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
SC1827C3
88.900 mm
127.000 mm
19.050 mm
0.748 kg
6218LUNC3
90.000 mm
160.000 mm
30.000 mm
2.000 mm
2.150 kg
6018ZN
90.000 mm
140.000 mm
24.000 mm
1.500 mm
1.020 kg
6018ZNC3
90.000 mm
140.000 mm
24.000 mm
1.500 mm
1.020 kg
6218ZN
90.000 mm
160.000 mm
30.000 mm
2.000 mm
2.150 kg
6218ZNC3
90.000 mm
160.000 mm
30.000 mm
2.000 mm
2.150 kg
6318ZN
90.000 mm
190.000 mm
43.000 mm
3.000 mm
4.910 kg
6318ZNC3
90.000 mm
190.000 mm
43.000 mm
3.000 mm
4.910 kg
6818ZN
90.000 mm
115.000 mm
13.000 mm
1.000 mm
0.272 kg
6317LLUC3
85.000 mm
180.000 mm
41.000 mm
3.000 mm
4.250 kg
6317LLBC3/EM
85.000 mm
180.000 mm
41.000 mm
3.000 mm
4.230 kg
117
85.000 mm
130.000 mm
22.000 mm
2.769 mm
0.948 kg
6817LLBC3
85.000 mm
110.000 mm
13.000 mm
1.000 mm
217C3
85.000 mm
150.000 mm
28.000 mm
2.769 mm
1.805 kg
6017LLU
85.000 mm
130.000 mm
22.000 mm
1.100 mm
0.905 kg
TMB217ZZ
85.000 mm
150.000 mm
28.000 mm
6017LLUC3/EM
85.000 mm
130.000 mm
22.000 mm
1.100 mm
0.890 kg
6017LLBC3
85.000 mm
130.000 mm
22.000 mm
1.100 mm
0.908 kg
6217LLU
85.000 mm
150.000 mm
28.000 mm
2.000 mm
1.820 kg
6217LLUC3
85.000 mm
150.000 mm
28.000 mm
2.000 mm
1.790 kg
6317LLU
85.000 mm
180.000 mm
41.000 mm
3.000 mm
4.250 kg
6317LLUC3/EM
85.000 mm
180.000 mm
41.000 mm
3.000 mm
4.230 kg
6917LLU
85.000 mm
120.000 mm
18.000 mm
1.100 mm
0.526 kg
6917LLUC3
85.000 mm
120.000 mm
18.000 mm
1.100 mm
0.534 kg