Single Angular Contact Ball Bearings

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

NTN’s Single Row Angular Contact Ball Bearings are engineered to deliver exceptional precision, durability, and load-bearing performance in high-speed and high-precision applications. Designed to accommodate combined radial and axial loads, these bearings are ideal for industrial machinery, automotive systems, and precision equipment where reliability and efficiency are critical.

### **Technical Features & Design Advantages**
NTN’s Single Row Angular Contact Ball Bearings feature a robust design with a contact angle (typically 15°, 25°, 30°, or 40°) that optimizes load distribution between axial and radial forces. The bearings are available in open, shielded, or sealed configurations, with options for high-grade steel, ceramic hybrid materials, or special heat treatments to enhance performance in extreme conditions.

Key design elements include:
– **Precision-Ground Raceways** – Minimize friction and ensure smooth operation at high speeds.
– **Optimized Cage Designs** – Available in pressed steel, machined brass, or polymer cages to reduce weight, prevent slippage, and improve lubrication retention.
– **High-Grade Materials** – NTN uses premium bearing steel (SUJ2 equivalent) or hybrid ceramic balls for applications requiring corrosion resistance, electrical insulation, or ultra-high-speed capability.
– **Preloaded Matched Sets** – For applications requiring rigid axial positioning, NTN offers precision-matched bearing sets (DB, DF, DT, or tandem arrangements) to minimize deflection and improve system stiffness.

### **Performance Benefits**
– **High-Speed Capability** – Low friction and optimized internal geometry allow for superior rotational performance in spindle motors, turbochargers, and machine tool applications.
– **Enhanced Load Capacity** – The angular contact design efficiently handles combined loads, making these bearings ideal for gearboxes, pumps, and electric vehicle drivetrains.
– **Long Service Life** – Advanced lubrication technologies and surface treatments reduce wear, extending bearing life even in contaminated or high-temperature environments.

### **Typical Applications**
NTN’s Single Row Angular Contact Ball Bearings are widely used in:
– **Industrial Machinery** – CNC spindles, robotics, and high-speed machining centers where precision and rigidity are crucial.
– **Automotive Systems** – Wheel hubs, transmissions, and electric motor bearings in hybrid/electric vehicles (EVs).
– **Aerospace & Precision Equipment** – Aviation actuators, medical devices, and optical instruments requiring ultra-low vibration and noise.

With decades of expertise in bearing technology, NTN ensures that its angular contact ball bearings meet the highest industry standards, including ISO, ABEC, and DIN specifications. Whether for high-speed automation, electric mobility, or heavy-duty industrial use, NTN’s bearings provide unmatched performance and reliability.

For applications demanding precision, durability, and efficiency, NTN’s Single Row Angular Contact Ball Bearings are the trusted solution.

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Part Number d D B r Mass
7905CG/GNP4
25.000 mm
42.000 mm
9.000 mm
0.300 mm
0.042 kg
7821C
105.000 mm
130.000 mm
13.000 mm
1.000 mm
0.310 kg
7905CP5
25.000 mm
42.000 mm
9.000 mm
0.300 mm
0.042 kg
7822C
110.000 mm
140.000 mm
16.000 mm
1.000 mm
0.490 kg
7905UCP5
25.000 mm
42.000 mm
9.000 mm
0.300 mm
0.042 kg
7822CP4
110.000 mm
140.000 mm
16.000 mm
1.000 mm
0.490 kg
7906
30.000 mm
47.000 mm
9.000 mm
0.300 mm
7824C
120.000 mm
150.000 mm
16.000 mm
1.000 mm
0.520 kg
7906C
30.000 mm
47.000 mm
9.000 mm
0.300 mm
7826C
130.000 mm
165.000 mm
18.000 mm
1.100 mm
0.910 kg
7814C
70.000 mm
90.000 mm
10.000 mm
0.600 mm
0.130 kg
7815C
75.000 mm
95.000 mm
10.000 mm
0.600 mm
0.140 kg
7815CG/GNP4
75.000 mm
95.000 mm
10.000 mm
0.600 mm
0.140 kg
7816C
80.000 mm
100.000 mm
10.000 mm
0.600 mm
0.150 kg
7816CG/GNP4
80.000 mm
100.000 mm
10.000 mm
0.600 mm
0.147 kg
7816CG/GNUP-1
80.000 mm
100.000 mm
10.000 mm
0.600 mm
0.146 kg
7817C
85.000 mm
110.000 mm
13.000 mm
1.000 mm
0.260 kg
7809C
45.000 mm
58.000 mm
7.000 mm
0.300 mm
0.039 kg
7818C
90.000 mm
115.000 mm
13.000 mm
1.000 mm
0.270 kg
7810C
50.000 mm
65.000 mm
7.000 mm
0.300 mm
0.049 kg