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
SF0816
38.100 mm
67.000 mm
16.400 mm
N/A
0.196 kg
SF0914
45.000 mm
74.000 mm
18.000 mm
N/A
0.224 kg
SF0937
45.000 mm
77.000 mm
22.000 mm
N/A
0.293 kg
SF1752CS204
85.000 mm
150.000 mm
28.000 mm
N/A
2.180 kg
SF2907PX1
143.000 mm
175.000 mm
16.000 mm
1.500 mm
0.445 kg
SF3242
160.000 mm
210.000 mm
24.000 mm
N/A
1.730 kg
7926
130.000 mm
180.000 mm
24.000 mm
1.500 mm
7926C
130.000 mm
180.000 mm
24.000 mm
1.500 mm
7928
140.000 mm
190.000 mm
24.000 mm
1.500 mm
7928C
140.000 mm
190.000 mm
24.000 mm
1.500 mm
7928CT1B
140.000 mm
190.000 mm
24.000 mm
1.500 mm
1.660 kg
7930
150.000 mm
210.000 mm
28.000 mm
2.000 mm
7930C
150.000 mm
210.000 mm
28.000 mm
2.000 mm
7930CT1B
150.000 mm
210.000 mm
28.000 mm
2.000 mm
2.590 kg
7932
160.000 mm
220.000 mm
28.000 mm
2.000 mm
7932C
160.000 mm
220.000 mm
28.000 mm
2.000 mm
7932CT1B
160.000 mm
220.000 mm
28.000 mm
2.000 mm
2.720 kg
7934
170.000 mm
230.000 mm
28.000 mm
2.000 mm
7934C
170.000 mm
230.000 mm
28.000 mm
2.000 mm
7934CT1B
170.000 mm
230.000 mm
28.000 mm
2.000 mm
2.890 kg
7936
180.000 mm
250.000 mm
36.000 mm
2.000 mm
7938
190.000 mm
260.000 mm
33.000 mm
2.000 mm
7940
200.000 mm
280.000 mm
38.000 mm
2.100 mm
7944
220.000 mm
300.000 mm
38.000 mm
2.100 mm