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
K64X70X16
64.000 mm
70.000 mm
16.000 mm
0.053 kg
K60X65X20
60.000 mm
65.000 mm
20.000 mm
0.051 kg
K65X70X20
65.000 mm
70.000 mm
20.000 mm
0.055 kg
K52X58X19
52.000 mm
58.000 mm
19.000 mm
0.048 kg
K55X60X17
55.000 mm
60.000 mm
17.000 mm
0.043 kg
K55X60X20
55.000 mm
60.000 mm
20.000 mm
0.045 kg
K55X60X36.8X
55.000 mm
60.000 mm
37.000 mm
0.086 kg
K55X61X19
55.000 mm
61.000 mm
19.000 mm
0.051 kg
K55X61X20
55.000 mm
61.000 mm
20.000 mm
0.054 kg
K55X61X30
55.000 mm
61.000 mm
30.000 mm
0.081 kg
K55X62X18
55.000 mm
62.000 mm
18.000 mm
0.054 kg
K55X63X20
55.000 mm
63.000 mm
20.000 mm
0.073 kg
K50X55X13.5
50.000 mm
55.000 mm
13.500 mm
0.023 kg
K55X63X25
55.000 mm
63.000 mm
25.000 mm
0.088 kg
K50X55X20
50.000 mm
55.000 mm
20.000 mm
0.042 kg
K55X63X32
55.000 mm
63.000 mm
32.000 mm
0.117 kg
K50X55X27
50.000 mm
55.000 mm
27.000 mm
0.053 kg
K56X66X40.8X
56.000 mm
66.000 mm
41.000 mm
0.148 kg
K50X55X30
50.000 mm
55.000 mm
30.000 mm
0.059 kg
K58X64X19
58.000 mm
64.000 mm
19.000 mm
0.052 kg
K50X57X18
50.000 mm
57.000 mm
18.000 mm
0.053 kg
K50X58X20
50.000 mm
58.000 mm
20.000 mm
0.065 kg
K50X58X25
50.000 mm
58.000 mm
25.000 mm
0.081 kg
K47X52X23.8X
47.000 mm
52.000 mm
24.000 mm
0.044 kg