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
51104C3
20.000 mm
35.000 mm
10.000 mm
0.300 mm
0.033 kg
2922
110.000 mm
N/A
25.000 mm
0.600 mm
5.203 kg
51105
25.000 mm
42.000 mm
11.000 mm
0.600 mm
0.052 kg
2924
120.000 mm
N/A
27.000 mm
0.600 mm
0.221 kg
51105C3
25.000 mm
42.000 mm
11.000 mm
0.600 mm
0.052 kg
511/500
500.000 mm
600.000 mm
80.000 mm
2.100 mm
45.000 kg
51105YP5
25.000 mm
42.000 mm
11.000 mm
0.600 mm
0.052 kg
511/500C3
500.000 mm
600.000 mm
80.000 mm
2.100 mm
45.000 kg
511/530
530.000 mm
640.000 mm
85.000 mm
3.000 mm
55.800 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
51100C3
10.000 mm
24.000 mm
9.000 mm
0.300 mm
0.018 kg
51101
12.000 mm
26.000 mm
9.000 mm
0.300 mm
0.021 kg
51101C3
12.000 mm
26.000 mm
9.000 mm
0.300 mm
0.021 kg
51102
15.000 mm
28.000 mm
9.000 mm
0.300 mm
0.021 kg
51102C3
15.000 mm
28.000 mm
9.000 mm
0.300 mm
0.021 kg
51103
17.000 mm
30.000 mm
9.000 mm
0.300 mm
0.022 kg
51103C3
17.000 mm
30.000 mm
9.000 mm
0.300 mm
0.022 kg
2903
18.000 mm
N/A
12.000 mm
0.600 mm
0.050 kg
2919
95.000 mm
N/A
25.000 mm
0.600 mm
0.927 kg