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
51180
400.000 mm
480.000 mm
65.000 mm
2.000 mm
23.300 kg
51180C3
400.000 mm
480.000 mm
65.000 mm
2.000 mm
23.300 kg
51184
420.000 mm
500.000 mm
65.000 mm
2.000 mm
24.400 kg
51184C3
420.000 mm
500.000 mm
65.000 mm
2.000 mm
24.400 kg
51188
440.000 mm
540.000 mm
80.000 mm
2.100 mm
40.000 kg
51188C3
440.000 mm
540.000 mm
80.000 mm
2.100 mm
40.000 kg
51192
460.000 mm
560.000 mm
80.000 mm
2.100 mm
41.600 kg
51192C3
460.000 mm
560.000 mm
80.000 mm
2.100 mm
41.600 kg
51196
480.000 mm
580.000 mm
80.000 mm
2.100 mm
43.300 kg
51196C3
480.000 mm
580.000 mm
80.000 mm
3.100 mm
43.300 kg
51130
150.000 mm
190.000 mm
31.000 mm
1.000 mm
1.930 kg
51130C3
150.000 mm
190.000 mm
31.000 mm
1.000 mm
1.930 kg
51132
160.000 mm
200.000 mm
31.000 mm
1.000 mm
2.050 kg
51132C3
160.000 mm
200.000 mm
31.000 mm
1.000 mm
2.050 kg
51134
170.000 mm
215.000 mm
34.000 mm
1.100 mm
2.670 kg
51134C3
170.000 mm
215.000 mm
34.000 mm
1.100 mm
2.670 kg
51136
180.000 mm
225.000 mm
34.000 mm
1.100 mm
2.720 kg
51136C3
180.000 mm
225.000 mm
34.000 mm
1.100 mm
2.720 kg
51138
190.000 mm
240.000 mm
37.000 mm
1.100 mm
3.520 kg
51138C3
190.000 mm
240.000 mm
37.000 mm
1.100 mm
3.520 kg
51140
200.000 mm
250.000 mm
37.000 mm
1.100 mm
3.740 kg
51140C3
200.000 mm
250.000 mm
37.000 mm
1.100 mm
3.740 kg
51144
220.000 mm
270.000 mm
37.000 mm
1.100 mm
4.000 kg
51144C3
220.000 mm
270.000 mm
37.000 mm
1.100 mm
4.000 kg