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
K30X35X20S
30.000 mm
35.000 mm
20.000 mm
0.025 kg
K30X35X26ZW
30.000 mm
35.000 mm
26.000 mm
0.032 kg
K30X35X26ZWV1
30.000 mm
35.000 mm
26.000 mm
0.036 kg
K25X29X13
25.000 mm
29.000 mm
13.000 mm
0.010 kg
K25X29X17S
25.000 mm
29.000 mm
17.000 mm
0.014 kg
K25X301X13
25.000 mm
31.000 mm
13.000 mm
0.016 kg
K25X30X13
25.000 mm
30.000 mm
13.000 mm
0.015 kg
K25X30X17S
25.000 mm
30.000 mm
17.000 mm
0.017 kg
K25X30X20S
25.000 mm
30.000 mm
20.000 mm
0.021 kg
K25X30X20SV3
25.000 mm
30.000 mm
20.000 mm
0.021 kg
K25X30X26ZW
25.000 mm
30.000 mm
26.000 mm
0.027 kg
K25X30X39ZW
25.000 mm
30.000 mm
39.000 mm
0.040 kg
K25X31X14
25.000 mm
31.000 mm
14.000 mm
0.018 kg
K25X31X17
25.000 mm
31.000 mm
17.000 mm
0.022 kg
K25X31X21
25.000 mm
31.000 mm
21.000 mm
0.026 kg
K25X31X21V3
25.000 mm
31.000 mm
21.000 mm
0.028 kg
K25X33X24.4X
25.000 mm
33.000 mm
24.400 mm
0.046 kg
K265X280X50
265.000 mm
280.000 mm
50.000 mm
1.810 kg
K265X280X50L1
265.000 mm
280.000 mm
50.000 mm
1.768 kg
K26X30X13
26.000 mm
30.000 mm
13.000 mm
0.011 kg
K26X30X17
26.000 mm
30.000 mm
17.000 mm
0.015 kg
K26X34X22
26.000 mm
34.000 mm
22.000 mm
0.041 kg
K285X300X50
285.000 mm
300.000 mm
50.000 mm
1.970 kg
K22X27X28.3X
22.000 mm
27.000 mm
28.500 mm
0.028 kg