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
6208FT150ZZ
40.000 mm
80.000 mm
18.000 mm
1.100 mm
6208HT200ZZ
40.000 mm
80.000 mm
18.000 mm
1.100 mm
6908NC3
40.000 mm
62.000 mm
12.000 mm
0.600 mm
6208HVZZ
40.000 mm
80.000 mm
18.000 mm
1.100 mm
0.373 kg
6008ZZ
40.000 mm
68.000 mm
15.000 mm
1.000 mm
0.186 kg
6208ZZC2
40.000 mm
80.000 mm
18.000 mm
1.100 mm
0.360 kg
6208ZZ
40.000 mm
80.000 mm
18.000 mm
1.100 mm
0.368 kg
6208ZZC3/EM
40.000 mm
80.000 mm
18.000 mm
1.100 mm
0.368 kg
6308ZZ
40.000 mm
90.000 mm
23.000 mm
1.500 mm
0.634 kg
6208ZZC4
40.000 mm
80.000 mm
18.000 mm
1.100 mm
0.368 kg
TMB208ZZ
40.000 mm
80.000 mm
18.000 mm
1.500 mm
0.367 kg
6408ZZC3
40.000 mm
110.000 mm
27.000 mm
2.000 mm
1.252 kg
63209ZZ
40.000 mm
80.000 mm
30.200 mm
1.100 mm
0.631 kg
6208N
40.000 mm
80.000 mm
18.000 mm
1.100 mm
0.365 kg
6208NC3
40.000 mm
80.000 mm
18.000 mm
1.100 mm
0.359 kg
6308N
40.000 mm
90.000 mm
23.000 mm
1.500 mm
0.622 kg
6008N
40.000 mm
68.000 mm
15.000 mm
1.000 mm
0.190 kg
6008NC3
40.000 mm
68.000 mm
15.000 mm
1.000 mm
6208LLBNRC3
40.000 mm
80.000 mm
18.000 mm
1.100 mm
6308NC3
40.000 mm
90.000 mm
23.000 mm
1.500 mm
6808LLBNR
40.000 mm
52.000 mm
7.000 mm
0.300 mm
6808N
40.000 mm
52.000 mm
7.000 mm
0.300 mm
6808LLBNRC3
40.000 mm
52.000 mm
7.000 mm
0.300 mm
6808NC3
40.000 mm
52.000 mm
7.000 mm
0.300 mm