Expansion Compensating Bearings

**NTN Ball Bearings: High-Performance Deep Groove & Expansion Compensating Bearings for Demanding Applications**

NTN Corporation, a global leader in precision bearing technology, offers an extensive range of high-performance **Deep Groove Ball Bearings** and specialized **Expansion Compensating Bearings**, engineered to deliver exceptional reliability, durability, and efficiency in industrial, automotive, and precision applications. Designed with advanced materials, precision manufacturing, and innovative engineering, NTN’s bearings ensure optimal performance under varying loads, speeds, and environmental conditions.

### **Technical Features & Design Advantages**

#### **Deep Groove Ball Bearings**
NTN’s **Deep Groove Ball Bearings** are among the most versatile bearing solutions, featuring a simple yet robust design with deep raceway grooves that accommodate radial, axial, and combined loads. Key technical highlights include:
– **High-Speed Capability**: Optimized internal geometry and superior surface finishes minimize friction, enabling smooth operation at high rotational speeds.
– **Low Noise & Vibration**: Precision-ground balls and raceways reduce operational noise, making them ideal for electric motors, HVAC systems, and automotive components.
– **Sealed & Shielded Options**: Available with rubber seals (RS, 2RS) or metal shields (ZZ) for enhanced contamination protection and extended lubrication life.
– **Material Innovations**: High-grade chrome steel, stainless steel, or ceramic hybrid options provide corrosion resistance and extended service life in harsh environments.

#### **Expansion Compensating Bearings**
For applications requiring thermal expansion accommodation or shaft misalignment tolerance, NTN’s **Expansion Compensating Bearings** offer a specialized solution:
– **Axial Displacement Compensation**: Designed to absorb axial displacement caused by thermal expansion in long shafts, preventing premature bearing failure.
– **Self-Aligning Capability**: Accommodates minor shaft misalignments, reducing stress on adjacent components.
– **Robust Construction**: Reinforced cages and high-load capacity designs ensure stability in heavy machinery, conveyor systems, and automotive drivetrains.

### **Performance Benefits**
– **Extended Service Life**: Advanced heat treatment processes and premium lubricants enhance wear resistance.
– **Energy Efficiency**: Reduced friction lowers power consumption, contributing to sustainability in industrial and automotive systems.
– **Maintenance Reduction**: Sealed variants minimize relubrication needs, ideal for hard-to-access applications.

### **Typical Applications**
– **Industrial Machinery**: Pumps, compressors, gearboxes, and electric motors.
– **Automotive Systems**: Alternators, wheel hubs, transmissions, and EV components.
– **Precision Equipment**: Medical devices, robotics, and semiconductor manufacturing tools.

NTN’s **Deep Groove Ball Bearings** and **Expansion Compensating Bearings** exemplify the company’s commitment to innovation, ensuring superior performance in the most demanding operational environments. Whether for high-speed automation or heavy-load industrial systems, NTN delivers precision-engineered solutions that enhance efficiency and reliability.

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Part Number d D B r Mass
EC-6300C3
10.000 mm
35.000 mm
11.000 mm
0.600 mm
EC-6300LLB
10.000 mm
35.000 mm
11.000 mm
0.600 mm
EC-6300LLBC3
10.000 mm
35.000 mm
11.000 mm
0.600 mm
EC-6300LLU
10.000 mm
35.000 mm
11.000 mm
0.600 mm
EC-6300LLUC3
10.000 mm
35.000 mm
11.000 mm
0.600 mm
EC-6300ZZ
10.000 mm
35.000 mm
11.000 mm
0.600 mm
EC-6300ZZC3
10.000 mm
35.000 mm
11.000 mm
0.600 mm
EC-6301
12.000 mm
37.000 mm
12.000 mm
1.000 mm
EC-6301C3
12.000 mm
37.000 mm
12.000 mm
1.000 mm
EC-6301LLB
12.000 mm
37.000 mm
12.000 mm
1.000 mm
EC-6301LLBC3
12.000 mm
37.000 mm
12.000 mm
1.000 mm
0.060 kg
EC-6301LLU
12.000 mm
37.000 mm
12.000 mm
1.000 mm
EC-6210ZZ
50.000 mm
90.000 mm
20.000 mm
1.100 mm
EC-6301LLUC3
12.000 mm
37.000 mm
12.000 mm
1.000 mm
EC-6210ZZC3
50.000 mm
90.000 mm
20.000 mm
1.100 mm
EC-6301ZZ
12.000 mm
37.000 mm
12.000 mm
1.000 mm
EC-629X50LLBC3
9.000 mm
26.000 mm
8.000 mm
0.600 mm
EC-6301ZZC3
12.000 mm
37.000 mm
12.000 mm
1.000 mm
EC-6209C3
45.000 mm
85.000 mm
19.000 mm
1.100 mm
EC-6209LLB
45.000 mm
85.000 mm
19.000 mm
1.100 mm