Radial shaft seal DBH 8779Pol — 19.00 x 30.00 x 5.50

DBH 8779Pol is a radial shaft seal reference, within Seals. Request a quote for 8779Pol via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 8779Pol radial shaft seal is a lip seal that mounts on the shaft and seals against the housing to retain lubricant and stop the entry of dust, water or particles. Its Lx design and its dimensions of 19 mm shaft, 30 mm housing and 5.50 mm height place it in compact, low-section applications, where axial space is limited. MR Accesorios Industriales carries this brand and advises you so you choose the right seal for your equipment.

This item is a DBH 8779Pol radial shaft seal, identified by its commercial designation and by the Lx design. Its dimensions are 19 mm shaft diameter (d), 30 mm housing diameter (D) and 5.50 mm height (h). The Lx design corresponds to a single-lip seal with metal case and sealing lip, intended for rotating shafts with lubrication. It is a thin-section component: those 5.50 mm of height allow it to be mounted in housings where a wider seal does not fit.

Typical applications of a seal of these dimensions include small gearboxes, electric motors, centrifugal pumps, compressors, fans and power transmission equipment. In all cases it performs the same function: keeping the oil or grease inside the assembly and preventing contaminants from entering from the outside. It is also used on machine tool shafts, conveyors and agro-industrial equipment where the seal works at moderate speeds.

To select and install a radial shaft seal, it is advisable to verify three things: that the shaft and housing diameters match the values on the product page, that the height is compatible with the available space, and that the lip is oriented toward the side of the fluid to be retained. The shaft must be clean, free of burrs or scratches in the contact area, and it is advisable to lubricate the lip before inserting it. A poorly installed seal or one with a worn shaft loses tightness even if the size is correct.

If you need an equivalent or a neighboring size, the most practical thing is to send us the code 8779Pol along with the shaft, housing and height dimensions, or directly the dimensions taken with a caliper. With that data we can look for an alternative within the same category of radial shaft seals, whether from the same brand or another line we carry. We can also advise you if the Lx design is not the right one for your application and it is worth evaluating another type of lip or case.

MR Accesorios Industriales carries the DBH brand and has more than 80 years of experience in bearings, power transmission and seals. If you want to request a quote for this seal or ask about a similar size, write to us on WhatsApp with the code 8779Pol or with the dimensions of your equipment and we will reply with the option that best fits.