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
PCJ344024
53.975 mm
63.500 mm
38.100 mm
0.144 kg
PCJ202612
31.750 mm
41.275 mm
19.050 mm
0.045 kg
PCJ364216
57.150 mm
66.675 mm
25.400 mm
0.094 kg
PCJ202616
31.750 mm
41.275 mm
25.400 mm
0.062 kg
PCJ384424
60.325 mm
69.850 mm
38.100 mm
0.161 kg
PCJ202624
31.750 mm
41.275 mm
38.100 mm
0.096 kg
PCJ404616
63.500 mm
73.025 mm
25.400 mm
0.105 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
PCJ121616
19.050 mm
25.400 mm
25.400 mm
0.023 kg
KV48X53X36.8XZWS
48.000 mm
53.000 mm
37.000 mm
0.064 kg
PCJ141816
22.225 mm
28.575 mm
25.400 mm
0.028 kg
KV48X55X24.3XS
48.000 mm
55.000 mm
24.500 mm
0.070 kg
PCJ162112
25.400 mm
33.338 mm
19.050 mm
0.032 kg
KV50X55X20S
50.000 mm
55.000 mm
20.000 mm
0.040 kg