Single Row Radial Ball Bearings

**NTN Single Row Deep Groove Ball Bearings: Precision, Durability & Performance for Demanding Applications**

NTN’s **Single Row Deep Groove Ball Bearings** represent the pinnacle of reliability and efficiency in radial bearing technology. Designed to handle both radial and moderate axial loads, these bearings are engineered for high-speed operation, low noise, and extended service life across a wide range of industrial and automotive applications. With precision-ground raceways, high-quality steel construction, and advanced sealing options, NTN’s deep groove ball bearings deliver unmatched performance in compact, lightweight designs.

### **Technical Features & Design Advantages**
NTN’s deep groove ball bearings incorporate several key innovations to optimize performance:
– **Robust Single-Row Design**: The deep, uninterrupted raceway geometry ensures smooth load distribution, reducing stress concentrations and wear.
– **High-Grade Materials**: Manufactured from premium chromium steel (SUJ2 equivalent) or specialty alloys, these bearings resist fatigue and deformation under heavy loads.
– **Precision Grinding & Tolerances**: NTN’s stringent manufacturing standards ensure ABEC-1 to ABEC-7 tolerance classes, minimizing vibration for sensitive applications.
– **Versatile Configurations**: Available with shields (ZZ, 2Z), rubber seals (LLU, 2LU), or open designs to suit lubrication and contamination control needs.
– **Optimized Cage Designs**: Options include pressed steel, machined brass, or polymer cages (e.g., glass fiber-reinforced PA66) for high-speed stability.

### **Performance Benefits**
– **Low Friction & Energy Efficiency**: Reduced torque losses enhance efficiency in motors, pumps, and electric vehicles (EVs).
– **High-Speed Capability**: Advanced lubrication and dynamic balancing enable stable operation at extreme RPMs (e.g., machine tool spindles).
– **Long Service Life**: NTN’s proprietary heat treatment and surface finishing technologies (like TF treatment) combat micropitting and extend bearing life.
– **Quiet Operation**: Precision engineering minimizes acoustic noise, ideal for HVAC fans and automotive alternators.

### **Typical Applications**
NTN’s deep groove ball bearings are integral to:
– **Industrial Machinery**: Electric motors, gearboxes, conveyors, and CNC equipment.
– **Automotive Systems**: Wheel hubs, transmissions, alternators, and EV drivetrains.
– **Precision Equipment**: Medical devices, robotics, and aerospace actuators.
– **Consumer Appliances**: Compressors, power tools, and agricultural machinery.

For engineers seeking a balance of load capacity, speed, and reliability, NTN’s deep groove ball bearings offer a proven solution backed by global R&D and stringent quality control. Whether in harsh industrial environments or high-performance automotive systems, these bearings ensure smooth, maintenance-free operation under demanding conditions.

*Explore NTN’s full range of sizes, seals, and specialty coatings to match your application’s exact requirements.*

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Part Number d D B r Mass
6944C3
220.000 mm
300.000 mm
38.000 mm
2.100 mm
7.690 kg
6844
220.000 mm
270.000 mm
24.000 mm
1.500 mm
6944
220.000 mm
300.000 mm
38.000 mm
2.100 mm
XLS8-3/4SSH
223.647 mm
298.450 mm
38.100 mm
0.508 mm
XLS8-3/4SSHV2
223.647 mm
298.450 mm
38.100 mm
0.508 mm
6838C3
190.000 mm
240.000 mm
24.000 mm
1.500 mm
2.600 kg
6838
190.000 mm
240.000 mm
24.000 mm
1.500 mm
6938
190.000 mm
240.000 mm
33.000 mm
2.000 mm
6038ZZC3
190.000 mm
290.000 mm
46.000 mm
2.100 mm
9.560 kg
6838LLB
190.000 mm
240.000 mm
24.000 mm
1.500 mm
61838C3
190.000 mm
240.000 mm
24.000 mm
2.620 kg
2TS2-6838C3
190.000 mm
240.000 mm
24.000 mm
1.500 mm
2.620 kg
6038ZZC3/EM
190.000 mm
290.000 mm
46.000 mm
2.100 mm
9.560 kg
6040
200.000 mm
310.000 mm
51.000 mm
2.100 mm
11.900 kg
6240
200.000 mm
360.000 mm
58.000 mm
4.000 mm
21.600 kg
6340
200.000 mm
420.000 mm
80.000 mm
5.000 mm
46.300 kg
6040C3
200.000 mm
310.000 mm
51.000 mm
2.100 mm
12.200 kg
6240C3
200.000 mm
360.000 mm
58.000 mm
4.000 mm
21.600 kg
6340C3
200.000 mm
420.000 mm
80.000 mm
5.000 mm
47.500 kg
6240L1C3
200.000 mm
360.000 mm
58.000 mm
4.000 mm
21.600 kg
6840
200.000 mm
250.000 mm
24.000 mm
1.500 mm
2.690 kg
16040C3
200.000 mm
310.000 mm
34.000 mm
2.000 mm
9.030 kg
16040
200.000 mm
310.000 mm
34.000 mm
2.000 mm
8.680 kg
6940C3
200.000 mm
280.000 mm
38.000 mm
2.100 mm
7.170 kg