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
7334B
170.000 mm
360.000 mm
72.000 mm
4.000 mm
35.890 kg
7334BG
170.000 mm
360.000 mm
72.000 mm
4.000 mm
36.000 kg
7336
180.000 mm
380.000 mm
75.000 mm
4.000 mm
7336B
180.000 mm
380.000 mm
75.000 mm
4.000 mm
41.800 kg
7338
190.000 mm
400.000 mm
78.000 mm
5.000 mm
7338B
190.000 mm
400.000 mm
78.000 mm
5.000 mm
7328
140.000 mm
300.000 mm
62.000 mm
4.000 mm
7338BG
190.000 mm
400.000 mm
78.000 mm
5.000 mm
47.000 kg
7328B
140.000 mm
300.000 mm
62.000 mm
4.000 mm
21.500 kg
7340
200.000 mm
420.000 mm
80.000 mm
5.000 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
7322BL1BG
110.000 mm
240.000 mm
50.000 mm
3.000 mm
7322BL1G
110.000 mm
240.000 mm
50.000 mm
3.000 mm
11.000 kg
7322C
110.000 mm
240.000 mm
50.000 mm
3.000 mm
7324
120.000 mm
260.000 mm
55.000 mm
3.000 mm
7324B
120.000 mm
260.000 mm
55.000 mm
3.000 mm
14.500 kg