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
7326B
130.000 mm
280.000 mm
58.000 mm
4.000 mm
17.670 kg
7321BL1BG
105.000 mm
225.000 mm
49.000 mm
3.000 mm
8.310 kg
7326BG
130.000 mm
280.000 mm
58.000 mm
4.000 mm
17.700 kg
7321BL1G
105.000 mm
225.000 mm
49.000 mm
3.000 mm
8.310 kg
7321C
105.000 mm
225.000 mm
49.000 mm
3.000 mm
7322
110.000 mm
240.000 mm
50.000 mm
3.000 mm
7322B
110.000 mm
240.000 mm
50.000 mm
3.000 mm
9.950 kg
7322BG
110.000 mm
240.000 mm
50.000 mm
3.000 mm
9.950 kg
7322BGM
110.000 mm
240.000 mm
50.000 mm
3.000 mm
11.000 kg
7322BL1
110.000 mm
240.000 mm
50.000 mm
3.000 mm
11.000 kg
7320BL1G
100.000 mm
215.000 mm
47.000 mm
3.000 mm
8.320 kg
7318BG
90.000 mm
190.000 mm
43.000 mm
3.000 mm
5.090 kg
7320BL1G/GL
100.000 mm
215.000 mm
47.000 mm
3.000 mm
8.320 kg
7318BL1BG
90.000 mm
190.000 mm
43.000 mm
3.000 mm
5.830 kg
7320C
100.000 mm
215.000 mm
47.000 mm
3.000 mm
7318BL1G
90.000 mm
190.000 mm
43.000 mm
3.000 mm
5.830 kg
7320CP5
100.000 mm
215.000 mm
47.000 mm
3.000 mm
6.900 kg
7318C
90.000 mm
190.000 mm
43.000 mm
3.000 mm
7320L1A
100.000 mm
215.000 mm
47.000 mm
3.000 mm
8.320 kg
7319
95.000 mm
200.000 mm
45.000 mm
3.000 mm