Radial shaft seal SKF 15X21X3 HM4 V

SKF 15X21X3 HM4 V is a radial shaft seal reference, within Seals. Request a quote for 15X21X3 HM4 V via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The SKF HM V series radial shaft seal is a single-lip seal with a metal case and elastomer, designed to retain lubricant and exclude contaminants on rotating shafts. It is used in gearboxes, pumps, electric motors and power transmission equipment. Its compact design and contact lip allow installation in tight spaces, with good resistance to wear and temperature. MR Accesorios Industriales supplies this line for industrial replacement and maintenance.

The designation of these seals combines dimensions and suffixes. For example, 15X21X3 HM4 V indicates a seal for a 15 mm shaft, 21 mm outside diameter and 3 mm width. The suffix HM4 identifies the elastomer formulation, and the final V indicates that the lip is type V, a geometry that improves pumping and sealing in high-speed applications. When ordering a replacement, provide the full part number exactly as shown on the part or on the drawing.

These seals are used in the food, chemical, petrochemical and general manufacturing industries. In Argentina they are commonly found in electric motors, centrifugal pumps, gear reducers, mixers and conveyors. They are also used in process equipment where oil or grease must be contained and dust or water ingress prevented. Their compact size makes them suitable for confined spaces, and the HM4 elastomer offers good resistance to mineral oils and moderate temperatures.

To select the correct seal, check the shaft diameter, housing diameter and available width. The lip must run on a ground and lubricated surface; avoid shafts with splines or excessive roughness. During installation, use a press or suitable tool to avoid damaging the lip, and make sure the spring is on the fluid side to be retained. Correct alignment and initial lubrication extend the service life of the seal.

Regarding equivalents, radial shaft seals are identified by their dimensions and lip type. Brands such as SKF, Freudenberg, Trelleborg or National offer similar products, but each manufacturer may vary the elastomer formulation and lip design. Therefore, when replacing, do not rely on dimensions alone: consider the service conditions. If you have any doubts, ask us with the original part number and we will help you find the best option.

At MR Accesorios Industriales we supply the SKF brand as part of our seals and radial shaft seals line. If you need an HM V series radial shaft seal, send us the full part number on WhatsApp and we will quote you with no obligation. We can also advise you on installation and maintenance so your equipment keeps running without leaks.

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