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
MU7306L
30.000 mm
60.400 mm
23.000 mm
44.250 mm
1.520 mm
0.281 kg
MU5307L
35.000 mm
67.940 mm
34.925 mm
50.670 mm
1.520 mm
0.494 kg
MU7306X
30.000 mm
60.400 mm
23.000 mm
44.250 mm
1.520 mm
MU5307X
35.000 mm
67.940 mm
34.925 mm
50.670 mm
1.520 mm
MU7307L
35.000 mm
67.940 mm
26.000 mm
50.670 mm
1.520 mm
MU5308L
40.000 mm
77.670 mm
36.512 mm
57.000 mm
1.520 mm
MU5308X
40.000 mm
77.670 mm
36.512 mm
57.000 mm
1.520 mm
MU5218X
90.000 mm
142.190 mm
52.388 mm
114.170 mm
3.180 mm
MU5219L
95.000 mm
151.230 mm
55.562 mm
121.030 mm
3.180 mm
MU5219X
95.000 mm
151.230 mm
55.562 mm
121.030 mm
3.180 mm
MU5220L
100.000 mm
161.210 mm
60.325 mm
128.450 mm
3.960 mm
MU5220X
100.000 mm
161.210 mm
60.325 mm
128.450 mm
3.960 mm
MU5222L
110.000 mm
176.200 mm
69.850 mm
141.600 mm
3.960 mm
MU5214L
70.000 mm
111.530 mm
39.688 mm
89.610 mm
2.540 mm
1.305 kg
MU5224L
120.000 mm
190.960 mm
76.200 mm
154.300 mm
4.750 mm
MU5214X
70.000 mm
111.530 mm
39.688 mm
89.610 mm
2.540 mm
MU5226L
130.000 mm
206.380 mm
79.375 mm
164.720 mm
4.750 mm
MU5215L
75.000 mm
115.770 mm
41.275 mm
93.850 mm
2.540 mm
1.423 kg
MU5304L
20.000 mm
43.970 mm
22.225 mm
30.970 mm
1.020 mm
MU5215X
75.000 mm
115.700 mm
41.275 mm
93.850 mm
2.540 mm