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
6915LLU
75.000 mm
105.000 mm
16.000 mm
1.000 mm
0.344 kg
6815LLUC3
75.000 mm
95.000 mm
10.000 mm
0.600 mm
0.140 kg
6915LLUC3
75.000 mm
105.000 mm
16.000 mm
1.000 mm
115LNC3
75.000 mm
115.000 mm
20.000 mm
1.016 mm
0.649 kg
6215L1AC4
75.000 mm
130.000 mm
25.000 mm
1.500 mm
1.160 kg
6315ZZC4
75.000 mm
160.000 mm
37.000 mm
2.100 mm
3.040 kg
6315T2LLBC3P5
75.000 mm
160.000 mm
37.000 mm
2.100 mm
2.980 kg
6215ZZC4/4M
75.000 mm
130.000 mm
25.000 mm
1.500 mm
1.120 kg
6815ZZ
75.000 mm
95.000 mm
10.000 mm
0.600 mm
0.139 kg
63315ZZC3/EM
75.000 mm
160.000 mm
68.262 mm
2.100 mm
6815ZZC3
75.000 mm
95.000 mm
10.000 mm
0.600 mm
6915LLB
75.000 mm
105.000 mm
16.000 mm
1.000 mm
0.346 kg
6915LLBC3
75.000 mm
105.000 mm
16.000 mm
1.000 mm
6015LLB
75.000 mm
115.000 mm
20.000 mm
1.100 mm
0.648 kg
6215LLB
75.000 mm
130.000 mm
25.000 mm
1.500 mm
1.155 kg
6315LLB
75.000 mm
160.000 mm
37.000 mm
2.100 mm
3.066 kg
6015LLBC3
75.000 mm
115.000 mm
20.000 mm
1.100 mm
0.648 kg
6815LLB
75.000 mm
95.000 mm
10.000 mm
0.600 mm
0.142 kg
6015LLBC3/9B
75.000 mm
115.000 mm
20.000 mm
1.100 mm
0.648 kg
6215ZZC3/EM
75.000 mm
130.000 mm
25.000 mm
1.500 mm
1.120 kg
6015LLBC3/EM
75.000 mm
115.000 mm
20.000 mm
1.100 mm
0.648 kg
6215ZZC4
75.000 mm
130.000 mm
25.000 mm
1.500 mm
1.120 kg
6215LLBC3/EM
75.000 mm
130.000 mm
25.000 mm
1.500 mm
1.155 kg
6315ZZC3/EM
75.000 mm
160.000 mm
37.000 mm
2.100 mm
3.070 kg