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
PK24X31X16.8X7
24.000 mm
31.000 mm
16.800 mm
0.024 kg
PK24X32X19.8X6
24.000 mm
32.000 mm
19.800 mm
0.033 kg
PK26X31X13.8X31
26.000 mm
31.000 mm
13.800 mm
0.014 kg
PK26X32X13.8X
26.000 mm
32.000 mm
13.800 mm
0.018 kg
PK26X34X16.8X7
26.000 mm
34.000 mm
16.800 mm
0.032 kg
PK27X36X20.8X1
27.000 mm
36.000 mm
20.800 mm
0.044 kg
PK28X35X13.8X1
28.000 mm
35.000 mm
14.000 mm
0.023 kg
PCJ485424
76.200 mm
85.725 mm
38.100 mm
0.201 kg
PK18X24X11.8X3
18.000 mm
24.000 mm
11.800 mm
0.011 kg
PCJ566216
88.900 mm
98.425 mm
25.400 mm
0.149 kg
PCJ566416
88.900 mm
101.600 mm
25.400 mm
0.187 kg
PCJ566424
88.900 mm
101.600 mm
38.100 mm
0.305 kg
PCJ647216
101.600 mm
114.300 mm
25.400 mm
0.212 kg
PCJ647224
101.600 mm
114.300 mm
38.100 mm
0.345 kg
PK10X14X9.8X14
10.000 mm
14.000 mm
9.800 mm
0.004 kg
PK12X16X10.2
12.000 mm
16.000 mm
10.000 mm
0.004 kg
PK12X17X9.8X15
12.000 mm
17.000 mm
9.800 mm
0.005 kg
PK14X19X11.8X1
14.000 mm
19.000 mm
11.800 mm
0.007 kg
PK14X19X9.7X1
14.000 mm
19.000 mm
9.700 mm
0.007 kg
PK14X20X11.8X3
14.000 mm
20.000 mm
11.800 mm
0.009 kg