Needle roller bearing SKF NK 29/20 TN

SKF NK 29/20 TN is a needle roller bearing reference, within Bearings. Request a quote for NK 29/20 TN via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The SKF needle roller bearing of the NK series with TN suffix is a single-row radial bearing, without inner ring, with a plastic cage. It is used when radial space is limited and high load capacity is required. The shaft acts as the raceway, so it requires suitable surface treatment. It is a compact solution for power transmission and general machinery.

The designation NK … TN reads as follows: NK indicates a needle roller bearing without inner ring, with a machined outer ring and cage. The number after the slash is the bore diameter of the outer ring in millimeters, and the number after the slash is the total width in millimeters. For example, NK 5/10 TN has a 5 mm bore diameter and 10 mm width. The suffix TN indicates an injected plastic cage, which reduces weight and allows higher speed than a steel cage. This series is available in various combinations of diameter and width, such as NK 6/12 TN or NK 8/16 TN.

These bearings are used in industries where space is critical: machine tools, transmission equipment, pumps, compressors, electric motors, agricultural machinery and material handling equipment. In Argentina, they are common in the repair of gearboxes, transmission shafts and lifting mechanisms. Their ability to withstand high radial loads in a reduced diameter makes them ideal for replacing ball bearings in applications where greater rigidity and durability are needed.

To select correctly, take into account the radial load, speed and available space. The shaft must have adequate hardness and roughness to serve as a raceway; if not, an inner sleeve can be used. Lubrication is key: grease or oil depending on the application, and sealing must protect against contaminants. The alignment between shaft and housing must be precise to avoid parasitic axial loads. The TN cage withstands moderate temperatures and it is important not to exceed the limits indicated by the manufacturer.

Regarding equivalences, needle roller bearings without inner ring are interchangeable between brands if dimensions and tolerances match. The SKF NK series can be replaced by products from other brands with similar designations, but always verify the bore diameter, width and load capacity. Not all cages are the same: the plastic TN may have different temperature limits than steel ones. Consult MR Accesorios Industriales to confirm interchangeability before purchasing.

If you need this bearing, send the complete part number by WhatsApp to MR Accesorios Industriales. We will quote you promptly and advise you on the best option for your application. With more than 80 years in the market, we back every sale with technical knowledge and personalized attention.

This description provides guidance on the product type. Check the configuration and dimensions of this reference.