DBH 8518Pol radial shaft seal — 38 x 55 x 8

DBH 8518Pol is a reference of radial shaft seal, within Seals. Request a quote for 8518Pol via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The DBH 8518Pol radial shaft seal is a lip seal designed for rotating shafts with a 38 mm diameter, 55 mm housing and 8 mm height. Its function is to retain lubricant inside the assembly and block the entry of dust, water or particles that accelerate wear on bearings and bushings. It is press-fitted into the housing and runs on the shaft surface, with the lip in continuous contact. It is a common replacement part in pumps, electric motors and gearboxes.

This item is a radial shaft seal of Lx-H-H design, with the dimensions indicated in the designation: shaft diameter 38 mm, housing diameter 55 mm and height 8.00 mm. The Pol suffix corresponds to the lip and material variant of the DBH line. The sealing lip runs on the rotating shaft and the outer diameter maintains the fit in the housing. It is a wear component: over time the lip hardens or becomes marked and starts to lose oil.

It is used in equipment with a rotating shaft where the lubricant must be separated from the environment: electric motors, centrifugal pumps, gearboxes, mixers, fans and belt or chain drives. It also appears in agricultural machinery and process equipment where dust or water attack the bearing. If the seal works alongside a bearing, it is advisable to check both at the same time: a worn lip lets contaminant through and ruins the race in a few hours of operation.

To install it, clean the housing and the shaft, check that there are no burrs or marks on the surface and lubricate the lip before inserting it. The seal is fitted with the lip facing the fluid to be retained and is seated fully or to the depth indicated on the drawing. Use a tube or spacer that presses on the outer diameter, never on the lip. If the shaft is worn, consider a seal with an offset lip.

If you need an equivalent, send us the code 8518Pol together with the shaft, housing and height dimensions, and the type of fluid and working temperature. With that data we look for alternatives in the same category or in another brand that MR carries. If the shaft is worn, we can look at variants with a different bore diameter or with an auxiliary lip. The more complete the information, the faster we reach the right option.

MR Accesorios Industriales carries the DBH brand as part of its line of seals and oil seals. If you already have the code at hand, send it via WhatsApp and we'll quote alternatives for your equipment. We can also help you identify the seal from the shaft and housing dimensions if you can't find the reference.