Inner Ring for Cylindrical Roller Bearings

**NTN Cylindrical Roller Bearings: Precision Engineered for Demanding Applications**

NTN cylindrical roller bearings are renowned for their exceptional load capacity, durability, and precision, making them a preferred choice for industrial machinery, automotive systems, and high-performance equipment. Designed to handle heavy radial loads and high-speed operations, these bearings incorporate advanced engineering to ensure reliability in even the most demanding environments. Among their key components, the **inner ring for cylindrical roller bearings** plays a critical role in maintaining structural integrity and operational efficiency.

### **Technical Features & Design Advantages**
The **NTN cylindrical roller bearing inner ring** is precision-machined from high-quality steel, undergoing rigorous heat treatment processes to enhance hardness and fatigue resistance. Its optimized raceway geometry ensures smooth roller movement, reducing friction and minimizing wear over extended service life. Key features include:

– **High Radial Load Capacity**: The inner ring’s robust construction supports substantial radial loads, making it ideal for heavy machinery such as gearboxes, pumps, and construction equipment.
– **Precision Ground Surfaces**: Ultra-precise machining ensures tight tolerances, reducing vibration and noise in high-speed applications like electric motors or machine tool spindles.
– **Advanced Heat Treatment**: Carburizing or induction hardening processes improve surface durability while maintaining core toughness, preventing premature failure under shock or variable loads.
– **Optimized Roller Guidance**: The inner ring’s flange design (where applicable) ensures proper roller alignment, preventing skewing and ensuring even load distribution.

### **Performance Benefits**
NTN’s cylindrical roller bearing components are engineered to deliver superior performance in harsh conditions:
– **Extended Service Life**: Reduced friction and wear-resistant materials enhance longevity, lowering maintenance costs.
– **High-Speed Capability**: Precision balancing and optimized internal clearances allow stable operation at elevated speeds, critical for automotive transmissions or industrial drivetrains.
– **Versatility**: Available in single-row, double-row, and multi-row configurations, NTN bearings accommodate diverse load and space requirements.

### **Typical Applications**
NTN cylindrical roller bearings and their inner ring components are widely used in:
– **Industrial Machinery**: Presses, conveyors, and mining equipment requiring high radial load support.
– **Automotive Systems**: Wheel hubs, transmissions, and differentials where durability and precision are paramount.
– **Precision Equipment**: Machine tools, robotics, and aerospace systems demanding low vibration and high rotational accuracy.

By combining cutting-edge materials, precision manufacturing, and rigorous testing, NTN ensures that its cylindrical roller bearing components deliver unmatched reliability and efficiency. Whether in heavy industrial settings or high-performance automotive applications, NTN’s engineering excellence provides a competitive edge in operational performance and longevity.

For industries that demand durability under load, speed, and precision, NTN cylindrical roller bearings—and their critical inner ring components—stand as a trusted solution.

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Part Number B W R Mass
MRC1314
70.000 mm
35.000 mm
3.180 mm
0.680 kg
WR61918
90.000 mm
18.000 mm
N/A
0.168 kg
MRD1313
65.000 mm
33.000 mm
2.540 mm
0.590 kg
WRB61312
60.000 mm
31.000 mm
N/A
0.399 kg
MS1012
60.000 mm
N/A
1.520 mm
0.112 kg
WRB61314
70.000 mm
35.000 mm
N/A
0.662 kg
MR7309
45.000 mm
31.000 mm
2.030 mm
0.296 kg
MR7314
70.000 mm
43.000 mm
3.180 mm
0.844 kg
MRB1015
74.978 mm
23.622 mm
1.010 mm
0.246 kg
MRB1305
25.000 mm
17.000 mm
2.159 mm
0.054 kg
MRB1306
30.000 mm
19.000 mm
1.520 mm
0.091 kg
MRB1308
33.338 mm
24.000 mm
1.520 mm
0.244 kg
MRB1310
50.000 mm
27.000 mm
2.030 mm
0.305 kg
MRB1312
63.497 mm
31.000 mm
3.175 mm
0.396 kg
MRB1315
74.971 mm
37.000 mm
3.180 mm
0.856 kg
MR5211
55.000 mm
33.338 mm
2.030 mm
0.308 kg
MRB1316
79.979 mm
40.640 mm
3.180 mm
1.043 kg
MR5212
60.000 mm
36.512 mm
2.030 mm
0.381 kg
MRB7313
65.000 mm
40.000 mm
2.540 mm
0.708 kg
MR5213
65.000 mm
38.100 mm
2.540 mm
0.544 kg