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
6988C3
440.000 mm
600.000 mm
74.000 mm
4.000 mm
61.200 kg
69/500C3
500.000 mm
670.000 mm
78.000 mm
5.000 mm
6888C3
440.000 mm
540.000 mm
46.000 mm
2.100 mm
21.620 kg
68/530
530.000 mm
650.000 mm
56.000 mm
3.000 mm
38.200 kg
6888
440.000 mm
540.000 mm
46.000 mm
2.100 mm
6080
400.000 mm
600.000 mm
90.000 mm
5.000 mm
87.600 kg
6080C3
400.000 mm
600.000 mm
90.000 mm
5.000 mm
87.600 kg
6880C3
400.000 mm
500.000 mm
46.000 mm
2.100 mm
20.500 kg
6880
400.000 mm
500.000 mm
46.000 mm
2.100 mm
6980
400.000 mm
540.000 mm
65.000 mm
4.000 mm
6980C3
400.000 mm
540.000 mm
65.000 mm
4.000 mm
SC8011CS182
400.000 mm
720.000 mm
130.000 mm
240.000 kg
6872
360.000 mm
440.000 mm
38.000 mm
2.100 mm
6084
420.000 mm
620.000 mm
90.000 mm
5.000 mm
91.100 kg
6972
360.000 mm
480.000 mm
56.000 mm
3.000 mm
6084C3
420.000 mm
620.000 mm
90.000 mm
5.000 mm
6972C3
360.000 mm
480.000 mm
56.000 mm
3.000 mm
6884C3
420.000 mm
520.000 mm
46.000 mm
2.100 mm
21.600 kg
6076
380.000 mm
560.000 mm
82.000 mm
5.000 mm
67.500 kg
6884
420.000 mm
520.000 mm
46.000 mm
2.100 mm