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
MU1219L
95.000 mm
151.230 mm
32.000 mm
121.030 mm
3.180 mm
MU1214V
70.000 mm
111.530 mm
24.000 mm
89.610 mm
2.540 mm
MU1219X
95.000 mm
151.230 mm
32.000 mm
121.030 mm
3.180 mm
MU1214X
70.000 mm
111.530 mm
24.000 mm
89.610 mm
2.540 mm
MU1220L
100.000 mm
161.210 mm
34.000 mm
128.450 mm
3.960 mm
MU1215L
75.000 mm
115.770 mm
25.000 mm
93.850 mm
2.540 mm
0.862 kg
MU1215M
75.000 mm
115.770 mm
25.000 mm
93.850 mm
2.540 mm
MU1210L
50.000 mm
79.550 mm
20.000 mm
63.960 mm
1.520 mm
0.341 kg
MU1210X
50.000 mm
79.550 mm
20.000 mm
63.960 mm
1.520 mm
MU1211L
55.000 mm
88.100 mm
21.000 mm
70.740 mm
2.030 mm
0.445 kg
MU1211V
55.000 mm
88.010 mm
21.000 mm
70.740 mm
2.030 mm
MU1211X
55.000 mm
88.010 mm
21.000 mm
70.740 mm
2.030 mm
MU1212L
60.000 mm
97.760 mm
22.000 mm
79.940 mm
2.030 mm
MU1026L
130.000 mm
182.580 mm
33.000 mm
154.560 mm
3.180 mm
2.341 kg
MU1212V
60.000 mm
97.760 mm
22.000 mm
79.940 mm
2.030 mm
0.517 kg
MU1205L
25.000 mm
44.860 mm
15.000 mm
34.320 mm
1.020 mm
0.088 kg
MU1212X
60.000 mm
97.760 mm
22.000 mm
79.940 mm
2.030 mm
MU1205X
25.000 mm
44.860 mm
15.000 mm
34.320 mm
1.020 mm
MU1213L
65.000 mm
105.820 mm
23.000 mm
85.340 mm
2.540 mm
0.726 kg
MU1207L
35.000 mm
62.480 mm
17.000 mm
47.290 mm
1.020 mm
0.194 kg