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
6906LBC3
30.000 mm
47.000 mm
9.000 mm
0.300 mm
6006LUC3
30.000 mm
55.000 mm
13.000 mm
1.000 mm
0.111 kg
6206LUN
30.000 mm
62.000 mm
16.000 mm
1.000 mm
0.199 kg
6206LUC3
30.000 mm
62.000 mm
16.000 mm
1.000 mm
0.202 kg
6206LUNC3
30.000 mm
62.000 mm
16.000 mm
1.000 mm
0.199 kg
6306LUC3
30.000 mm
72.000 mm
19.000 mm
1.100 mm
0.344 kg
6306LUN
30.000 mm
72.000 mm
19.000 mm
1.100 mm
0.360 kg
6206LUC4
30.000 mm
62.000 mm
16.000 mm
1.000 mm
0.199 kg
6306LUNC3
30.000 mm
72.000 mm
19.000 mm
1.100 mm
0.360 kg
6806LU
30.000 mm
42.000 mm
7.000 mm
0.300 mm
6806LUN
30.000 mm
42.000 mm
7.000 mm
0.300 mm
0.023 kg
6806LUNC3
30.000 mm
42.000 mm
7.000 mm
0.300 mm
0.023 kg
6906LUN
30.000 mm
47.000 mm
9.000 mm
0.300 mm
0.050 kg
6906LUNC3
30.000 mm
47.000 mm
9.000 mm
0.300 mm
0.050 kg
6006LHN
30.000 mm
55.000 mm
13.000 mm
1.000 mm
0.116 kg
6006LHNC3
30.000 mm
55.000 mm
13.000 mm
1.000 mm
0.116 kg
6906LU
30.000 mm
47.000 mm
9.000 mm
0.300 mm
0.043 kg
6906LUC3
30.000 mm
47.000 mm
9.000 mm
0.300 mm
6006LU
30.000 mm
55.000 mm
13.000 mm
1.000 mm
0.111 kg
6206LU
30.000 mm
62.000 mm
16.000 mm
1.000 mm
0.202 kg
6306LU
30.000 mm
72.000 mm
19.000 mm
1.100 mm
0.344 kg
R18LLUC3
28.575 mm
53.975 mm
12.700 mm
0.787 mm
6006LUNC3
30.000 mm
55.000 mm
13.000 mm
1.000 mm
0.116 kg
6206LLU/28.575C3
28.575 mm
62.000 mm
16.000 mm
1.000 mm
0.202 kg