NA4918R NTN Needle Roller Bearing

Review NTN Needle Roller Bearing 90x125x35mm

The NTF NA4918R needle roller bearing is a precision engineered component, designed for applications requiring high load capacity and minimal friction. This bearing measures 90mm in length, 125mm in width, and 35mm in height.

At its core, this bearing houses a large number of small, cylindrical rollers in a narrow configuration. These rollers are supported by a cage made of steel or another suitable material. The rollers are arranged such that they roll between the inner and outer races, which are typically made of steel or bronze. The races are precision machined to ensure a snug fit and minimal play.

The NTF NA4918R is specifically designed for radial and thrust loads. Its needle roller configuration allows it to support higher loads than a standard ball bearing of similar size. This makes it an ideal choice for applications where high load capacity and minimal friction are essential.

The bearing comes with an integrated seal on both ends to prevent contamination from the environment. This seal ensures that the bearing remains lubricated and functions efficiently, even in harsh environments. The seal is designed to be self-aligning, allowing for easy installation and maintenance.

The NTF NA4918R is manufactured to stringent quality standards, ensuring that it provides reliable and consistent performance over its operational life. It is suitable for use in a wide range of industries, including automotive, industrial machinery, and aerospace.

When mounting the bearing, it is important to follow the manufacturer's instructions carefully to ensure proper alignment and seating. Proper installation and maintenance are crucial to ensuring the longevity and efficiency of the bearing.

Overall, the NTF NA4918R needle roller bearing is a high-performance component, designed for applications where load capacity and minimal friction are critical. Its compact design, integrated seal, and precision engineering make it an ideal choice for a wide range of industrial and automotive applications.

The NSK NTF NA4918R is a needle roller bearing with the following dimensions: 90mm outer diameter, 125mm inner diameter, and 35mm width. Here are some pros and cons of purchasing this specific bearing:

1. High load capacity: Needle roller bearings are known for their ability to support heavy loads, making them suitable for industrial applications.

2. Compact design: The compact size of needle roller bearings makes them ideal for use in confined spaces.

3. Low friction: Needle roller bearings have a low coefficient of friction, which can lead to increased efficiency and energy savings.

4. Cost-effective: Needle roller bearings are typically less expensive than other types of bearings, making them a cost-effective option for many applications.

1. Noise: Needle roller bearings can be noisier than other types of bearings due to their design.

2. Vibration: Needle roller bearings can generate more vibration than other types of bearings, which can be a concern in sensitive applications.

3. Limited speed range: Needle roller bearings have a limited speed range and are not suitable for high-speed applications.

4. Limited radial load capacity: While needle roller bearings have high axial load capacity, they have limited radial load capacity.

In conclusion, the NSK NTF NA4918R needle roller bearing is a good option for applications that require high load capacity, compact design, and low friction. However, it may not be suitable for applications that require low noise levels, minimal vibration, a wide speed range, or high radial load capacity.

If your application requires a bearing with these features, you may want to consider other types of bearings, such as ball bearings or roller bearings with larger radial load capacity. However, if your application fits the strengths of needle roller bearings, then the NSK NTF NA4918R could be a cost-effective solution for your needs.

Details:

Need it urgently. Will there be a dock or forklift.

Model: NA4918R. Original protective plastic packaging present. Domestic shipping: the shipping price is shown for us lower 48 states. Weight lbs, oz: 4.

Box shows shelf wear and handwriting. Consignee: b. We choose the carrier. All goods are so as is' and with all faults meaning, without limitation, that.

Condition: new/other. Country of manufacture: japan. Precision needle roller design. After the return period has ended, you can no longer product.

Your phone number and business name. Local pick-up, prefer to pick it up yourself. Next day second air services are available.

specifications compressorshow:

• brand: Ntn
• mpn: Na4918r
• part type: Roller Bearing
• country of manufacture: Japan

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• time: 30 days

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• service: usps priority mail
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• in stock #: 5
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• prices: $95.55–$169.99
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• started: march 9, 2026

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