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
6312LLBC3/9B
60.000 mm
130.000 mm
31.000 mm
2.100 mm
1.710 kg
63312LLU
60.000 mm
130.000 mm
54.000 mm
2.100 mm
2.860 kg
6312LLBC3/EM
60.000 mm
130.000 mm
31.000 mm
2.000 mm
1.710 kg
6312T2LLBC3P5
60.000 mm
130.000 mm
31.000 mm
2.100 mm
1.650 kg
63312LLB
60.000 mm
130.000 mm
54.000 mm
2.100 mm
1.730 kg
63312LLBC3/EM
60.000 mm
130.000 mm
54.000 mm
2.100 mm
2.850 kg
6212M8LLBC3P5
60.000 mm
110.000 mm
22.000 mm
1.500 mm
0.779 kg
6912LLBC3/EM
60.000 mm
85.000 mm
13.000 mm
1.000 mm
0.193 kg
6812LLBC3
60.000 mm
78.000 mm
10.000 mm
0.300 mm
0.102 kg
63212LLBC3/EM
60.000 mm
110.000 mm
36.500 mm
2.500 mm
0.783 kg
6012LLU
60.000 mm
95.000 mm
18.000 mm
1.100 mm
0.413 kg
6012LLUC3/EM
60.000 mm
95.000 mm
18.000 mm
1.100 mm
0.414 kg
6212LLU
60.000 mm
110.000 mm
22.000 mm
1.500 mm
0.775 kg
63312ZZC3/EM
60.000 mm
130.000 mm
54.000 mm
2.100 mm
1.730 kg
6012LLBC3/EM
60.000 mm
95.000 mm
18.000 mm
1.100 mm
0.413 kg
TS3-6312ZZC3/4M
60.000 mm
130.000 mm
31.000 mm
2.100 mm
1.730 kg
6212ZZC2
60.000 mm
110.000 mm
22.000 mm
1.500 mm
0.774 kg
63312ZZD1C3/EM
60.000 mm
130.000 mm
54.000 mm
3.500 mm
2.990 kg
6812ZZC3
60.000 mm
78.000 mm
10.000 mm
0.300 mm
0.100 kg
63212ZZC3/EM
60.000 mm
110.000 mm
36.500 mm
2.500 mm
63312ZZD1C3
60.000 mm
130.000 mm
54.000 mm
3.500 mm
6912LLB
60.000 mm
85.000 mm
13.000 mm
1.000 mm
0.194 kg
6012LLB
60.000 mm
95.000 mm
18.000 mm
1.100 mm
0.413 kg
6212LLB
60.000 mm
110.000 mm
22.000 mm
1.500 mm
0.775 kg