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
6809LUNC3
45.000 mm
58.000 mm
7.000 mm
0.300 mm
0.040 kg
6909LUN
45.000 mm
68.000 mm
12.000 mm
0.600 mm
0.135 kg
6309ZNC3
45.000 mm
100.000 mm
25.000 mm
1.500 mm
0.814 kg
6909LUNC3
45.000 mm
68.000 mm
12.000 mm
0.600 mm
0.135 kg
6809ZN
45.000 mm
58.000 mm
7.000 mm
0.300 mm
0.040 kg
6009LHN
45.000 mm
75.000 mm
16.000 mm
1.000 mm
0.237 kg
6809ZNC3
45.000 mm
58.000 mm
7.000 mm
0.300 mm
0.040 kg
6009LHNC3
45.000 mm
75.000 mm
16.000 mm
1.000 mm
0.237 kg
6909ZN
45.000 mm
68.000 mm
12.000 mm
0.600 mm
0.135 kg
6009LU
45.000 mm
75.000 mm
16.000 mm
1.000 mm
0.237 kg
6909ZNC3
45.000 mm
68.000 mm
12.000 mm
0.600 mm
0.135 kg
6009LBN
45.000 mm
75.000 mm
16.000 mm
1.000 mm
0.237 kg
6009LBNC3
45.000 mm
75.000 mm
16.000 mm
1.000 mm
0.237 kg
6009LUN
45.000 mm
75.000 mm
16.000 mm
1.000 mm
0.237 kg
6009LUNC3
45.000 mm
75.000 mm
16.000 mm
1.000 mm
0.237 kg
6209LUN
45.000 mm
85.000 mm
19.000 mm
1.100 mm
0.398 kg
6209LUNC3
45.000 mm
85.000 mm
19.000 mm
1.100 mm
0.398 kg
6009ZN
45.000 mm
75.000 mm
16.000 mm
1.000 mm
0.237 kg
6208T2XLBAC4P5/L683Q42
40.000 mm
80.000 mm
18.000 mm
1.100 mm
0.368 kg
6009ZNC3
45.000 mm
75.000 mm
16.000 mm
1.000 mm
0.237 kg
6308LLBC3
40.000 mm
90.000 mm
23.000 mm
1.500 mm
0.638 kg
6209ZN
45.000 mm
85.000 mm
19.000 mm
1.100 mm
0.398 kg
6308T2X2LLBACS40PX13/L683Q32
40.000 mm
90.000 mm
23.000 mm
1.500 mm
6209ZNC3
45.000 mm
85.000 mm
19.000 mm
1.100 mm
0.398 kg