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
6904LLUC3/EM
20.000 mm
37.000 mm
9.000 mm
0.300 mm
0.031 kg
6204LLUV21
20.000 mm
47.000 mm
14.000 mm
1.000 mm
0.105 kg
6204LLUC3
20.000 mm
47.000 mm
14.000 mm
1.000 mm
0.103 kg
6204LLUC3/4M
20.000 mm
47.000 mm
14.000 mm
1.000 mm
0.103 kg
6204LLU/LP03
20.000 mm
47.000 mm
14.000 mm
1.000 mm
0.099 kg
6004LLBP5
20.000 mm
42.000 mm
12.000 mm
0.600 mm
0.068 kg
6004LLUC3/EM
20.000 mm
42.000 mm
12.000 mm
0.600 mm
0.068 kg
6204LLB/LP03
20.000 mm
47.000 mm
14.000 mm
1.000 mm
0.099 kg
6204LLBC2
20.000 mm
47.000 mm
14.000 mm
1.000 mm
6204LLBC3/9B
20.000 mm
47.000 mm
14.000 mm
1.000 mm
0.104 kg
6204LLBC3/EM
20.000 mm
47.000 mm
14.000 mm
1.000 mm
0.104 kg
6204LLBP4
20.000 mm
47.000 mm
14.000 mm
1.000 mm
0.106 kg
6204LLBP5
20.000 mm
47.000 mm
14.000 mm
1.000 mm
0.106 kg
63204LLB
20.000 mm
47.000 mm
20.600 mm
1.000 mm
0.150 kg
63204LLBC3/EM
20.000 mm
47.000 mm
20.600 mm
1.000 mm
0.150 kg
63304LLBC3/EM
20.000 mm
52.000 mm
22.200 mm
1.100 mm
0.210 kg
6704LLF
20.000 mm
27.000 mm
4.000 mm
0.200 mm
0.006 kg
6904LLBC3/EM
20.000 mm
37.000 mm
9.000 mm
0.300 mm
0.031 kg
6204LLB/4M
20.000 mm
47.000 mm
14.000 mm
1.000 mm
0.104 kg
6004LLB/LP03
20.000 mm
42.000 mm
12.000 mm
0.600 mm
0.068 kg
6704LLFC3
20.000 mm
27.000 mm
4.000 mm
0.200 mm
6004LLBC3/EM
20.000 mm
42.000 mm
12.000 mm
0.600 mm
0.068 kg
6804LLBC3
20.000 mm
32.000 mm
7.000 mm
0.300 mm
6004LLBP4
20.000 mm
42.000 mm
12.000 mm
0.600 mm
0.069 kg