Needle Roller and Cage Assemblies

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

NTN is a global leader in bearing technology, renowned for its high-performance needle roller bearings and needle roller and cage assemblies. These precision-engineered components are designed to deliver exceptional load capacity, durability, and efficiency in compact spaces, making them indispensable in industrial machinery, automotive systems, and precision equipment.

### **Technical Features & Design Advantages**
NTN’s needle roller bearings and cage assemblies are optimized for applications requiring high radial load support with minimal radial cross-section. Key features include:

– **High Load Capacity:** Despite their compact design, needle rollers provide a large load-bearing surface, enabling superior radial load handling compared to conventional ball bearings.
– **Space-Saving Design:** The slim profile reduces overall assembly size, making them ideal for applications with strict space constraints.
– **Precision Cage Guidance:** High-quality cages (typically steel or polymer) ensure smooth roller movement, reducing friction and wear while maintaining proper alignment.
– **Versatile Configurations:** Available in various designs, including drawn cup, solid, and open types, with options for sealed or open variants to suit different lubrication and contamination conditions.
– **Enhanced Durability:** Advanced heat treatment and surface finishing processes extend service life, even under high-speed or heavy-load conditions.

### **Performance Advantages**
NTN’s needle roller solutions excel in demanding environments due to:

– **Reduced Friction & Heat Generation:** Optimized roller geometry and cage design minimize energy loss, improving efficiency and reducing operating temperatures.
– **High-Speed Capability:** Precision balancing and low-mass rollers allow stable performance at elevated speeds.
– **Reliability in Harsh Conditions:** Resistant to shock loads, misalignment, and contamination, ensuring consistent operation in industrial and automotive settings.

### **Typical Applications**
These bearings are widely used in:

– **Automotive Systems:** Transmission components (gearboxes, differentials), engine accessories (rocker arms, cam followers), and steering mechanisms.
– **Industrial Machinery:** Printing presses, textile equipment, agricultural machinery, and construction gear where compact, high-load solutions are critical.
– **Precision Equipment:** Robotics, medical devices, and aerospace actuators requiring lightweight, high-rigidity bearing solutions.

By combining advanced engineering with rigorous quality control, NTN’s needle roller bearings and cage assemblies provide unmatched performance, reliability, and longevity—ensuring optimal functionality in the most challenging applications. Whether enhancing automotive efficiency or supporting heavy industrial loads, NTN delivers precision you can trust.

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Part Number Fw Ew Bc Mass
K75X83X23
75.000 mm
83.000 mm
23.000 mm
0.113 kg
K8X12X10
8.000 mm
12.000 mm
10.000 mm
0.002 kg
K7X10X10
7.000 mm
10.000 mm
10.000 mm
0.001 kg
K8X12X12
8.000 mm
12.000 mm
12.000 mm
0.003 kg
K7X10X10T2
7.000 mm
10.000 mm
10.000 mm
0.001 kg
K7X10X8
7.000 mm
10.000 mm
8.000 mm
0.001 kg
K80X86X20
80.000 mm
86.000 mm
20.000 mm
0.077 kg
K80X86X30
80.000 mm
86.000 mm
30.000 mm
0.110 kg
K80X88X23
80.000 mm
88.000 mm
23.000 mm
0.125 kg
K80X88X26
80.000 mm
88.000 mm
26.000 mm
0.131 kg
K80X88X30
80.000 mm
88.000 mm
30.000 mm
0.157 kg
K72X79X21
72.000 mm
79.000 mm
21.000 mm
0.085 kg
K65X73X23
65.000 mm
73.000 mm
23.000 mm
0.100 kg
K73X79X20
73.000 mm
79.000 mm
20.000 mm
0.074 kg
K65X73X30
65.000 mm
73.000 mm
30.000 mm
0.126 kg
K73X79X30
73.000 mm
79.000 mm
30.000 mm
0.106 kg
K68X74X20
68.000 mm
74.000 mm
20.000 mm
0.065 kg
K74X90X49.8X
74.000 mm
90.000 mm
50.000 mm
0.380 kg
K68X74X30
68.000 mm
74.000 mm
30.000 mm
0.097 kg
K75683X30
75.000 mm
83.000 mm
30.000 mm
0.147 kg
K68X74X35ZW
68.000 mm
74.000 mm
35.000 mm
0.116 kg
K68X75X21
68.000 mm
75.000 mm
21.000 mm
0.077 kg
K6X10X13
6.000 mm
10.000 mm
13.000 mm
0.002 kg
K6X9X10
6.000 mm
9.000 mm
10.000 mm
0.001 kg