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
6815LBC3
75.000 mm
95.000 mm
10.000 mm
0.600 mm
0.138 kg
6815LB
75.000 mm
95.000 mm
10.000 mm
0.600 mm
0.136 kg
6015LU
75.000 mm
115.000 mm
20.000 mm
1.100 mm
0.627 kg
6915LB
75.000 mm
105.000 mm
16.000 mm
1.000 mm
6215LU
75.000 mm
130.000 mm
25.000 mm
1.500 mm
1.150 kg
6915LBC3
75.000 mm
105.000 mm
16.000 mm
1.000 mm
6315LU
75.000 mm
160.000 mm
37.000 mm
2.100 mm
3.010 kg
6015Z
75.000 mm
115.000 mm
20.000 mm
1.100 mm
0.628 kg
6015LUC3
75.000 mm
115.000 mm
20.000 mm
1.100 mm
0.627 kg
6215Z
75.000 mm
130.000 mm
25.000 mm
1.500 mm
1.150 kg
6215LUC3
75.000 mm
130.000 mm
25.000 mm
1.500 mm
6315LUC3
75.000 mm
160.000 mm
37.000 mm
2.100 mm
3.081 kg
6815LU
75.000 mm
95.000 mm
10.000 mm
0.600 mm
6215LUNC3
75.000 mm
130.000 mm
25.000 mm
1.500 mm
1.180 kg
6315LUN
75.000 mm
160.000 mm
37.000 mm
2.100 mm
3.020 kg
6315LUNC3
75.000 mm
160.000 mm
37.000 mm
2.100 mm
3.020 kg
6815LUN
75.000 mm
95.000 mm
10.000 mm
0.600 mm
0.144 kg
6815LUNC3
75.000 mm
95.000 mm
10.000 mm
0.600 mm
0.144 kg
6315ZN
75.000 mm
160.000 mm
37.000 mm
2.100 mm
3.020 kg
6915LUN
75.000 mm
105.000 mm
16.000 mm
1.000 mm
0.356 kg
6315ZNC3
75.000 mm
160.000 mm
37.000 mm
2.100 mm
3.020 kg
6915LUNC3
75.000 mm
105.000 mm
16.000 mm
1.000 mm
0.356 kg
6815ZN
75.000 mm
95.000 mm
10.000 mm
0.600 mm
0.144 kg
6915LU
75.000 mm
105.000 mm
16.000 mm
1.000 mm
0.364 kg