Single Angular Contact Ball Bearings – Ultage Type

**NTN Precision Angular Contact Ball Bearings: Engineered for Performance and Reliability**

NTN Corporation, a global leader in bearing technology, offers a comprehensive range of high-performance **Angular Contact Ball Bearings**, designed to meet the demanding requirements of industrial machinery, automotive systems, and precision equipment. Among NTN’s extensive portfolio, **Single Row Angular Contact Ball Bearings** stand out for their ability to handle combined radial and axial loads while maintaining exceptional precision, durability, and rotational accuracy. These bearings are engineered to optimize performance in high-speed applications, ensuring reliability in even the most challenging operating conditions.

### **Technical Features & Design Advantages**
NTN’s **Precision Angular Contact Ball Bearings** are meticulously crafted with advanced materials, precision grinding, and optimized internal geometries to deliver superior performance. Key features include:

– **High-Speed Capability**: Designed with low-friction cages (such as phenolic resin or machined brass) and precision-ground raceways, these bearings minimize heat generation and maintain stability at high rotational speeds.
– **Axial Load Capacity**: The contact angle (typically 15°, 25°, or 40°) determines load distribution, allowing these bearings to support significant axial loads in one direction while accommodating radial loads.
– **Precision Tolerance & Rigidity**: Manufactured to ABEC-5, ABEC-7, or higher precision grades, NTN’s bearings ensure minimal runout and vibration, making them ideal for CNC spindles, robotics, and machine tools.
– **Enhanced Durability**: Advanced heat treatment processes and high-grade steel (or ceramic hybrid options) extend service life, even in harsh environments.
– **Sealing & Lubrication Options**: Available with shields, seals, or open designs, these bearings can be pre-lubricated with grease or oil for maintenance-free operation.

### **Performance Advantages**
NTN’s **Single Angular Contact Ball Bearings** excel in applications requiring:
– **High Rigidity & Accuracy**: Critical for machine tool spindles, where precision alignment and minimal deflection are essential.
– **Reduced Friction & Energy Efficiency**: Optimized internal designs lower torque resistance, improving efficiency in electric motors and automotive drivetrains.
– **Long Service Life**: Robust construction reduces wear, making them suitable for continuous operation in industrial gearboxes, pumps, and compressors.

### **Typical Applications**
– **Industrial Machinery**: CNC machining centers, grinding spindles, and robotics, where high-speed precision is critical.
– **Automotive Systems**: Wheel hubs, transmissions, and turbochargers, benefiting from their load-bearing efficiency and durability.
– **Aerospace & Defense**: Actuators, gyroscopes, and rotor systems requiring ultra-precise, high-reliability bearings.
– **Renewable Energy**: Wind turbine pitch and yaw systems, where high axial load capacity and corrosion resistance are essential.

NTN’s **Angular Contact Ball Bearings** represent a fusion of cutting-edge engineering and rigorous quality control, ensuring peak performance across industries. Whether in high-speed automation, automotive innovation, or precision instrumentation, NTN delivers solutions that enhance efficiency, reduce downtime, and push the boundaries of bearing technology.

For applications demanding unmatched precision and reliability, NTN’s bearings are the trusted choice of engineers worldwide.

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Part Number d D B r Mass
7926UC
130.000 mm
180.000 mm
24.000 mm
1.500 mm
1.570 kg
7918U
90.000 mm
125.000 mm
18.000 mm
1.100 mm
0.560 kg
7918UAD
90.000 mm
125.000 mm
18.000 mm
1.100 mm
0.560 kg
7918UC
90.000 mm
125.000 mm
18.000 mm
1.100 mm
0.560 kg
7919U
90.000 mm
125.000 mm
18.000 mm
1.100 mm
0.590 kg
7919UAD
90.000 mm
125.000 mm
18.000 mm
1.100 mm
0.590 kg
7919UC
95.000 mm
130.000 mm
18.000 mm
1.100 mm
0.590 kg
7920U
100.000 mm
140.000 mm
20.000 mm
1.100 mm
0.810 kg
7920UAD
100.000 mm
140.000 mm
20.000 mm
1.100 mm
0.810 kg
7920UC
100.000 mm
140.000 mm
20.000 mm
1.100 mm
0.810 kg
7921U
105.000 mm
145.000 mm
20.000 mm
1.100 mm
0.840 kg
7921UAD
105.000 mm
145.000 mm
20.000 mm
1.100 mm
0.840 kg
7921UC
105.000 mm
145.000 mm
20.000 mm
1.100 mm
0.840 kg
7922U
110.000 mm
150.000 mm
20.000 mm
1.100 mm
0.870 kg
7922UAD
110.000 mm
150.000 mm
20.000 mm
1.100 mm
0.870 kg
7922UC
110.000 mm
150.000 mm
20.000 mm
1.100 mm
0.870 kg
7924U
120.000 mm
165.000 mm
22.000 mm
1.100 mm
1.190 kg
7924UAD
120.000 mm
165.000 mm
22.000 mm
1.100 mm
1.190 kg
7924UC
120.000 mm
165.000 mm
22.000 mm
1.100 mm
1.190 kg
7926U
130.000 mm
180.000 mm
24.000 mm
1.500 mm
1.570 kg
7926UAD
130.000 mm
180.000 mm
24.000 mm
1.500 mm
1.570 kg
7912U
60.000 mm
85.000 mm
13.000 mm
1.000 mm
0.190 kg
7912UAD
60.000 mm
85.000 mm
13.000 mm
1.000 mm
0.190 kg
7912UC
60.000 mm
85.000 mm
13.000 mm
1.000 mm
0.190 kg