Set Screw Type Bearings – Cylindrical O.D.

NTN Product Introduction

**NTN Ball Bearings: High-Performance Set Screw Type Bearings with Cylindrical O.D. for Demanding Applications**

NTN is a globally recognized leader in the design and manufacturing of precision rolling bearings and automotive components, renowned for their durability, reliability, and superior performance. Among NTN’s extensive bearing portfolio, **Set Screw Type Bearings with a Cylindrical Outer Diameter (O.D.)** stand out as a robust solution for applications requiring secure shaft mounting, high load capacity, and ease of installation. These bearings are part of NTN’s **Insert Bearing series**, which includes ball bearings designed for versatility in industrial machinery, automotive systems, and precision equipment.

### **Technical Features & Design Advantages**
NTN’s **Set Screw Type Bearings** feature a cylindrical outer diameter, allowing for a snug fit in standard housings while ensuring optimal alignment and load distribution. Key technical highlights include:

– **Secure Shaft Fixation**: Equipped with precision-set screws (grub screws) that lock the bearing firmly onto the shaft, preventing slippage under high torque or vibration.
– **High Load Capacity**: Engineered with deep-groove ball bearing construction, these units handle both radial and moderate axial loads efficiently.
– **Interchangeable Design**: Conforms to industry-standard dimensions (ISO, JIS), ensuring compatibility with a wide range of housings and shafts.
– **Robust Sealing Options**: Available with rubber seals (2RS) or shields (ZZ) to protect against contaminants, extending service life in harsh environments.
– **Precision-Ground Races**: High-quality steel construction with fine-tolerance grinding ensures smooth operation and reduced friction.

### **Performance Benefits**
NTN’s Set Screw Type Bearings deliver exceptional performance in demanding applications due to:

– **Easy Installation & Maintenance**: The set screw design simplifies mounting and disassembly, reducing downtime in industrial settings.
– **Vibration & Misalignment Resistance**: The cylindrical O.D. and reinforced inner ring enhance stability, making them ideal for applications with oscillating or dynamic loads.
– **Extended Service Life**: Advanced heat treatment and premium lubricants minimize wear, even in high-speed or high-temperature conditions.

### **Typical Applications**
These bearings are widely used across industries where reliable shaft fixation and durability are critical:

– **Industrial Machinery**: Conveyors, pumps, gearboxes, and agricultural equipment.
– **Automotive Systems**: Steering columns, transmission components, and electric motor assemblies.
– **Precision Equipment**: Printing machinery, packaging systems, and material handling devices.

For engineers and maintenance professionals seeking a dependable, easy-to-install bearing solution, NTN’s **Set Screw Type Bearings with Cylindrical O.D.** offer a perfect blend of strength, precision, and longevity. Backed by NTN’s legacy of innovation, these bearings ensure peak performance in the most challenging operational environments.

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Part Number d D C B r Mass
UCS328D1
140.000 mm
300.000 mm
71.000 mm
145.000 mm
4.000 mm
29.200 kg
UCS319-311D1
93.663 mm
200.000 mm
51.000 mm
103.000 mm
3.000 mm
9.117 kg
UCS319-312D1
95.250 mm
200.000 mm
51.000 mm
103.000 mm
3.000 mm
8.936 kg
UCS319D1
95.000 mm
200.000 mm
51.000 mm
103.000 mm
3.000 mm
8.970 kg
UCS320-313D1
96.838 mm
215.000 mm
55.000 mm
108.000 mm
3.000 mm
11.521 kg
UCS320-314D1
98.425 mm
215.000 mm
55.000 mm
108.000 mm
3.000 mm
11.294 kg
UCS320-315D1
100.013 mm
215.000 mm
55.000 mm
108.000 mm
3.000 mm
11.113 kg
UCS320-400D1
101.600 mm
215.000 mm
55.000 mm
108.000 mm
3.000 mm
10.932 kg
UCS320D1
100.000 mm
215.000 mm
55.000 mm
108.000 mm
3.000 mm
11.100 kg
UCS317-304D1
82.550 mm
180.000 mm
47.000 mm
96.000 mm
3.000 mm
7.121 kg
UCS321D1
105.000 mm
225.000 mm
57.000 mm
112.000 mm
3.000 mm
12.600 kg
UCS317-305D1
84.138 mm
180.000 mm
47.000 mm
96.000 mm
3.000 mm
6.985 kg
UCS322D1
110.000 mm
240.000 mm
59.000 mm
117.000 mm
3.000 mm
14.700 kg
UCS317-307D1
87.313 mm
180.000 mm
47.000 mm
96.000 mm
3.000 mm
6.668 kg
UCS324D1
120.000 mm
260.000 mm
63.000 mm
126.000 mm
3.000 mm
19.000 kg
UCS317D1
85.000 mm
180.000 mm
47.000 mm
96.000 mm
3.000 mm
6.880 kg
UCS326D1
130.000 mm
280.000 mm
67.000 mm
135.000 mm
4.000 mm
23.600 kg
UCS318-307D1
87.313 mm
190.000 mm
49.000 mm
96.000 mm
3.000 mm
8.074 kg
UCS318-308D1
88.900 mm
190.000 mm
49.000 mm
96.000 mm
3.000 mm
7.893 kg
UCS318D1
90.000 mm
190.000 mm
49.000 mm
96.000 mm
3.000 mm
7.800 kg