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
7319B
95.000 mm
200.000 mm
45.000 mm
3.000 mm
6.000 kg
7319BG
95.000 mm
200.000 mm
45.000 mm
3.000 mm
5.800 kg
7319BL1BG
95.000 mm
200.000 mm
45.000 mm
3.000 mm
6.810 kg
7319BL1G
95.000 mm
200.000 mm
45.000 mm
3.000 mm
6.810 kg
7319C
95.000 mm
200.000 mm
45.000 mm
3.000 mm
7320
100.000 mm
215.000 mm
47.000 mm
3.000 mm
7320B
100.000 mm
215.000 mm
47.000 mm
3.000 mm
7.340 kg
7320BG
100.000 mm
215.000 mm
47.000 mm
3.000 mm
7.340 kg
7320BL1
100.000 mm
215.000 mm
47.000 mm
3.000 mm
8.320 kg
7320BL1BG
100.000 mm
215.000 mm
47.000 mm
3.000 mm
7.320 kg
7315C
75.000 mm
160.000 mm
37.000 mm
2.100 mm
7318B
90.000 mm
190.000 mm
43.000 mm
3.000 mm
5.090 kg
7316
80.000 mm
170.000 mm
39.000 mm
2.100 mm
7316B
80.000 mm
170.000 mm
39.000 mm
2.100 mm
3.740 kg
7316BG
80.000 mm
170.000 mm
39.000 mm
2.100 mm
3.740 kg
7316BGC3
80.000 mm
170.000 mm
39.000 mm
2.100 mm
3.740 kg
7316BL1BG
80.000 mm
170.000 mm
39.000 mm
2.100 mm
4.230 kg
7316BL1G
80.000 mm
170.000 mm
39.000 mm
2.100 mm
4.230 kg
7316BL1G/GN
80.000 mm
170.000 mm
39.000 mm
2.100 mm
4.230 kg
7316C
80.000 mm
170.000 mm
39.000 mm
2.100 mm