**NTN Needle Roller Bearings: Precision, Durability, and Compact Performance for Demanding Applications**
NTN is a globally recognized leader in bearing technology, and its **Needle Roller Bearings (Complex Bearings with Inner Ring)** exemplify the company’s commitment to precision engineering, durability, and space-saving design. These specialized bearings are engineered to deliver exceptional load capacity, reduced friction, and long service life in compact assemblies—making them indispensable for high-performance automotive systems, industrial machinery, and precision equipment where space constraints and reliability are critical.
### **Technical Features & Design Advantages**
NTN’s **Needle Roller Bearings (Complex Bearings with Inner Ring)** integrate a hardened inner ring with precision-ground needle rollers and a robust outer ring or housing, ensuring optimal load distribution and smooth rotational performance. Key features include:
– **High Load Capacity:** The needle rollers provide a large contact area, enabling superior radial load handling compared to conventional ball bearings—ideal for applications with heavy dynamic or shock loads.
– **Compact & Lightweight Design:** By eliminating the need for a separate inner ring in some configurations, these bearings minimize space requirements while maintaining strength, making them perfect for tight installations in transmissions, engines, and gearboxes.
– **Low Friction & High-Speed Capability:** Precision-ground rollers and optimized surface finishes reduce friction and heat generation, supporting high rotational speeds with minimal energy loss.
– **Enhanced Durability:** Advanced heat treatment processes and high-quality steel extend bearing life, even in harsh environments with contaminants or misalignment challenges.
– **Versatile Sealing Options:** NTN offers shielded or sealed variants to protect against debris and retain lubrication, ensuring consistent performance in dirty or high-temperature conditions.
### **Performance Benefits for Critical Applications**
NTN’s needle roller bearings excel in applications where reliability, compactness, and load-bearing efficiency are paramount:
– **Automotive Systems:** Widely used in transmissions, differentials, clutch release mechanisms, and engine components (e.g., rocker arm pivots), these bearings reduce weight and improve fuel efficiency without sacrificing durability.
– **Industrial Machinery:** Ideal for construction equipment, agricultural machinery, and hydraulic pumps, where shock resistance and space optimization are crucial.
– **Precision Equipment:** Employed in robotics, printing presses, and medical devices, where smooth motion control and minimal maintenance are required.
### **Why Choose NTN?**
With decades of expertise in bearing innovation, NTN ensures rigorous quality control, advanced material science, and custom engineering solutions tailored to specific operational demands. Whether for OEM automotive designs or heavy-duty industrial applications, NTN’s **Needle Roller Bearings (Complex Bearings with Inner Ring)** provide unmatched performance, longevity, and efficiency—driving productivity across industries.
For engineers and designers seeking a reliable, high-capacity bearing solution in constrained spaces, NTN’s needle roller technology delivers the perfect balance of strength, precision, and compact design.
Part Number | d | dw | D | D1 | F | Mass |
---|---|---|---|---|---|---|
30.000 mm |
35.000 mm |
47.000 mm |
52.000 mm |
35.000 mm |
||
30.000 mm |
35.000 mm |
47.000 mm |
53.000 mm |
35.000 mm |
||
35.000 mm |
40.000 mm |
52.000 mm |
60.000 mm |
40.000 mm |
||
35.000 mm |
40.000 mm |
52.000 mm |
61.000 mm |
40.000 mm |
||
40.000 mm |
45.000 mm |
58.000 mm |
65.000 mm |
45.000 mm |
||
40.000 mm |
45.000 mm |
58.000 mm |
66.500 mm |
45.000 mm |
||
12.000 mm |
15.000 mm |
24.000 mm |
28.000 mm |
15.000 mm |
||
45.000 mm |
50.000 mm |
62.000 mm |
70.000 mm |
50.000 mm |
||
12.000 mm |
15.000 mm |
24.000 mm |
29.000 mm |
15.000 mm |
||
45.000 mm |
50.000 mm |
62.000 mm |
71.500 mm |
50.000 mm |
||
14.000 mm |
17.000 mm |
26.000 mm |
30.000 mm |
17.000 mm |
||
14.000 mm |
17.000 mm |
26.000 mm |
31.000 mm |
17.000 mm |
||
17.000 mm |
20.000 mm |
30.000 mm |
35.000 mm |
20.000 mm |
||
17.000 mm |
20.000 mm |
30.000 mm |
36.000 mm |
20.000 mm |
||
20.000 mm |
25.000 mm |
37.000 mm |
42.000 mm |
25.000 mm |
||
20.000 mm |
25.000 mm |
37.000 mm |
43.000 mm |
25.000 mm |
||
25.000 mm |
30.000 mm |
42.000 mm |
47.000 mm |
30.000 mm |
||
25.000 mm |
30.000 mm |
42.000 mm |
48.000 mm |
30.000 mm |
||
45.000 mm |
50.000 mm |
62.000 mm |
70.000 mm |
50.000 mm |
0.373 kg |
|
45.000 mm |
50.000 mm |
62.000 mm |
71.500 mm |
50.000 mm |
0.389 kg |