**NTN Needle Roller Bearings & Needle Roller and Cage Assemblies: Precision Performance for Demanding Applications**
NTN is a global leader in bearing technology, renowned for its high-performance needle roller bearings and needle roller and cage assemblies. These precision-engineered components are designed to deliver exceptional load capacity, durability, and efficiency in compact spaces, making them indispensable in industrial machinery, automotive systems, and precision equipment.
### **Technical Features & Design Advantages**
NTN’s needle roller bearings and cage assemblies are optimized for applications requiring high radial load support with minimal radial cross-section. Key features include:
– **High Load Capacity:** Despite their compact design, needle rollers provide a large load-bearing surface, enabling superior radial load handling compared to conventional ball bearings.
– **Space-Saving Design:** The slim profile reduces overall assembly size, making them ideal for applications with strict space constraints.
– **Precision Cage Guidance:** High-quality cages (typically steel or polymer) ensure smooth roller movement, reducing friction and wear while maintaining proper alignment.
– **Versatile Configurations:** Available in various designs, including drawn cup, solid, and open types, with options for sealed or open variants to suit different lubrication and contamination conditions.
– **Enhanced Durability:** Advanced heat treatment and surface finishing processes extend service life, even under high-speed or heavy-load conditions.
### **Performance Advantages**
NTN’s needle roller solutions excel in demanding environments due to:
– **Reduced Friction & Heat Generation:** Optimized roller geometry and cage design minimize energy loss, improving efficiency and reducing operating temperatures.
– **High-Speed Capability:** Precision balancing and low-mass rollers allow stable performance at elevated speeds.
– **Reliability in Harsh Conditions:** Resistant to shock loads, misalignment, and contamination, ensuring consistent operation in industrial and automotive settings.
### **Typical Applications**
These bearings are widely used in:
– **Automotive Systems:** Transmission components (gearboxes, differentials), engine accessories (rocker arms, cam followers), and steering mechanisms.
– **Industrial Machinery:** Printing presses, textile equipment, agricultural machinery, and construction gear where compact, high-load solutions are critical.
– **Precision Equipment:** Robotics, medical devices, and aerospace actuators requiring lightweight, high-rigidity bearing solutions.
By combining advanced engineering with rigorous quality control, NTN’s needle roller bearings and cage assemblies provide unmatched performance, reliability, and longevity—ensuring optimal functionality in the most challenging applications. Whether enhancing automotive efficiency or supporting heavy industrial loads, NTN delivers precision you can trust.
Part Number | Fw | Ew | Bc | Mass |
---|---|---|---|---|
25.400 mm |
33.338 mm |
19.050 mm |
0.032 kg |
|
50.000 mm |
55.000 mm |
20.000 mm |
0.040 kg |
|
25.400 mm |
33.338 mm |
25.400 mm |
0.044 kg |
|
50.000 mm |
58.000 mm |
58.000 mm |
0.188 kg |
|
28.575 mm |
38.100 mm |
25.400 mm |
0.058 kg |
|
52.000 mm |
57.000 mm |
18.000 mm |
0.037 kg |
|
52.000 mm |
57.000 mm |
23.000 mm |
0.048 kg |
|
40.000 mm |
46.000 mm |
34.000 mm |
0.063 kg |
|
40.000 mm |
48.000 mm |
25.000 mm |
0.065 kg |
|
43.000 mm |
48.000 mm |
38.000 mm |
0.058 kg |
|
44.000 mm |
50.000 mm |
31.000 mm |
0.067 kg |
|
44.000 mm |
50.000 mm |
41.800 mm |
||
45.000 mm |
50.000 mm |
25.800 mm |
0.045 kg |
|
14.000 mm |
17.000 mm |
10.000 mm |
0.004 kg |
|
45.000 mm |
51.000 mm |
27.000 mm |
0.058 kg |
|
15.000 mm |
19.000 mm |
8.000 mm |
0.003 kg |
|
47.000 mm |
52.000 mm |
23.000 mm |
0.044 kg |
|
30.000 mm |
34.000 mm |
14.000 mm |
0.014 kg |
|
47.000 mm |
52.000 mm |
33.000 mm |
0.064 kg |
|
30.000 mm |
35.000 mm |
13.000 mm |
0.017 kg |