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
CS307LLU
35.000 mm
80.000 mm
N/A
1.500 mm
2.180 kg
CS308LLU
40.000 mm
90.000 mm
N/A
2.000 mm
3.010 kg
CS309LLU
45.000 mm
100.000 mm
N/A
2.000 mm
3.910 kg
CS310LLU
50.000 mm
110.000 mm
N/A
2.000 mm
5.150 kg
CS201LLU
12.000 mm
32.000 mm
10.000 mm
0.600 mm
0.040 kg
CS213D1V2
65.000 mm
120.000 mm
31.000 mm
2.000 mm
3.700 kg
CS202LLU
15.000 mm
35.000 mm
N/A
0.600 mm
0.190 kg
CS305LLU
25.000 mm
62.000 mm
N/A
1.500 mm
1.070 kg
CS203LLU
17.000 mm
40.000 mm
N/A
0.600 mm
0.290 kg
CS306LLU
30.000 mm
72.000 mm
N/A
1.100 mm
1.650 kg
CS203LLUC3
17.000 mm
40.000 mm
N/A
0.600 mm
0.290 kg
CS204LLU
20.000 mm
47.000 mm
N/A
1.000 mm
0.490 kg
CS205-100D1V14
25.400 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
CS205LLU
25.000 mm
52.000 mm
N/A
1.000 mm
0.630 kg
CS205LLUC3
25.000 mm
52.000 mm
N/A
1.000 mm
0.640 kg
CS206D1-A1V2
30.000 mm
62.000 mm
N/A
1.000 mm
0.880 kg
CS206LLU
30.000 mm
62.000 mm
N/A
1.000 mm
0.970 kg
CS207LLU
35.000 mm
72.000 mm
N/A
1.500 mm
1.410 kg
CS208LLU
40.000 mm
80.000 mm
N/A
1.500 mm
1.800 kg