Tight Fit Type Ball Bearings

**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.

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Part Number d D B4 r Mass
CS310LLU
50.000 mm
110.000 mm
N/A
2.000 mm
5.150 kg
CS309LLU
45.000 mm
100.000 mm
N/A
2.000 mm
3.910 kg
CS308LLU
40.000 mm
90.000 mm
N/A
2.000 mm
3.010 kg
CS307LLU
35.000 mm
80.000 mm
N/A
1.500 mm
2.180 kg
CS207LLU
35.000 mm
72.000 mm
N/A
1.500 mm
1.410 kg
CS306LLU
30.000 mm
72.000 mm
N/A
1.100 mm
1.650 kg
CS305LLU
25.000 mm
62.000 mm
N/A
1.500 mm
1.070 kg
CS213D1V2
65.000 mm
120.000 mm
31.000 mm
2.000 mm
3.700 kg
CS212D1V2
60.000 mm
110.000 mm
N/A
2.500 mm
3.780 kg
CS210LLU
50.000 mm
90.000 mm
N/A
1.100 mm
2.270 kg
CS209LLU
45.000 mm
85.000 mm
33.000 mm
1.100 mm
1.940 kg
CS208LLU
40.000 mm
80.000 mm
N/A
1.500 mm
1.800 kg
CS200LLU
10.000 mm
30.000 mm
20.000 mm
0.600 mm
0.150 kg
CS206LLU
30.000 mm
62.000 mm
N/A
1.000 mm
0.970 kg
CS206D1-A1V2
30.000 mm
62.000 mm
N/A
1.000 mm
0.880 kg
CS205LLUC3
25.000 mm
52.000 mm
N/A
1.000 mm
0.640 kg
CS205LLU
25.000 mm
52.000 mm
N/A
1.000 mm
0.630 kg
CS205-100LLU
25.400 mm
52.000 mm
N/A
1.000 mm
0.630 kg
CS205-100D1V14
25.400 mm
52.000 mm
N/A
1.000 mm
0.630 kg
CS204LLU
20.000 mm
47.000 mm
N/A
1.000 mm
0.490 kg
CS203LLUC3
17.000 mm
40.000 mm
N/A
0.600 mm
0.290 kg
CS203LLU
17.000 mm
40.000 mm
N/A
0.600 mm
0.290 kg
CS202LLU
15.000 mm
35.000 mm
N/A
0.600 mm
0.190 kg
CS201LLU
12.000 mm
32.000 mm
10.000 mm
0.600 mm
0.040 kg