Thrust Roller and Cage Assemblies

**NTN Needle Roller Bearings, Thrust Bearings, and Thrust Roller & Cage Assemblies: Precision Performance for Demanding Applications**

NTN is a globally recognized leader in the design and manufacturing of high-performance rolling bearings, delivering innovative solutions for industrial machinery, automotive systems, and precision equipment. Among its extensive product portfolio, NTN’s **Needle Roller Bearings, Thrust Bearings, and Thrust Roller & Cage Assemblies** stand out for their exceptional load capacity, compact design, and reliability in high-stress environments. These components are engineered to meet the rigorous demands of modern applications, ensuring durability, reduced friction, and enhanced operational efficiency.

### **Technical Features & Design Advantages**

#### **1. Needle Roller Bearings**
NTN’s **Needle Roller Bearings** are designed with slender, cylindrical rollers that provide a high load-carrying capacity within a minimal radial space. Their compact design makes them ideal for applications where space constraints are critical, such as automotive transmissions, gearboxes, and industrial pumps. Key features include:
– **High Radial Load Capacity** – Optimized roller geometry ensures superior load distribution, reducing stress concentrations.
– **Low Friction & High-Speed Capability** – Precision-ground rollers and cages minimize rotational resistance, enhancing efficiency.
– **Versatile Configurations** – Available in drawn cup, caged, and full-complement designs for various load and speed requirements.

#### **2. Thrust Bearings**
NTN’s **Thrust Bearings** are engineered to handle **axial loads** in one or both directions, making them essential for applications like automotive clutches, steering systems, and heavy machinery. Their robust construction includes:
– **High Axial Load Support** – Designed with flat or spherical washers to accommodate misalignment and heavy thrust forces.
– **Low Profile & Space Efficiency** – Ideal for compact assemblies where height restrictions exist.
– **Heat-Treated Components** – Hardened raceways and rollers enhance wear resistance and longevity.

#### **3. Thrust Roller & Cage Assemblies**
For applications requiring **high axial load capacity with minimal friction**, NTN’s **Thrust Roller & Cage Assemblies** provide an optimized solution. These assemblies consist of precision rollers retained in a robust cage, ensuring smooth operation under heavy loads. Benefits include:
– **Reduced Sliding Friction** – Rollers replace sliding contact, minimizing heat generation and wear.
– **Enhanced Durability** – High-grade steel and advanced heat treatment extend service life.
– **Customizable Designs** – Available in various sizes and configurations to suit specific application needs.

### **Typical Applications**
NTN’s needle roller and thrust bearings are widely used across industries, including:
– **Automotive Systems:** Transmissions, differentials, clutch release mechanisms, and electric power steering.
– **Industrial Machinery:** Gearboxes, pumps, compressors, and construction equipment.
– **Precision Equipment:** Robotics, medical devices, and aerospace components.

By combining **advanced materials, precision engineering, and rigorous testing**, NTN ensures that its bearings deliver **reliable performance, extended service life, and reduced maintenance costs**—making them the preferred choice for engineers and manufacturers worldwide. Whether in high-speed automotive applications or heavy-duty industrial machinery, NTN’s thrust and needle roller bearings provide the strength and efficiency needed for peak performance.

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Part Number Dc1 Dc Dw (0/-0.010) Ea Eb Mass
K81117T2
85.000 mm
110.000 mm
7.500 mm
105.300 mm
88.700 mm
K81118T2
90.000 mm
120.000 mm
9.000 mm
114.300 mm
94.700 mm
K81120T2
100.000 mm
135.000 mm
11.000 mm
128.700 mm
105.100 mm
K81122
110.000 mm
145.000 mm
11.000 mm
138.800 mm
115.000 mm
K81122T2
110.000 mm
145.000 mm
11.000 mm
138.800 mm
115.000 mm
K81124T2
120.000 mm
155.000 mm
11.000 mm
148.800 mm
125.000 mm
K81126
130.000 mm
170.000 mm
12.000 mm
162.400 mm
137.700 mm
K81128
140.000 mm
180.000 mm
12.000 mm
172.500 mm
147.800 mm
K81130
150.000 mm
190.000 mm
12.000 mm
182.400 mm
157.700 mm
K81132
160.000 mm
200.000 mm
12.000 mm
192.500 mm
167.800 mm
K81111T2
55.000 mm
78.000 mm
6.000 mm
75.200 mm
57.800 mm
K81206T2
30.000 mm
52.000 mm
7.500 mm
49.000 mm
32.800 mm
K81112T2
60.000 mm
85.000 mm
7.500 mm
80.100 mm
63.700 mm
K81207T2
35.000 mm
62.000 mm
7.500 mm
56.000 mm
39.800 mm
K81113T2
65.000 mm
90.000 mm
7.500 mm
85.200 mm
68.800 mm
K81208T2
40.000 mm
68.000 mm
9.000 mm
62.900 mm
43.700 mm
K81114T2
70.000 mm
95.000 mm
7.500 mm
90.100 mm
73.700 mm
K81209T2
45.000 mm
73.000 mm
9.000 mm
68.000 mm
48.800 mm
K81115T2
75.000 mm
100.000 mm
7.500 mm
95.100 mm
78.700 mm
K81116T2
80.000 mm
105.000 mm
7.500 mm
100.100 mm
83.700 mm