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NTN needle roller bearing · NTN NK35/20RCT
NTN NK35/20RCT needle roller bearing

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NTN NK35/20RCT needle roller bearing

Manufacturer Part NumberNK35/20RCT
Brand
NTN
Category
Bearings
Series
NK
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Since 1945 · Martínez, Buenos Aires, Argentina

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Description

NTN NK35/20RCT is a reference of needle roller bearing, within Bearings. Request a quote for NK35/20RCT via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The NTN NK series needle roller bearing is a single-row radial bearing with a machined outer ring and no inner ring, designed to support high radial loads in very small spaces. Its construction allows it to be mounted directly on a hardened and ground shaft, which simplifies the assembly and reduces weight. It is used in applications where the available outer diameter is limited but high load capacity is required, such as machine tools, transmission equipment and automotive components.

The NK series designation reads as follows: the letters NK identify a needle roller bearing with a machined outer ring and no inner ring; the first number indicates the bore diameter (in millimeters) and the second, after the slash, the overall width. The suffix RCT indicates that the bearing incorporates a double-lip contact seal, which retains the grease and excludes contaminants. For example, NK20/16RCT has a 20 mm bore diameter and a 16 mm width, while NK35/20RCT combines a 35 mm bore with a 20 mm width. Find more sizes in the NK series at MR Accesorios Industriales.

These bearings are used in industries such as automotive (gearboxes, pumps), machine tools (spindles, guides), power transmission (pulleys, gears) and materials handling equipment. In Argentina, we find them in production line maintenance, pumping equipment, compressors and agricultural machinery. Their ability to support high radial loads with a low profile makes them ideal for confined spaces where other bearings do not fit. MR Accesorios Industriales sells them throughout the country.

To correctly select an NK bearing, take into account the radial load, the speed and the environment. The RCT seal is suitable for environments with moderate dust or humidity, since the contact lip prevents particles from entering. The shaft must have a surface hardness and roughness compatible with the raceway, and it is essential to align the housing well to avoid parasitic axial loads. Lubrication can be with high-quality grease; in high-speed assemblies, check the internal clearance and the cage type.

NTN NK series needle roller bearings can be interchanged with those of other brands that follow the same dimensional nomenclature, such as SKF, FAG or NSK, as long as the bore, outer diameter and width match. The sealing suffix may vary between manufacturers (for example, RS, 2RS, etc.), but dimensional interchangeability is usually maintained. If you have the code from another brand, at MR we will tell you the exact equivalent and quote you the part you need.

Do you need an NK needle roller bearing for your equipment? Send the code or the measurements on WhatsApp to MR Accesorios Industriales and we will quote you shortly. We work with NTN and can advise you on selecting the right seal and lubrication for your application.

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 RCT suffix mean on an NK bearing?
RCT indicates that the bearing has a double-lip contact seal. This seal retains lubrication and protects against the entry of contaminants, ideal for environments with dust or humidity. It is important to check the permissible speed, since the contact seal generates some friction.
How do I choose between an NK bearing with and without a seal?
If the environment has dust, chips or humidity, choose the sealed version (RCT). If the bearing works in a closed, well-lubricated system, the open version may be sufficient and allows higher speeds. At MR we advise you according to your application.
What sizes in the NK series do you have available?
We work with the NTN NK series in various combinations of bore diameter and width. We cover from 14 mm to 47 mm bore, with widths of 16, 20 and 30 mm, among others. Ask us about the exact size you need and we will quote it for you.
Request a quote for NK35/20RCT via WhatsApp
Request a quote on WhatsApp