Radial shaft seal SKF 18X30X6 HMSA7P2 R

SKF 18X30X6 HMSA7P2 R is a radial shaft seal reference, within Seals. Request a quote for 18X30X6 HMSA7P2 R via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The SKF HMSA7P2 R series radial shaft seal is a lip seal designed to prevent lubricant leaks and the ingress of contaminants on rotating shafts. It is installed in bearing housings, electric motors, pumps and reducers, among other equipment. Its construction combines an elastomeric lip with a metal reinforcement that gives it rigidity and strength. MR Accesorios Industriales supplies this line, with technical advice to choose the right size.

The designation of these seals is read as a sequence of dimensions and characteristics. For example, 10X22X6 HMSA7P2 R indicates a seal for a 10 mm shaft, with an outer diameter of 22 mm and a width of 6 mm. The block HMSA7P2 identifies the category and variants of lip and material, while the final R indicates a specific version. In the examples 18X30X6, 50X72X7 and 70X90X7 the same pattern repeats: first the shaft diameter, then the outer diameter and finally the width. With these three data points, the seal can be located in the catalog.

These seals are used in food, chemical, petrochemical and general manufacturing industries. In Argentina they are commonly found in centrifugal pumps, electric motors, speed reducers, mixers and conveyors. They are also used in process equipment where oil or grease must be contained and bearings protected from dust, water or vapors. The HMSA7P2 R series covers a range of sizes from small shafts to larger diameter shafts, making it versatile for maintenance and replacement.

To select correctly, check the shaft diameter, the housing diameter and the available width. The lip must rest on a ground and lubricated surface; if the shaft is worn, consider a wear sleeve or an alternative location. Lubricating the lip with compatible grease before assembly reduces initial wear. Ensure perpendicular alignment between shaft and housing, and avoid striking the seal during installation. If the equipment operates with high vibration or temperature, ask about material variants.

Regarding equivalents, radial shaft seals are identified by their main dimensions and lip type. Different manufacturers may use their own nomenclature, but a 50X72X7 seal with a single lip can be interchanged with another of the same size and configuration, as long as the elastomer material and reinforcement are compatible with the fluid and working temperature. Matching dimensions are not enough: also verify the lip type, the spring and the material. MR Accesorios Industriales can help you validate interchangeability.

To request a quote, send us via WhatsApp the complete code that appears on the seal or on the equipment nameplate. If you don't have it, give us the shaft and housing dimensions and the width, plus a photo of the part. With that data we identify the SKF HMSA7P2 R reference you need and reply promptly. MR Accesorios Industriales has more than 80 years supporting Argentine industry with sealing and power transmission components.

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