**NTN Needle Roller Thrust Bearings & Double Row Thrust Roller Bearings: Precision, Durability, and High-Load Performance**
NTN is a global leader in bearing technology, and its range of **Needle Roller Thrust Bearings** and **Double Row Thrust Roller Bearings** exemplifies the company’s commitment to high-performance, compact, and durable solutions for demanding applications. These bearings are engineered to handle heavy axial loads while maintaining precision, making them ideal for industrial machinery, automotive systems, and precision equipment where space constraints and reliability are critical.
### **Technical Features & Design Advantages**
NTN’s **Needle Roller Thrust Bearings** utilize slender, high-strength needle rollers arranged in a flat or slightly crowned configuration, enabling them to support high axial loads in a minimal axial space. Their compact design is complemented by hardened raceways and precision-ground rollers, ensuring smooth operation and extended service life even under severe conditions.
For even greater load capacity and stability, NTN’s **Double Row Thrust Roller Bearings** feature two rows of rollers arranged in a robust cage, distributing axial loads more evenly and reducing stress concentrations. This design enhances rigidity and minimizes deflection, making them suitable for applications with heavy combined axial and moment loads.
Key features include:
– **High Load Capacity:** Optimized roller geometry and hardened steel construction allow for exceptional axial load support.
– **Space-Saving Design:** Needle roller thrust bearings provide maximum load-bearing capability in a minimal axial envelope.
– **Low Friction & Smooth Operation:** Precision-ground rollers and raceways minimize rotational resistance, improving efficiency.
– **Enhanced Durability:** Advanced heat treatment and surface finishing techniques extend bearing life in harsh environments.
– **Versatile Configurations:** Available in various cage materials (steel, brass, or polymer) and sealing options for diverse operating conditions.
### **Performance Advantages in Industrial & Automotive Applications**
NTN’s thrust bearings are widely used in applications where high axial load capacity and compactness are essential:
– **Industrial Machinery:** Machine tools, gearboxes, presses, and construction equipment rely on these bearings for precise axial load support.
– **Automotive Systems:** Found in transmissions, clutch release mechanisms, and steering systems, where space efficiency and durability are crucial.
– **Precision Equipment:** Used in robotics, medical devices, and aerospace actuators where smooth, low-friction motion is required.
### **Conclusion**
NTN’s **Needle Roller Thrust Bearings** and **Double Row Thrust Roller Bearings** deliver unmatched performance in high-load, space-constrained applications. Their precision engineering, robust construction, and adaptability make them a preferred choice for industries demanding reliability and efficiency. Whether in heavy industrial machinery or high-speed automotive systems, NTN’s thrust bearings ensure optimal performance under the most challenging conditions.
For engineers and designers seeking high-capacity, low-friction axial load solutions, NTN’s thrust bearing range provides the perfect balance of strength, compactness, and longevity.
Part Number | d | D | Dp (0.5/0.3) |
Sw | H | r | r1 | Mass |
---|---|---|---|---|---|---|---|---|
150.000 mm |
188.000 mm |
214.000 mm |
27.000 mm |
56.000 mm |
1.000 mm |
1.000 mm |
5.880 kg |
|
160.000 mm |
198.000 mm |
224.000 mm |
29.000 mm |
58.000 mm |
1.000 mm |
1.000 mm |
6.530 kg |
|
70.000 mm |
95.000 mm |
109.000 mm |
14.500 mm |
33.000 mm |
1.000 mm |
1.000 mm |
1.000 kg |
|
75.000 mm |
100.000 mm |
119.000 mm |
16.000 mm |
35.500 mm |
1.000 mm |
1.000 mm |
1.260 kg |
|
85.000 mm |
110.000 mm |
134.000 mm |
18.000 mm |
37.500 mm |
1.000 mm |
1.000 mm |
1.660 kg |
|
100.000 mm |
135.000 mm |
154.000 mm |
22.000 mm |
44.000 mm |
1.000 mm |
1.000 mm |
2.760 kg |
|
110.000 mm |
145.000 mm |
169.000 mm |
22.000 mm |
44.000 mm |
1.000 mm |
1.000 mm |
3.220 kg |
|
120.000 mm |
155.000 mm |
179.000 mm |
23.000 mm |
45.000 mm |
1.000 mm |
1.000 mm |
3.550 kg |
|
130.000 mm |
170.000 mm |
189.000 mm |
24.000 mm |
52.000 mm |
1.000 mm |
1.000 mm |
4.480 kg |
|
140.000 mm |
178.000 mm |
199.000 mm |
25.000 mm |
54.000 mm |
1.000 mm |
1.000 mm |
4.970 kg |
|
30.000 mm |
47.000 mm |
51.000 mm |
8.000 mm |
18.000 mm |
0.600 mm |
0.300 mm |
0.145 kg |
|
35.000 mm |
52.000 mm |
64.000 mm |
9.000 mm |
20.000 mm |
0.600 mm |
0.600 mm |
0.240 kg |
|
40.000 mm |
60.000 mm |
69.000 mm |
10.000 mm |
23.000 mm |
0.600 mm |
0.600 mm |
0.314 kg |
|
45.000 mm |
65.000 mm |
77.000 mm |
10.000 mm |
24.000 mm |
0.600 mm |
0.600 mm |
0.384 kg |
|
85.000 mm |
110.000 mm |
N/A |
14.500 mm |
34.000 mm |
1.000 mm |
1.000 mm |
1.090 kg |
|
50.000 mm |
70.000 mm |
84.000 mm |
11.500 mm |
25.500 mm |
0.600 mm |
0.600 mm |
0.481 kg |
|
90.000 mm |
120.000 mm |
N/A |
16.000 mm |
37.000 mm |
1.000 mm |
1.000 mm |
1.500 kg |
|
55.000 mm |
78.000 mm |
89.000 mm |
12.000 mm |
28.000 mm |
0.600 mm |
0.600 mm |
0.610 kg |
|
100.000 mm |
135.000 mm |
N/A |
18.000 mm |
40.000 mm |
1.000 mm |
1.000 mm |
2.110 kg |
|
60.000 mm |
85.000 mm |
99.000 mm |
12.500 mm |
28.000 mm |
1.000 mm |
1.000 mm |
0.750 kg |