71916 ACDGA/HCP4AL
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71916 ACDGA/HCP4AL
Basic Information
System of measurement
Metric
Weight
0.32 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
80 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
110 mm
Outside diameter tolerance
-0.004mm to 0
Width
16 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
27
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
7762 lbf
Radial static load rating
8212 lbf
Limiting speed
17 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
3
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
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In Stock
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71916 ACDGA/HCP4AL Bearing Product Overview & Core Advantages
The 71916 ACDGA/HCP4AL is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This single bearing features an extra light preload (Class A) and is manufactured to P4A tolerance class, ensuring ultra-precise rotational characteristics. Its 25° contact angle is optimized to handle significant combined loads—both radial and axial—simultaneously. The use of ceramic balls and a phenolic cage contributes to its capabilities as a high-speed bearing, allowing for a limiting speed of 17,000 rpm. This design offers superior rigidity and operational reliability in compact installations.
71916 ACDGA/HCP4AL Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| AC | Angular Contact design with a 25° contact angle. |
| D | High-Precision, Double-Row Design. |
| GA | Universal Matchable (SU) bearing in a set of 3. |
| HC | Hybrid Ceramic construction (Ceramic balls, Steel rings). |
| P4A | Super Precision Tolerance Class. |
71916 ACDGA/HCP4AL Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The double-row angular contact design provides a robust, rigid structure capable of supporting high combined loads from multiple directions, ensuring stable operation under demanding conditions.
- Superior High-Speed Performance: The combination of lightweight ceramic balls and a phenolic resin cage significantly reduces centrifugal forces and friction, enabling stable operation at the high limiting speed of 17,000 rpm.
- Exceptional Precision: Manufactured to P4A tolerance class with tight dimensional control on the bore diameter (80 mm), outside diameter (110 mm), and width (16 mm), this bearing guarantees minimal runout and vibration for ultra-precise applications.
- Optimized for Matched Sets: As a Universal Matchable (SU) bearing supplied in a set of 3, it allows for precise preload configuration in complex spindle arrangements, maximizing system stiffness and lifespan.
71916 ACDGA/HCP4AL Bearing Typical Application Areas
This high-precision angular contact ball bearing is ideally suited for applications where extreme accuracy, high speed, and reliability are paramount. Key industries and equipment include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Robotics: In robotic arm joints and gears requiring high rigidity and positional accuracy.
- Aerospace & Defense Systems: In gyroscopes, navigation systems, and other critical instrumentation.
- High-Frequency Motors and Spindles: Where low friction, heat resistance, and high rotational speeds are essential.
