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.

MORE +
CLOSE +
Part Number Fw Ew Bc Mass
KMJ25X33X24SV4
25.000 mm
33.000 mm
24.000 mm
0.040 kg
KMJ30X36X14
30.000 mm
36.000 mm
14.000 mm
0.022 kg
KMJ30X36X14V2
30.000 mm
36.000 mm
14.000 mm
0.021 kg
KMJ30X37X20
30.000 mm
37.000 mm
20.000 mm
0.038 kg
KMJ30X37X20S
30.000 mm
37.000 mm
20.000 mm
0.032 kg
KMJ30X38X26.3X2
30.000 mm
38.000 mm
26.300 mm
KMJ32X38X14
32.000 mm
38.000 mm
14.000 mm
0.022 kg
KMJ22X30X23.8X3S
22.000 mm
30.000 mm
24.000 mm
0.035 kg
KMJ15X21X21X1
15.000 mm
21.000 mm
21.000 mm
KMJ23X27X12.8X1S
23.000 mm
27.000 mm
13.000 mm
0.009 kg
KMJ16X22X13
16.000 mm
22.000 mm
13.000 mm
0.011 kg
KMJ23X29X17.8X2S
23.000 mm
29.000 mm
18.000 mm
0.019 kg
KMJ16X22X16
16.000 mm
22.000 mm
16.000 mm
0.014 kg
KMJ23X31X21.8XS
23.000 mm
31.000 mm
21.800 mm
KMJ18X24X17S
18.000 mm
24.000 mm
17.000 mm
0.014 kg
KMJ23X31X25.3XS
23.000 mm
31.000 mm
25.300 mm
KMJ18X24X17SV1
18.000 mm
24.000 mm
17.000 mm
0.014 kg
KMJ20X26X13
20.000 mm
26.000 mm
13.000 mm
0.012 kg
KMJ20X26X13.8X1S
20.000 mm
26.000 mm
14.000 mm
0.013 kg
KMJ20X26X17S
20.000 mm
26.000 mm
17.000 mm
0.016 kg