery.
71914 ACB/HCP4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71914 | Basic bearing series and size designation (70mm bore, 100mm OD). |
| ACB | Angular Contact Bearing with a 25° contact angle. |
| HCP4A | Indicates a P4A tolerance class for ultra-high precision and a phenolic (HCP) cage. |
| DT | Duplex Tandem arrangement. Two bearings are mounted together in a tandem configuration to increase axial load capacity in one direction. |
71914 ACB/HCP4ADT Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex tandem (DT) arrangement with preload provides exceptional system stiffness, enabling the bearing to withstand heavy combined loads (radial and axial) with minimal deflection.
- High-Speed Performance: The lightweight phenolic cage and low-density ceramic balls reduce centrifugal forces, allowing for a high limiting speed of 28,000 rpm.
- Precision Operation: Manufactured to P4A tolerance class, this bearing ensures extremely tight running accuracy, low noise, and low vibration for critical spindles.
- Durability & Temperature Resistance: The phenolic cage offers good dimensional stability and can withstand the operational temperature range from -30°C to 110°C.
71914 ACB/HCP4ADT Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications where precision, speed, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing machines.
- High-Frequency Motors: Spindles for electric motors requiring high rotational accuracy.
- Aerospace & Defense Systems: Gyroscopes and other precision instrumentation.
