Super High-Speed Angular Contact Bearings – HSF Type

**NTN Angular Contact Ball Bearings: Precision & Performance for Demanding Applications**

NTN is a global leader in bearing technology, renowned for manufacturing high-performance angular contact ball bearings that meet the rigorous demands of industrial machinery, automotive systems, and precision equipment. Designed to handle combined radial and axial loads, NTN’s angular contact ball bearings excel in applications requiring high-speed operation, precision alignment, and long-term reliability. The product range includes **Precision Angular Contact Ball Bearings**, **High-Speed Angular Contact Ball Bearings**, and **Super High-Speed Angular Contact Bearings**, each engineered to deliver superior performance in specialized environments.

### **Technical Features & Design Advantages**

NTN’s angular contact ball bearings are distinguished by their optimized internal geometry, high-grade materials, and advanced manufacturing techniques. Key features include:

– **Precision-Grade Construction**: NTN’s **Precision Angular Contact Ball Bearings** are manufactured to ultra-tight tolerances (ABEC 7/P4, ABEC 9/P2), ensuring minimal vibration and noise in high-precision applications such as machine tool spindles and robotics.
– **High-Speed Capability**: The **High-Speed and Super High-Speed Angular Contact Bearings** incorporate low-friction designs, ceramic hybrid options (silicon nitride balls), and specialized cage materials (e.g., phenolic resin or reinforced polyamide) to reduce centrifugal forces and heat generation at extreme RPMs.
– **Optimized Contact Angles (15°, 25°, 30°, 40°)**: The bearings are available in multiple contact angles to balance axial and radial load capacity—steeper angles enhance thrust load handling, while shallower angles improve speed performance.
– **Enhanced Lubrication & Sealing**: Options include grease-packed, oil-lubricated, or sealed configurations to extend service life in contaminated or high-temperature environments.
– **Rigidity & Durability**: Heat-treated rings and advanced surface finishing techniques improve fatigue resistance and reduce wear under heavy loads.

### **Performance Advantages**

NTN’s angular contact ball bearings are engineered to outperform competitors in critical metrics:

– **Reduced Friction & Heat Buildup**: Advanced cage designs and lubrication systems minimize energy loss, enabling higher efficiency and longer service intervals.
– **Superior Running Accuracy**: Ideal for applications where positional accuracy is critical, such as CNC machining centers and medical imaging equipment.
– **Extended Service Life**: Robust materials and precision grinding reduce micropitting and skidding, even in high-vibration environments.

### **Typical Applications**

NTN’s angular contact ball bearings are widely used in:

– **Industrial Machinery**: Machine tool spindles, robotic arms, and gearboxes requiring precision and rigidity.
– **Automotive Systems**: Wheel hubs, turbochargers, and electric vehicle (EV) motor bearings where high-speed and load capacity are essential.
– **Aerospace & Defense**: Aviation actuators and helicopter transmissions demanding lightweight, high-speed solutions.
– **Medical & Semiconductor Equipment**: High-precision scanners and wafer-handling robots reliant on vibration-free operation.

By combining cutting-edge engineering with rigorous quality control, NTN ensures its angular contact ball bearings deliver unmatched reliability, efficiency, and performance—making them the preferred choice for mission-critical applications worldwide.

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Part Number d D B r Mass
5S-2LA-HSF020AD
100.000 mm
150.000 mm
24.000 mm
1.500 mm
5S-2LA-HSF010AD
50.000 mm
80.000 mm
16.000 mm
1.000 mm
5S-2LA-HSF011AD
55.000 mm
90.000 mm
18.000 mm
1.100 mm
5S-2LA-HSF012AD
60.000 mm
95.000 mm
18.000 mm
1.100 mm
5S-2LA-HSF013AD
65.000 mm
100.000 mm
18.000 mm
1.100 mm
5S-2LA-HSF014AD
70.000 mm
110.000 mm
20.000 mm
1.100 mm
5S-2LA-HSF015AD
75.000 mm
115.000 mm
20.000 mm
1.100 mm
5S-2LA-HSF016AD
80.000 mm
125.000 mm
22.000 mm
1.100 mm
5S-2LA-HSF017AD
85.000 mm
130.000 mm
22.000 mm
1.100 mm
5S-2LA-HSF018AD
90.000 mm
140.000 mm
24.000 mm
1.500 mm
5S-2LA-HSF019AD
95.000 mm
145.000 mm
24.000 mm
1.500 mm