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
KV50X55X20S
50.000 mm
55.000 mm
20.000 mm
0.040 kg
PCJ162116
25.400 mm
33.338 mm
25.400 mm
0.044 kg
KV50X58X57.8XZWS
50.000 mm
58.000 mm
58.000 mm
0.188 kg
PCJ182416
28.575 mm
38.100 mm
25.400 mm
0.058 kg
KV52X57X17.8XS
52.000 mm
57.000 mm
18.000 mm
0.037 kg
KV52X57X22.8X1S
52.000 mm
57.000 mm
23.000 mm
0.048 kg
KV54X59X22.8XS
54.000 mm
59.000 mm
23.000 mm
0.049 kg
KV55X60X30S
55.000 mm
60.000 mm
30.000 mm
0.069 kg
KV57X65X39.8XZWS
57.000 mm
65.000 mm
40.000 mm
0.145 kg
KV63X71X50.3XZWS
63.000 mm
71.000 mm
50.500 mm
0.193 kg
KV65X70X21.3X1S
65.000 mm
70.000 mm
21.500 mm
0.056 kg
KV75X81X19.8X1S
75.000 mm
75.000 mm
20.000 mm
0.071 kg
KV7X10X12.8X3S
7.000 mm
10.000 mm
13.000 mm
0.002 kg
KV80X86X20SV1
80.000 mm
86.000 mm
20.000 mm
0.077 kg
PCJ081008
12.700 mm
15.875 mm
12.700 mm
0.003 kg
KV30X35X13S
30.000 mm
35.000 mm
13.000 mm
0.017 kg
KV48X53X22.3XS
48.000 mm
53.000 mm
22.500 mm
0.042 kg
KV31X35X23.8XS
31.000 mm
35.000 mm
24.000 mm
0.022 kg
KV31X36X13.8XS
31.000 mm
36.000 mm
14.000 mm
0.017 kg
KV34X40X39.3X1ZWS
34.000 mm
40.000 mm
39.500 mm
0.066 kg
KV35X39X22.3XS
35.000 mm
39.000 mm
22.500 mm
0.024 kg
KV35X42X20SV2
35.000 mm
42.000 mm
20.000 mm
0.040 kg
KV37X43X33.3XS
37.000 mm
43.000 mm
33.500 mm
0.062 kg
KV40X46X33.8XS
40.000 mm
46.000 mm
34.000 mm
0.063 kg