Inner Ring with Cage and Rollers

**Introduction to NTN Cylindrical Roller Bearings: Inner Ring with Cage and Rollers**

NTN cylindrical roller bearings are engineered to deliver exceptional performance in high-load, high-speed applications where precision and durability are critical. Among NTN’s extensive bearing portfolio, the **Cylindrical Roller Bearing Inner Ring with Cage and Rollers** stands out as a key component designed to optimize load distribution, minimize friction, and extend service life in demanding industrial and automotive environments.

### **Technical Features & Design Advantages**
The inner ring assembly—comprising the inner ring, precision rollers, and a robust cage—is meticulously crafted to meet stringent quality standards. Key features include:

– **High-Load Capacity**: The optimized roller-to-raceway contact distributes radial loads evenly, making these bearings ideal for heavy machinery and automotive transmissions.
– **Precision-Ground Components**: NTN’s advanced manufacturing ensures tight tolerances and smooth surface finishes, reducing vibration and noise in high-speed applications.
– **Advanced Cage Design**: The cage (typically made of pressed steel or engineered polymers) retains rollers securely, preventing skewing and ensuring consistent alignment under dynamic conditions.
– **Heat Treatment & Material Science**: NTN uses premium alloy steels and specialized heat treatments to enhance hardness and fatigue resistance, prolonging bearing life even in harsh operating conditions.
– **Lubrication Efficiency**: The inner ring’s geometry facilitates optimal lubricant flow, reducing wear and preventing overheating.

### **Performance Benefits**
NTN’s cylindrical roller bearing assemblies excel in applications requiring:
– **High Radial Load Support**: Superior to ball bearings in handling heavy radial loads, making them suitable for gearboxes, machine tools, and industrial drivetrains.
– **Speed Stability**: Low friction and balanced rollers enable stable operation at elevated speeds, critical for automotive wheel hubs and electric motors.
– **Durability in Harsh Environments**: Resistant to misalignment and shock loads, these bearings perform reliably in mining, construction, and steel mill equipment.

### **Typical Applications**
NTN’s cylindrical roller bearing components are widely used across industries, including:
– **Industrial Machinery**: Machine tool spindles, conveyor systems, and printing presses.
– **Automotive Systems**: Transmissions, differentials, and wheel ends where high radial stiffness is required.
– **Precision Equipment**: Robotics, wind turbines, and aerospace actuators demanding low noise and high accuracy.

By integrating NTN’s cylindrical roller bearing inner rings with cages and rollers, engineers can achieve enhanced efficiency, reduced maintenance costs, and extended equipment lifespan—making them a trusted choice for mission-critical applications worldwide.

For industries prioritizing reliability under load and speed, NTN’s engineering excellence ensures peak performance in even the most challenging operational environments.

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Part Number B C W F R Mass
MU5208X
40.000 mm
69.620 mm
30.162 mm
53.440 mm
1.520 mm
MU5209L
45.000 mm
74.980 mm
30.162 mm
59.030 mm
1.520 mm
MU5209X
45.000 mm
74.980 mm
30.162 mm
59.030 mm
1.520 mm
MU5210L
50.000 mm
79.550 mm
30.162 mm
63.960 mm
1.520 mm
0.513 kg
MU5210X
50.000 mm
79.550 mm
30.162 mm
63.960 mm
1.520 mm
MU5211L
55.000 mm
88.010 mm
33.338 mm
70.740 mm
2.030 mm
0.699 kg
MU5211X
55.000 mm
88.010 mm
33.338 mm
70.740 mm
2.030 mm
MU5212L
60.000 mm
97.760 mm
36.512 mm
76.940 mm
2.030 mm
0.951 kg
MU5212X
60.000 mm
97.760 mm
36.512 mm
76.940 mm
2.030 mm
MU5213L
65.000 mm
105.820 mm
38.100 mm
85.340 mm
2.540 mm
1.166 kg
MU5213X
65.000 mm
105.820 mm
38.100 mm
85.340 mm
2.540 mm
MU1315X
75.000 mm
139.140 mm
37.000 mm
104.040 mm
3.180 mm
MU1316L
80.000 mm
147.420 mm
39.000 mm
110.290 mm
3.180 mm
2.613 kg
MU1317L
85.000 mm
157.430 mm
41.000 mm
118.240 mm
3.960 mm
3.094 kg
MU1318L
90.000 mm
165.400 mm
43.000 mm
124.330 mm
3.960 mm
MU1318V
90.000 mm
165.400 mm
43.000 mm
124.330 mm
3.960 mm
3.387 kg
MU1318X
90.000 mm
165.400 mm
43.000 mm
124.330 mm
3.960 mm
MU1319L
95.000 mm
173.530 mm
45.000 mm
132.460 mm
3.960 mm
3.917 kg
MU1319X
95.000 mm
173.530 mm
56.000 mm
132.460 mm
3.960 mm
MU1320L
100.000 mm
184.910 mm
47.000 mm
140.460 mm
4.750 mm
4.899 kg
MU1320X
100.000 mm
184.910 mm
47.000 mm
140.460 mm
4.750 mm
MU1321L
105.000 mm
193.450 mm
49.000 mm
147.170 mm
4.750 mm
5.813 kg
MU1321V
105.000 mm
193.450 mm
49.000 mm
147.170 mm
4.750 mm
MU1921V
105.000 mm
134.750 mm
20.000 mm
118.920 mm
1.520 mm
0.553 kg