Radial shaft seal SKF 30X47X8 HMSA7 R

SKF 30X47X8 HMSA7 R is a radial shaft seal reference, within Seals. Request a quote for 30X47X8 HMSA7 R via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

SKF radial shaft seals of the HMSA R series are lip seals designed to prevent lubricant leaks and the ingress of contaminants in rotating shafts. They are used in gear reducer boxes, pumps, electric motors and transmission equipment, where reliable sealing extends the life of bearings and gears. MR Accesorios Industriales offers this line with technical advice so you can choose the right size and compound.

The designation of these seals combines dimensions and suffixes. For example, 12X22X7 HMSA7 R indicates an inner diameter of 12 mm, an outer diameter of 22 mm and a width of 7 mm. The code HMSA7 identifies the lip geometry and the elastomer material, while the final R indicates a construction variant, usually with a steel spring. For each size, verify that the suffix matches the temperature and fluid conditions of your equipment.

In Argentine industry, these seals are found in speed reducers, centrifugal pumps, electric motors, transmission shafts and process equipment. They are also used in agricultural machinery, food plants and hydraulic systems, where sealing prevents oil losses and the entry of dust or water. The HMSA R series covers a range of metric sizes that facilitates replacement in imported and domestic equipment.

To select correctly, take into account the peripheral speed of the shaft, the operating temperature and the type of lubricant. The lip must be installed with the spring toward the fluid side to be retained. Before installing, verify that the shaft has no burrs or excessive wear; a rough surface accelerates failure. Lubricate the lip with the same oil as the equipment and make sure the seal enters perpendicular to the shaft to avoid premature leaks.

SKF radial shaft seals are interchangeable with equivalent products from other brands, as long as dimensions and lip type match. When replacing, compare not only the dimensions (inner diameter, outer diameter and width) but also the elastomer material and the presence of a spring. If the original equipment uses a specific suffix, it is advisable to keep that configuration so as not to compromise sealing.

If you need to replace a seal, send us the full part number or the shaft and housing dimensions via WhatsApp. At MR Accesorios Industriales we advise you so you can choose the right 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.