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
K170X180X46
170.000 mm
180.000 mm
46.000 mm
0.620 kg
K15X20X13
15.000 mm
20.000 mm
13.000 mm
0.009 kg
K175X183X32
175.000 mm
183.000 mm
32.000 mm
0.360 kg
K15X21X15
15.000 mm
21.000 mm
15.000 mm
0.013 kg
K15X21X21
15.000 mm
21.000 mm
21.000 mm
0.017 kg
K160X170X46
160.000 mm
170.000 mm
46.000 mm
0.570 kg
K165X173X26
165.000 mm
173.000 mm
26.000 mm
0.290 kg
K150X160X46
150.000 mm
160.000 mm
46.000 mm
0.550 kg
K155X163X26
155.000 mm
163.000 mm
26.000 mm
0.270 kg
K155X163X36
155.000 mm
163.000 mm
36.000 mm
0.355 kg
K15X18X14
15.000 mm
18.000 mm
14.000 mm
0.006 kg
K145X153X36
145.000 mm
153.000 mm
36.000 mm
0.335 kg
K15X19X10
15.000 mm
19.000 mm
10.000 mm
0.006 kg
K14X17X10
14.000 mm
17.000 mm
10.000 mm
0.003 kg
K15X19X10S
15.000 mm
19.000 mm
10.000 mm
0.005 kg
K14X18X10
14.000 mm
18.000 mm
10.000 mm
0.005 kg
K15X19X13
15.000 mm
19.000 mm
13.000 mm
0.007 kg
K14X18X11
14.000 mm
18.000 mm
11.000 mm
0.005 kg
K15X19X13S
15.000 mm
19.000 mm
13.000 mm
0.007 kg
K14X18X13
14.000 mm
18.000 mm
13.000 mm
0.006 kg