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
PK28X37X20.8X
28.000 mm
37.000 mm
20.800 mm
0.048 kg
PK29X39X21.4X2
29.000 mm
39.000 mm
21.400 mm
0.055 kg
PK30X37X15.9X
30.000 mm
37.000 mm
15.900 mm
0.028 kg
PCJ404624
63.500 mm
73.025 mm
38.100 mm
0.167 kg
PCJ445016
69.850 mm
79.375 mm
25.400 mm
0.116 kg
PCJ485416
76.200 mm
85.725 mm
25.400 mm
0.127 kg
PCJ485424
76.200 mm
85.725 mm
38.100 mm
0.201 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
PK15X20X9.8X
15.000 mm
20.000 mm
9.800 mm
0.007 kg
PK15X21X11.8X8
15.000 mm
21.000 mm
11.800 mm
0.010 kg
PK16X22X11.8X2
16.000 mm
22.000 mm
11.800 mm
0.010 kg
PK16X22X13.2X
16.000 mm
22.000 mm
13.200 mm
0.011 kg
PK18X24X11.8X3
18.000 mm
24.000 mm
11.800 mm
0.011 kg
PCJ182420
28.575 mm
38.100 mm
31.750 mm
0.073 kg