S71914 ACD/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71914 ACD/HCP4ADGA
Basic Information
System of measurement
Metric
Weight
0.57 kg
Tolerance class
P4A
Seal type
Sealed
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
9.525 mm
Ball quantity
24
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
11858 lbf
Radial static load rating
14400 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Grease
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 380.46
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S71914 ACD/HCP4ADGA Bearing Product Overview & Core Advantages
The S71914 ACD/HCP4ADGA is a super-precision double row angular contact ball bearing engineered for the most demanding high-speed and high-rigidity applications. Its core advantage lies in its ability to simultaneously support substantial combined loads (radial and bidirectional axial loads) with exceptional rotational accuracy. The combination of a ceramic ball material and P4A tolerance class ensures minimal thermal growth and outstanding operational stability, making it ideal for high-reliability, high-precision machinery where performance is critical.
S71914 ACD/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
The model number S71914 ACD/HCP4ADGA provides a detailed technical specification:
- S7: Indicates a series of high-precision, high-speed angular contact ball bearings.
- 1914: Denotes the bearing dimensions (Bore: 70mm, Outside Diameter: 100mm, Width: 32mm).
- A: Signifies a 25° contact angle, optimized for carrying higher axial loads.
- CD: Designates a Universal Matchable (SU) arrangement. Two bearings are pre-configured as a matched set for optimal performance when mounted together.
- HC: Refers to the hybrid ceramic construction (Ceramic balls with steel rings).
- P4A: Specifies the tolerance class, denoting extremely tight dimensional and running accuracy superior to ABEC 7 / ISO P4.
- DG: Indicates the bearing is pre-loaded with a specific grease lubrication.
- A: Confirms the Extra Light preload class.
S71914 ACD/HCP4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design provides significantly higher radial and moment load capacity compared to single row bearings, ensuring high rigid support for spindles and shafts.
- Superior High-Speed Performance: The use of ceramic (Si3N4) balls reduces centrifugal forces, lowers operating temperature, and enables a higher limiting speed (28,000 rpm). The lightweight phenolic resin cage further enhances high-speed stability.
- Extended Service Life & Reliability: The sealed design protects against contamination. The universal matchable (SU) arrangement ensures simplified installation and optimal performance of the matched set without the need for selective assembly.
- Thermal Stability: The hybrid ceramic construction results in less heat generation and is less sensitive to thermal preload changes, maintaining precision under varying operating conditions.
S71914 ACD/HCP4ADGA Bearing Typical Application Areas
This precision bearing is specifically designed for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- High-Frequency Machining Spindles
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- Advanced Dental and Medical Handpieces
- Aerospace Gyroscopes and Instrumentation
