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
6205LLUN
25.000 mm
52.000 mm
15.000 mm
1.000 mm
6305LLUN
25.000 mm
62.000 mm
17.000 mm
1.100 mm
6305LLUNC3
25.000 mm
62.000 mm
17.000 mm
1.100 mm
6805LLUN
25.000 mm
37.000 mm
7.000 mm
0.300 mm
6805LLUNC3
25.000 mm
37.000 mm
7.000 mm
0.300 mm
6905LLUN
25.000 mm
42.000 mm
9.000 mm
0.300 mm
6905LLUNC3
25.000 mm
42.000 mm
9.000 mm
0.300 mm
6205ZZN
25.000 mm
52.000 mm
15.000 mm
1.000 mm
0.130 kg
6205ZZNC3
25.000 mm
52.000 mm
15.000 mm
1.000 mm
0.130 kg
6005ZZN
25.000 mm
47.000 mm
12.000 mm
0.600 mm
0.079 kg
6005ZZNC3
25.000 mm
47.000 mm
12.000 mm
0.600 mm
6905LLBN
25.000 mm
42.000 mm
9.000 mm
0.300 mm
6305ZZN
25.000 mm
62.000 mm
17.000 mm
1.100 mm
6905LLBNC3
25.000 mm
42.000 mm
9.000 mm
0.300 mm
6305ZZNC3
25.000 mm
62.000 mm
17.000 mm
1.100 mm
6205LLUNC3
25.000 mm
52.000 mm
15.000 mm
1.000 mm
0.121 kg
6805ZZN
25.000 mm
37.000 mm
7.000 mm
0.300 mm
6205ZC4
25.000 mm
52.000 mm
15.000 mm
1.000 mm
0.121 kg
6905ZC3
25.000 mm
42.000 mm
9.000 mm
0.300 mm
0.044 kg
6805Z
25.000 mm
37.000 mm
7.000 mm
0.300 mm
0.019 kg
61905-2Z
25.000 mm
42.000 mm
9.000 mm
0.300 mm
6805ZC3
25.000 mm
37.000 mm
7.000 mm
0.300 mm
6305LLBN
25.000 mm
62.000 mm
17.000 mm
1.100 mm
6305LLBNC3
25.000 mm
62.000 mm
17.000 mm
1.100 mm