Single Direction Thrust Ball Bearing

**NTN Single Direction Thrust Ball Bearings: Precision, Durability, and High-Performance Load Handling**

NTN is a globally recognized leader in the design and manufacture of high-performance rolling bearings, delivering innovative solutions for industrial, automotive, and precision applications. Among its extensive product lineup, **NTN Single Direction Thrust Ball Bearings** stand out as a critical component for applications requiring robust axial load support, smooth operation, and long service life. Engineered with precision and durability in mind, these bearings are ideal for machinery and systems where space constraints, high thrust loads, and rotational accuracy are key considerations.

### **Technical Features & Design Excellence**
NTN’s Single Direction Thrust Ball Bearings are designed with a **separable structure**, allowing for easy installation and maintenance. The bearings consist of a **shaft washer (inner ring), housing washer (outer ring), and a ball-and-cage assembly**, ensuring optimal load distribution and reduced friction. Key technical features include:

– **High Axial Load Capacity**: Specifically engineered to handle **unidirectional axial loads**, these bearings efficiently support heavy thrust forces while minimizing radial load transfer.
– **Precision-Grade Components**: Manufactured to tight tolerances, NTN bearings ensure smooth rotation and minimal vibration, critical for high-speed applications.
– **Advanced Cage Designs**: Options include **stamped steel, machined brass, or polyamide cages**, each offering distinct advantages in speed capability, lubrication retention, and corrosion resistance.
– **Heat-Treated Races**: The hardened washer surfaces enhance wear resistance and extend bearing life under demanding conditions.
– **Lubrication Versatility**: Compatible with grease or oil lubrication, NTN thrust bearings are optimized for various operating environments, from high-temperature industrial settings to automotive transmissions.

### **Performance Advantages**
NTN’s Single Direction Thrust Ball Bearings deliver several performance benefits:

– **Reduced Friction & Energy Loss**: Precision-ground raceways and high-quality steel reduce rolling resistance, improving efficiency in power transmission systems.
– **Enhanced Durability**: Robust construction and premium materials resist wear, even in high-load, high-speed applications.
– **Compact & Lightweight Design**: Ideal for applications with limited axial space, such as automotive clutches, gearboxes, and steering systems.
– **Low Noise & Vibration**: Superior surface finishes and cage stability contribute to quieter operation, essential for precision machinery and electric vehicles.

### **Typical Applications**
These bearings are widely used across industries, including:

– **Automotive Systems**: Clutch release mechanisms, transmission thrust supports, and steering column assemblies.
– **Industrial Machinery**: Pumps, compressors, machine tool spindles, and agricultural equipment.
– **Aerospace & Defense**: Actuators, rotor systems, and landing gear components.
– **Energy & Heavy Equipment**: Wind turbine pitch control, hydraulic systems, and construction machinery.

By combining **advanced engineering, rigorous quality control, and application-specific customization**, NTN’s Single Direction Thrust Ball Bearings provide reliable performance in the most demanding environments. Whether in high-speed automotive drivetrains or heavy industrial equipment, NTN ensures precision, longevity, and efficiency—reinforcing its reputation as a trusted global bearing solutions provider.

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Part Number d D T r Mass
51107C3
35.000 mm
52.000 mm
12.000 mm
0.600 mm
0.078 kg
51114C3
70.000 mm
95.000 mm
18.000 mm
1.000 mm
0.356 kg
51107YP5
35.000 mm
52.000 mm
12.000 mm
0.600 mm
0.078 kg
51108
40.000 mm
60.000 mm
13.000 mm
0.600 mm
0.117 kg
51108C3
40.000 mm
60.000 mm
13.000 mm
0.600 mm
0.117 kg
51109
45.000 mm
65.000 mm
14.000 mm
0.600 mm
0.137 kg
51109C3
45.000 mm
65.000 mm
14.000 mm
0.600 mm
0.137 kg
51110
50.000 mm
70.000 mm
14.000 mm
0.600 mm
0.149 kg
51110C3
50.000 mm
70.000 mm
14.000 mm
0.600 mm
0.149 kg
51111
55.000 mm
78.000 mm
16.000 mm
0.600 mm
0.225 kg
51111C3
55.000 mm
78.000 mm
16.000 mm
0.600 mm
0.225 kg
51112
60.000 mm
85.000 mm
17.000 mm
1.000 mm
0.272 kg
51112C3
60.000 mm
85.000 mm
17.000 mm
1.000 mm
0.272 kg
51112PX2
60.000 mm
85.000 mm
17.000 mm
1.000 mm
0.272 kg
51106
30.000 mm
47.000 mm
11.000 mm
0.600 mm
0.059 kg
51113
65.000 mm
90.000 mm
18.000 mm
1.000 mm
0.312 kg
51106C3
30.000 mm
47.000 mm
11.000 mm
0.600 mm
0.059 kg
51113C3
65.000 mm
90.000 mm
18.000 mm
1.000 mm
0.312 kg
511/530C3
530.000 mm
640.000 mm
85.000 mm
3.000 mm
55.800 kg
51100
10.000 mm
24.000 mm
9.000 mm
0.300 mm
0.018 kg