SKF NKI 25/20 TN needle roller bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Needle roller bearing
We respond promptly.
Since 1945 · Martínez, Buenos Aires, Argentina
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Ask us about alternatives. Equivalence is verified for each reference and application.
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Description
SKF NKI 25/20 TN is a reference of needle roller bearing, within Bearings. Request a quote for NKI 25/20 TN via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The SKF needle roller bearing of the NKI series with TN suffix is a single-row radial bearing with inner ring and plastic cage. It is used in applications where radial space is limited and high load capacity is required. MR Accesorios Industriales carries this line.
The designation NKI identifies a needle roller bearing with inner ring and dimensions according to standard. The number that follows, as in NKI 5/12 TN, indicates the bore diameter and width: 5 mm inner diameter and 12 mm width. The suffix TN indicates a plastic cage, which reduces weight and improves sliding. Other examples are NKI 6/12 TN, NKI 6/16 TN, NKI 25/20 TN, NKI 28/20 TN, NKI 30/20 TN and NKI 30/30 TN. Learn more about this series by consulting MR Accesorios Industriales.
These bearings are used in machine tools, pumps, compressors, transmissions and packaging equipment, where radial space is critical. In Argentine industry, they are common in the automotive, metallurgical and food sectors. Their needle design allows them to withstand high radial loads in a low profile, making them ideal for gearboxes and pulleys. They are also used in linear motion equipment and industrial robots.
To select the right bearing, take into account the radial load, speed and environmental conditions. The TN cage is suitable for moderate temperatures; if there are high temperatures, consider other variants. Mounting requires precise alignment and adequate lubrication, as the needles are sensitive to misalignment. Ensure correct fitting in the housing and on the shaft to avoid premature wear. Sealing will depend on the contamination of the environment.
Regarding equivalences, needle roller bearings with inner ring and plastic cage from other brands can be interchanged if dimensions and load capacity match. However, always verify tolerances and internal clearance. The SKF NKI series is a market reference, and MR Accesorios Industriales carries it as a brand. For replacements, compare the measurements and consult with our technical team.
If you need an SKF NKI TN needle roller bearing, send us the code via WhatsApp to MR Accesorios Industriales. We will quote you and advise you so you can choose the right option for your application. We guarantee personalized attention and quality products.
Dimensions
Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm the dimensions and version against the manufacturer's data sheet.
Frequently Asked Questions
- What does the TN suffix mean in an SKF bearing?
- The TN suffix indicates that the bearing has a plastic cage, generally made of polyamide. This reduces weight, improves sliding and allows higher speeds compared to metal cages.
- What is the difference between an NKI bearing and an NK bearing?
- The NKI series includes an inner ring, while the NK series does not. The inner ring facilitates mounting on shafts without special treatment and allows higher axial loads in some configurations.
- How do I choose the right needle roller bearing for my machine?
- Consider the radial load, speed, available space and environmental conditions. Verify the shaft and housing dimensions. If you have doubts, consult us via WhatsApp and we will advise you.