Radial shaft seal DBH 8040 — 75.00 x 90.00 x 10.00

DBH 8040 is a radial shaft seal reference, within Seals. Request a quote for 8040 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 8040 radial shaft seal is a lip seal designed to stop oil or grease from escaping on rotating shafts. With a 75 mm shaft diameter, 90 mm housing diameter and 10 mm height, it is press-fitted into the housing and runs against the shaft to retain lubricant and block dust or water from entering. It is a common wear part in gear reducers, pumps and motors, and should be replaced when a leak or rubbing noise appears.

This item is a seal from the DBH line, identified by the part number 8040. Its dimensions are 75.00 mm shaft diameter (d), 90.00 mm housing diameter (D) and 10.00 mm height (h). The Lx design corresponds to a seal with a single sealing lip and metal body, intended for press fitting into a cylindrical housing. The DBH 8040 nomenclature groups these three dimensions: if your shaft measures 75 mm and the housing 90 mm, this is the seal that fits.

Typical applications for a 75 x 90 x 10 mm seal appear in equipment with medium-size transmission shafts: gear reducers, centrifugal pumps, electric motors, mixers and conveyors. In all cases it performs the same function: keeping lubricant inside the assembly and preventing contaminants from entering from outside. It is also used as a secondary closure in housings and bearings operating in dusty or humid environments.

To install it correctly, check that the shaft has no burrs or wear in the contact area and that the housing is clean and free of dents. The seal is inserted with a press or support tube, never by striking the lip. Before fitting it, lubricate the lip with the same grease or oil used in the equipment. If the shaft shows a deep groove, consider a nearby size or a repair sleeve to avoid repeating the failure.

If part number 8040 is not the one you need, we can look for an equivalent or a nearby size. Send the shaft diameter, housing diameter and height you have measured, or the part number stamped on the old seal. With that data we review alternatives within the DBH line and from other brands MR Accesorios Industriales supplies, and we confirm which option fits without modifying the housing.

MR Accesorios Industriales has more than 80 years in the industry and supplies the DBH brand as part of its line of seals and oil seals. If you want a quote for the 8040 oil seal or to ask about a different size, send us the part number by WhatsApp and we will reply with the alternative that best suits your equipment.