S71916 ACDGB/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S71916 ACDGB/HCP4A
Basic Information
System of measurement
Metric
Weight
0.32 kg
Tolerance class
P4A
Seal type
Sealed
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
28 X 1000 rpm
Lubrication
Grease
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
Ceramic
Cage material
Phenolic
Technical Drawings
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In Stock
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S71916 ACDGB/HCP4A Bearing Product Overview & Core Advantages
The S71916 ACDGB/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. This single bearing is part of a universally matchable (SU) set, allowing for precise preload adjustment when paired with a second, identical bearing. Its core advantages include the ability to accommodate combined loads (radial and axial) simultaneously, facilitated by a 25° contact angle. Manufactured to a P4A tolerance class and featuring a phenolic cage, it is engineered for high-speed operation and superior performance in high-rigidity systems.
S71916 ACDGB/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle. |
| GB | Indicates a Light Preload (Class B) for optimized rigidity and minimal friction. |
| HC | Hybrid Ceramic: Features ceramic balls for reduced weight, lower friction, and enhanced high-speed performance. |
| P4A | Denotes an ultra-high precision tolerance class, exceeding ABEC 7 standards, for exceptional running accuracy. |
S71916 ACDGB/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The angular contact design and light preload provide high system rigidity, enabling the bearing to effectively handle significant combined radial and axial loads.
- Superior High-Speed Performance: The combination of a lightweight phenolic cage and hybrid ceramic balls significantly reduces centrifugal forces and operating temperatures, allowing for a high limiting speed of 28,000 rpm.
- Enhanced Durability and Longevity: Ceramic balls are electrically insulating and highly resistant to wear and degradation, leading to a longer service life, especially in challenging environments.
- Precision Engineering: Manufactured to P4A tolerances with tight dimensional control on the bore diameter, outside diameter, and width, ensuring predictable performance and smooth operation.
S71916 ACDGB/HCP4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications where precision, speed, and reliability are paramount. Key industries and equipment include:
- Machine Tool Spindles
- High-Frequency Machining Centers
- Precision Grinding Spindles
- High-Speed Motors and Drives
- Aerospace and Defense Systems
- Medical and Dental Equipment
