71916 ACDGC/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71916 ACDGC/HCP4A
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
Moderate / Class C
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
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In Stock
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71916 ACDGC/HCP4A Bearing Product Overview & Core Advantages
The 71916 ACDGC/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional rotational accuracy and rigidity. This single-row bearing features a 25° contact angle and is supplied as part of a universally matchable set, allowing for flexible arrangements to support combined loads. Its construction with ceramic balls and a phenolic cage enables superior high-speed performance and thermal stability, making it an ideal solution for high-reliability, precision machinery.
71916 ACDGC/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
The model number 71916 ACDGC/HCP4A provides detailed technical specifications:
- 71916: Basic series designation, indicating a metric, light series angular contact bearing with 80mm bore.
- AC: Angular Contact design.
- D: High contact angle (25°).
- GC: Specific internal clearance and preload designation (Moderate / Class C).
- HCP4A: P4A tolerance class, denoting extremely high dimensional and running accuracy.
71916 ACDGC/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The optimized 25° contact angle provides excellent resistance to combined radial and axial loads.
- Superior High-Speed Capability: The combination of lightweight ceramic balls and a phenolic resin cage reduces centrifugal forces and ensures stable operation at the high limiting speed of 17,000 rpm.
- Precision Performance: Manufactured to P4A tolerance class, this bearing guarantees minimal runout and vibration, which is critical for precision spindles.
- Universal Matchability (SU): Bearings are universally matchable, meaning any bearing in the set can be mounted adjacent to any other to form duplex pairs (DB, DF, DT) without pre-load loss, offering immense flexibility in application design.
71916 ACDGC/HCP4A Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Equipment
- Aerospace Control Systems
- Medical and Dental Handpieces
