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
MU7315L
75.000 mm
139.140 mm
46.000 mm
104.040 mm
3.180 mm
MU7315X
75.000 mm
139.140 mm
46.000 mm
104.040 mm
3.180 mm
MU7317L
85.000 mm
157.430 mm
51.000 mm
118.240 mm
3.960 mm
MU7307V
35.000 mm
67.940 mm
26.000 mm
50.670 mm
1.520 mm
MU7318L
90.000 mm
165.400 mm
54.000 mm
124.330 mm
3.960 mm
MU7307X
35.000 mm
67.940 mm
26.000 mm
50.670 mm
1.520 mm
MU7318X
90.000 mm
165.400 mm
54.000 mm
124.330 mm
3.960 mm
MU5309L
45.000 mm
86.110 mm
39.688 mm
64.310 mm
2.030 mm
MU5309X
45.000 mm
86.110 mm
39.688 mm
64.310 mm
2.030 mm
MU5310L
50.000 mm
94.490 mm
44.450 mm
70.640 mm
2.030 mm
MU5310X
50.000 mm
94.490 mm
44.450 mm
70.640 mm
2.030 mm
MU5311L
55.000 mm
103.610 mm
49.212 mm
77.340 mm
2.030 mm
MU5312L
60.000 mm
112.500 mm
53.975 mm
84.020 mm
2.540 mm
MU5312X
60.000 mm
112.500 mm
53.975 mm
84.020 mm
2.540 mm
MU5313L
65.000 mm
121.360 mm
58.738 mm
90.700 mm
2.540 mm
MU5313X
65.000 mm
121.360 mm
58.738 mm
90.700 mm
2.540 mm
MU5316L
80.000 mm
147.420 mm
68.262 mm
110.290 mm
3.180 mm
MU5306L
30.000 mm
60.400 mm
30.162 mm
44.250 mm
1.520 mm
0.354 kg
MU7305L
25.000 mm
53.420 mm
21.000 mm
37.490 mm
1.020 mm
MU5306X
30.000 mm
60.400 mm
30.162 mm
44.250 mm
1.520 mm