**NTN Tight Fit Type Insert Ball Bearings: Precision, Durability, and Versatility for Demanding Applications**
NTN Corporation, a global leader in bearing technology, offers a robust range of **Tight Fit Type Insert Ball Bearings** designed to deliver exceptional performance in high-load, high-precision, and high-vibration environments. These bearings are engineered to provide a secure, interference-fit mounting solution, ensuring superior positional accuracy, reduced slippage, and enhanced operational stability in industrial machinery, automotive systems, and precision equipment.
### **Technical Features & Design Advantages**
NTN’s Tight Fit Type Insert Ball Bearings are distinguished by their **optimized internal geometry** and **specialized outer ring surface treatment**, which ensures a firm, press-fit installation without compromising bearing integrity. Key features include:
– **Interference Fit Design**: The outer ring is slightly oversized to create a tight, press-fit connection with the housing, eliminating movement and minimizing micro-slip under heavy loads or vibration.
– **High-Grade Materials**: Manufactured from premium chrome steel or corrosion-resistant stainless steel, these bearings offer excellent wear resistance and extended service life.
– **Sealed & Shielded Options**: Available with rubber seals (LLU/LLB) or metal shields (ZZ) to protect against contaminants, moisture, and debris, making them ideal for harsh environments.
– **Precision Ground Raceways**: Ensures smooth rotation, low noise, and reduced friction, critical for high-speed applications.
– **Eccentric Locking Collar (Optional)**: Provides additional security for applications subject to dynamic loads or rotational forces.
### **Performance Benefits**
NTN’s Tight Fit Type Insert Bearings excel in applications where standard bearings may loosen or fail due to vibration, misalignment, or heavy axial/radial loads. Their advantages include:
– **Enhanced Stability**: The tight-fit design prevents housing creep, maintaining precise shaft alignment.
– **Reduced Maintenance**: The secure fit and superior sealing minimize lubrication loss and contamination ingress.
– **High Load Capacity**: Robust construction supports combined radial and axial loads, making them suitable for heavy-duty applications.
– **Versatility**: Compatible with adapter sleeves for easy mounting on shafts of varying diameters.
### **Typical Applications**
These bearings are widely used across industries where reliability and precision are critical:
– **Industrial Machinery**: Conveyors, pumps, gearboxes, and agricultural equipment requiring vibration resistance.
– **Automotive Systems**: Steering columns, transmission components, and auxiliary drives where tight tolerances are essential.
– **Precision Equipment**: Robotics, medical devices, and packaging machinery demanding smooth, backlash-free motion.
NTN’s Tight Fit Type Insert Ball Bearings represent a dependable solution for engineers seeking durability, precision, and ease of installation in challenging operating conditions. By combining advanced materials, tight tolerances, and innovative sealing technologies, NTN ensures optimal performance across a broad spectrum of industrial and automotive applications.
Part Number | d | D | B4 | r | Mass |
---|---|---|---|---|---|
35.000 mm |
80.000 mm |
N/A |
1.500 mm |
2.180 kg |
|
40.000 mm |
90.000 mm |
N/A |
2.000 mm |
3.010 kg |
|
45.000 mm |
100.000 mm |
N/A |
2.000 mm |
3.910 kg |
|
50.000 mm |
110.000 mm |
N/A |
2.000 mm |
5.150 kg |
|
12.000 mm |
32.000 mm |
10.000 mm |
0.600 mm |
0.040 kg |
|
65.000 mm |
120.000 mm |
31.000 mm |
2.000 mm |
3.700 kg |
|
15.000 mm |
35.000 mm |
N/A |
0.600 mm |
0.190 kg |
|
25.000 mm |
62.000 mm |
N/A |
1.500 mm |
1.070 kg |
|
17.000 mm |
40.000 mm |
N/A |
0.600 mm |
0.290 kg |
|
30.000 mm |
72.000 mm |
N/A |
1.100 mm |
1.650 kg |
|
17.000 mm |
40.000 mm |
N/A |
0.600 mm |
0.290 kg |
|
20.000 mm |
47.000 mm |
N/A |
1.000 mm |
0.490 kg |
|
25.400 mm |
52.000 mm |
N/A |
1.000 mm |
0.630 kg |
|
25.400 mm |
52.000 mm |
N/A |
1.000 mm |
0.630 kg |
|
25.000 mm |
52.000 mm |
N/A |
1.000 mm |
0.630 kg |
|
25.000 mm |
52.000 mm |
N/A |
1.000 mm |
0.640 kg |
|
30.000 mm |
62.000 mm |
N/A |
1.000 mm |
0.880 kg |
|
30.000 mm |
62.000 mm |
N/A |
1.000 mm |
0.970 kg |
|
35.000 mm |
72.000 mm |
N/A |
1.500 mm |
1.410 kg |
|
40.000 mm |
80.000 mm |
N/A |
1.500 mm |
1.800 kg |