Thrust Cylindrical Roller Bearings

**NTN Needle Roller Thrust Bearings & Thrust Cylindrical Roller Bearings: Precision, Durability, and High-Load Performance**

NTN is a globally recognized leader in the design and manufacturing of high-performance rolling bearings, offering innovative solutions for demanding industrial, automotive, and precision applications. Among its extensive product lineup, **NTN Needle Roller Thrust Bearings and Thrust Cylindrical Roller Bearings** stand out as critical components engineered to handle heavy axial loads while maintaining compact design efficiency. These bearings are optimized for applications where space constraints, high rigidity, and smooth rotational performance are essential.

### **Technical Features & Design Advantages**
NTN’s **Needle Roller Thrust Bearings** utilize slender, high-precision needle rollers arranged in a flat cage or washer-style configuration. This design maximizes load-bearing capacity while minimizing axial space requirements, making them ideal for applications with strict dimensional limitations. Key features include:
– **High Axial Load Capacity:** Engineered to withstand significant thrust loads in a single direction, ensuring reliable performance in heavy-duty applications.
– **Low Cross-Sectional Height:** The compact profile allows integration into tight spaces without sacrificing load-bearing capability.
– **Reduced Friction & Smooth Operation:** Precision-ground rollers and raceways minimize rotational resistance, enhancing efficiency and reducing wear.
– **Robust Cage Designs:** Options include pressed steel or machined cages for improved roller guidance and durability under high-speed conditions.

**Thrust Cylindrical Roller Bearings**, on the other hand, incorporate larger-diameter cylindrical rollers, providing even higher axial load capacity and rigidity. These bearings are designed for extreme-duty applications where shock loads and misalignment resistance are critical. Their key benefits include:
– **Exceptional Stiffness & Load Distribution:** Ideal for applications requiring precise axial positioning under heavy loads.
– **Enhanced Durability:** Heat-treated rollers and hardened raceways extend service life in harsh operating environments.
– **Customizable Configurations:** Available in single- or double-direction designs, with options for aligning seats to accommodate minor misalignments.

### **Performance Advantages**
NTN’s thrust bearings excel in applications where traditional ball thrust bearings fall short. Their optimized roller-raceway contact reduces stress concentrations, preventing premature failure even under continuous high-load conditions. Additionally, advanced lubrication retention features ensure consistent performance in both grease-lubricated and oil-bath systems.

### **Typical Applications**
These bearings are widely used across industries, including:
– **Automotive Systems:** Transmissions, clutch release mechanisms, and steering columns, where compact, high-load solutions are essential.
– **Industrial Machinery:** Machine tools, gearboxes, and hydraulic pumps requiring precise axial load support.
– **Heavy Equipment:** Construction machinery, agricultural equipment, and presses that demand durability under shock loads.
– **Precision Equipment:** Robotics and aerospace actuators where reliability and minimal deflection are critical.

By combining advanced materials, precision engineering, and rigorous testing, NTN’s **Needle Roller Thrust Bearings and Thrust Cylindrical Roller Bearings** deliver unmatched performance in the most demanding environments. Whether in automotive drivetrains or heavy industrial systems, these bearings provide the strength, efficiency, and longevity needed to keep machinery running smoothly.

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Part Number d d1 D D1 T r Mass
81111J
55.000 mm
78.000 mm
78.000 mm
57.000 mm
16.000 mm
0.600 mm
0.060 kg
81112
60.000 mm
85.000 mm
85.000 mm
62.000 mm
17.000 mm
1.000 mm
0.083 kg
81113
65.000 mm
90.000 mm
90.000 mm
67.000 mm
18.000 mm
1.000 mm
0.090 kg
81114
70.000 mm
95.000 mm
95.000 mm
72.000 mm
18.000 mm
1.000 mm
0.097 kg
81115
75.000 mm
100.000 mm
100.000 mm
77.000 mm
19.000 mm
1.000 mm
0.115 kg
81116
80.000 mm
105.000 mm
105.000 mm
82.000 mm
19.000 mm
1.000 mm
0.119 kg
81117
85.000 mm
110.000 mm
110.000 mm
87.000 mm
19.000 mm
1.000 mm
0.125 kg
81100
10.000 mm
24.000 mm
24.000 mm
10.000 mm
9.000 mm
0.300 mm
0.004 kg