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
K35X42X30
35.000 mm
42.000 mm
30.000 mm
0.062 kg
K35X42X45ZW
35.000 mm
42.000 mm
45.000 mm
0.106 kg
K36X42X46ZW
36.000 mm
42.000 mm
46.000 mm
0.086 kg
K37X42X13
37.000 mm
42.000 mm
13.000 mm
0.021 kg
K37X42X13V4
37.000 mm
42.000 mm
13.000 mm
0.021 kg
K35X40X17
35.000 mm
40.000 mm
17.000 mm
0.025 kg
K37X42X17V2
37.000 mm
42.000 mm
17.000 mm
0.026 kg
K35X40X19
35.000 mm
40.000 mm
19.000 mm
0.029 kg
K37X44X18
37.000 mm
44.000 mm
18.000 mm
0.042 kg
K35X40X26ZW
35.000 mm
40.000 mm
26.000 mm
0.037 kg
K37X45X24.8X
37.000 mm
45.000 mm
25.000 mm
0.039 kg
K32X37X13
32.000 mm
37.000 mm
13.000 mm
0.018 kg
K32X37X17S
32.000 mm
37.000 mm
17.000 mm
0.022 kg
K32X37X24.8X2
32.000 mm
37.000 mm
24.000 mm
0.018 kg
K32X37X26ZW
32.000 mm
37.000 mm
26.000 mm
0.034 kg
K32X37X26ZWV3
32.000 mm
37.000 mm
26.000 mm
0.032 kg
K32X37X27
32.000 mm
37.000 mm
27.000 mm
0.037 kg
K32X38X26
32.000 mm
38.000 mm
26.000 mm
0.041 kg
K32X39X16
32.000 mm
39.000 mm
16.000 mm
0.034 kg
K32X39X16V1
32.000 mm
39.000 mm
16.000 mm
0.033 kg
K30X35X27
30.000 mm
35.000 mm
27.000 mm
0.033 kg
K32X39X18
32.000 mm
39.000 mm
18.000 mm
0.037 kg
K30X35X27S
30.000 mm
35.000 mm
27.000 mm
0.033 kg
K33X38X30.3X1
33.000 mm
38.000 mm
30.500 mm
0.026 kg