Radial shaft seal DBH 8404 — 52.00 x 68.00 x 7.50/12.50

DBH 8404 is a radial shaft seal reference, within Seals. Request a quote for 8404 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 8404 oil seal is a radial lip seal designed to close off the passage of oil or grease at the point where a shaft rotates inside a housing. Its function is to retain the lubricant inside the mechanism and hold back the entry of dust, water or particles that accelerate wear. It is used in gearboxes, pumps, electric motors and power transmission equipment, where the shaft rotates continuously and sealing is critical to bearing service life.

This item is a DBH radial shaft seal with the designation 8404. Its dimensions are 52 mm shaft diameter, 68 mm housing diameter and a height of 7.50/12.50 mm, that is, a profile with two possible mounting heights depending on how it is seated. The indicated design is A 103, which defines the geometry of the lip and the metal body. It is a single lip seal, with an internal spring, for rotating shafts with permanent lubrication.

Typical applications for a seal of this size appear in gearboxes, centrifugal pumps, electric motors, compressors and power transmission equipment. It is also found in agricultural and industrial machinery where shafts rotate inside a lubricated crankcase. In all these cases the seal works against the environment: it retains the oil and prevents contaminants from entering and damaging bearings, gears or bushings.

To install it, check that the shaft and housing diameters match the indicated 52 mm and 68 mm, and that the chosen height corresponds to the available space. The lip must be lubricated and the shaft free of burrs or marks, with a suitable surface finish. If the shaft is worn, it is advisable to consider a nearby size or a seal with an offset lip before forcing the installation.

If you need an equivalent or a nearby size, send us the code 8404 or the dimensions of the old seal: shaft diameter, housing diameter and height. With that data we look for the alternative within the DBH line or other brands we carry. We can also advise you if the A 103 design is not the one that corresponds to your equipment.

MR Accesorios Industriales carries the DBH brand and has more than 80 years supporting Argentine industry. If this oil seal is for your equipment, send the code 8404 on WhatsApp and we will send you the quote. If you are unsure about the size, ask us before buying: it is faster than taking it apart twice.