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
51232
160.000 mm
225.000 mm
51.000 mm
1.500 mm
6.320 kg
51217C3
85.000 mm
125.000 mm
31.000 mm
1.000 mm
1.275 kg
51232C3
160.000 mm
225.000 mm
51.000 mm
1.500 mm
6.320 kg
51218
90.000 mm
135.000 mm
35.000 mm
1.100 mm
1.700 kg
51234
170.000 mm
240.000 mm
55.000 mm
1.500 mm
7.810 kg
51218C3
90.000 mm
135.000 mm
35.000 mm
1.100 mm
1.700 kg
51234C3
170.000 mm
240.000 mm
55.000 mm
1.500 mm
7.810 kg
51220
100.000 mm
150.000 mm
38.000 mm
1.100 mm
2.231 kg
51236
180.000 mm
250.000 mm
56.000 mm
1.500 mm
8.340 kg
51220C3
100.000 mm
150.000 mm
38.000 mm
1.100 mm
2.231 kg
51222
110.000 mm
160.000 mm
38.000 mm
1.100 mm
2.415 kg
51222C3
110.000 mm
160.000 mm
38.000 mm
1.100 mm
2.415 kg
51224
120.000 mm
170.000 mm
39.000 mm
1.100 mm
2.710 kg
51224C3
120.000 mm
170.000 mm
39.000 mm
1.100 mm
2.710 kg
51226
130.000 mm
190.000 mm
45.000 mm
1.500 mm
4.220 kg
51226C3
130.000 mm
190.000 mm
45.000 mm
1.500 mm
4.220 kg
51228
140.000 mm
200.000 mm
46.000 mm
1.500 mm
4.430 kg
51228C3
140.000 mm
200.000 mm
46.000 mm
1.500 mm
4.430 kg
51209
45.000 mm
73.000 mm
20.000 mm
1.000 mm
0.317 kg
51216
80.000 mm
115.000 mm
28.000 mm
1.000 mm
0.909 kg