S71914 ACB/HCP4ATGA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S71914 ACB/HCP4ATGA
Basic Information
System of measurement
Metric
Weight
1.03 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
48 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
6322 lbf
Radial static load rating
7988 lbf
Limiting speed
22 X 1000 rpm
Lubrication
Grease
Matched arrangement
Universal Matchable (SU)
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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S71914 ACB/HCP4ATGA Bearing Product Overview & Core Advantages
The S71914 ACB/HCP4ATGA is a precision double-row angular contact ball bearing engineered for applications demanding exceptional accuracy and reliability. Its design enables it to simultaneously support substantial combined loads (radial and bidirectional axial loads) with high rigidity. Manufactured to P4A tolerance class and featuring a universal matchable (SU) designation, it is ideal for high-precision spindles and other critical machinery. The combination of a ceramic ball and phenolic cage contributes to superior high-speed performance and extended service life.
S71914 ACB/HCP4ATGA Bearing Model Code Explained, Specifications & Naming Convention
The model number S71914 ACB/HCP4ATGA provides detailed technical specifications:
- S7: High-precision bearing series.
- 1914: Standard size designation (70mm Bore, 100mm OD, 48mm Width).
- ACB: Angular Contact Bearing with a 25° contact angle.
- HCP4A: Precision class P4A with enhanced running accuracy.
- T: Phenolic (textile) cage material.
- GA: Specific internal clearance and preload (Extra light / Class A).
S71914 ACB/HCP4ATGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double-row design provides superior radial and axial stiffness, enabling stable operation under combined loads.
- High-Speed Performance: The lightweight phenolic cage and low-friction ceramic balls significantly reduce centrifugal forces, allowing for a high limiting speed of 22,000 rpm.
- Precision & Accuracy: Manufactured to P4A tolerance class with strict dimensional control on the bore, outside diameter, and width for exceptional running accuracy.
- Universal Matchability (SU): Bearings are universally matchable, allowing for flexible mounting arrangements (back-to-back, face-to-face, or tandem) to optimize system performance.
- Sealed & Pre-Lubricated: The sealed design with factory-applied grease protects against contamination and provides reliable lubrication within the specified temperature range of -30°C to 110°C.
S71914 ACB/HCP4ATGA Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles
- High-Speed Machining Centers
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Advanced Robotics and Automation Systems
