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
6204LLUAC3/EM
20.000 mm
47.000 mm
14.000 mm
1.000 mm
6304HT200
20.000 mm
52.000 mm
15.000 mm
1.100 mm
6204LLUAC4
20.000 mm
47.000 mm
14.000 mm
1.000 mm
6304LLUAC3
20.000 mm
52.000 mm
15.000 mm
1.100 mm
TS3-6204LLUA1C4#02
20.000 mm
47.000 mm
14.000 mm
1.000 mm
6304LLH
20.000 mm
52.000 mm
15.000 mm
1.100 mm
0.144 kg
6304EX3T2XLLHAC3#01
20.000 mm
52.000 mm
15.000 mm
1.100 mm
0.137 kg
6004LLH
20.000 mm
42.000 mm
12.000 mm
0.600 mm
0.066 kg
6004LLHC3
20.000 mm
42.000 mm
12.000 mm
0.600 mm
6004LLU-BV47
20.000 mm
42.000 mm
12.000 mm
0.600 mm
0.066 kg
6204LLU
20.000 mm
47.000 mm
14.000 mm
1.000 mm
0.103 kg
6204LLUP5/EM
20.000 mm
47.000 mm
14.000 mm
1.000 mm
6204LLUC3/EM
20.000 mm
47.000 mm
14.000 mm
1.000 mm
0.103 kg
6304LLUC2
20.000 mm
52.000 mm
15.000 mm
1.100 mm
6204LLUC4
20.000 mm
47.000 mm
14.000 mm
1.000 mm
0.103 kg
6804LLUC3
20.000 mm
32.000 mm
7.000 mm
0.300 mm
6304LLU
20.000 mm
52.000 mm
15.000 mm
1.100 mm
0.145 kg
TMB204LLUC3
20.000 mm
47.000 mm
14.000 mm
1.000 mm
6304LLU/LP03
20.000 mm
52.000 mm
15.000 mm
1.100 mm
0.137 kg
6304LLUC3/EM
20.000 mm
52.000 mm
15.000 mm
1.100 mm
0.145 kg
63204LLU
20.000 mm
47.000 mm
20.600 mm
1.000 mm
0.149 kg
63304LLU
20.000 mm
52.000 mm
22.200 mm
1.100 mm
0.210 kg
6804LLU
20.000 mm
32.000 mm
7.000 mm
0.300 mm
0.017 kg
6904LLU
20.000 mm
37.000 mm
9.000 mm
0.300 mm
0.031 kg