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
6930L1
150.000 mm
210.000 mm
28.000 mm
2.000 mm
2.980 kg
6030
150.000 mm
225.000 mm
35.000 mm
2.100 mm
4.080 kg
6028ZZC3/EM
140.000 mm
210.000 mm
33.000 mm
2.000 mm
3.350 kg
6230
150.000 mm
270.000 mm
45.000 mm
3.000 mm
9.410 kg
6228ZZC3/EM
140.000 mm
250.000 mm
42.000 mm
3.000 mm
7.570 kg
6330
150.000 mm
320.000 mm
65.000 mm
4.000 mm
22.000 kg
6028LLU
140.000 mm
210.000 mm
33.000 mm
2.000 mm
3.490 kg
6030C3
150.000 mm
225.000 mm
35.000 mm
2.100 mm
4.080 kg
6028LLUC3
140.000 mm
210.000 mm
33.000 mm
2.000 mm
3.490 kg
6230C3
150.000 mm
270.000 mm
45.000 mm
3.000 mm
9.410 kg
6228LLU
140.000 mm
250.000 mm
42.000 mm
3.000 mm
7.570 kg
6228LLUC3/EM
140.000 mm
250.000 mm
42.000 mm
3.000 mm
7.570 kg
6828LLU
140.000 mm
175.000 mm
18.000 mm
1.100 mm
0.800 kg
6928LLU
140.000 mm
190.000 mm
24.000 mm
1.500 mm
1.640 kg
6828ZZ
140.000 mm
175.000 mm
18.000 mm
1.100 mm
0.810 kg
6030LU
150.000 mm
225.000 mm
35.000 mm
2.100 mm
4.230 kg
6030LUC3
150.000 mm
225.000 mm
35.000 mm
2.100 mm
6030Z
150.000 mm
225.000 mm
35.000 mm
2.100 mm
4.220 kg
6030ZC3
150.000 mm
225.000 mm
35.000 mm
2.100 mm
4.220 kg
6830NR
150.000 mm
190.000 mm
20.000 mm
1.100 mm
1.210 kg
6830NRC3
150.000 mm
190.000 mm
20.000 mm
1.100 mm
1.210 kg
6028L1C3
140.000 mm
210.000 mm
33.000 mm
2.000 mm
3.350 kg
6928ZZ
140.000 mm
190.000 mm
24.000 mm
1.500 mm
1.650 kg
6228L1C3
140.000 mm
250.000 mm
42.000 mm
3.000 mm
7.570 kg