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
6812NC3
60.000 mm
78.000 mm
10.000 mm
0.300 mm
6212ZZC3/EM
60.000 mm
110.000 mm
22.000 mm
1.500 mm
0.774 kg
6912N
60.000 mm
85.000 mm
13.000 mm
1.000 mm
6912NC3
60.000 mm
85.000 mm
13.000 mm
1.000 mm
6912ZZ
60.000 mm
85.000 mm
13.000 mm
1.000 mm
0.191 kg
6012LLBNRC3
60.000 mm
95.000 mm
18.000 mm
1.100 mm
6812LLBNR
60.000 mm
78.000 mm
10.000 mm
0.300 mm
6812LLBNRC3
60.000 mm
78.000 mm
10.000 mm
0.300 mm
6912LLBNR
60.000 mm
85.000 mm
13.000 mm
1.000 mm
6912LLBNRC3
60.000 mm
85.000 mm
13.000 mm
1.000 mm
6312LLUNR
60.000 mm
130.000 mm
31.000 mm
2.100 mm
1.770 kg
6212N
60.000 mm
110.000 mm
22.000 mm
1.500 mm
0.782 kg
6312LLUNRC3
60.000 mm
130.000 mm
31.000 mm
2.100 mm
1.710 kg
6212NC3
60.000 mm
110.000 mm
22.000 mm
1.500 mm
0.782 kg
6812LLUNR
60.000 mm
78.000 mm
10.000 mm
0.300 mm
6012N
60.000 mm
95.000 mm
18.000 mm
1.100 mm
0.402 kg
6812LLUNRC3
60.000 mm
78.000 mm
10.000 mm
0.300 mm
6012NC3
60.000 mm
95.000 mm
18.000 mm
1.100 mm
6912LLUNR
60.000 mm
85.000 mm
13.000 mm
1.000 mm
6912LLUNRC3
60.000 mm
85.000 mm
13.000 mm
1.000 mm
6012LLBNR
60.000 mm
95.000 mm
18.000 mm
1.100 mm
0.432 kg
6212LLBNR
60.000 mm
110.000 mm
22.000 mm
1.500 mm
0.804 kg
6312LLBNRC3
60.000 mm
130.000 mm
31.000 mm
2.100 mm
1.760 kg
6312LLBNR
60.000 mm
130.000 mm
31.000 mm
2.100 mm
1.752 kg