Radial shaft seal DBH 8766 — 19.00 x 40.00 x 7.00

DBH 8766 is a radial shaft seal reference, within Seals. Request a quote for 8766 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 8766 radial shaft seal is a lip seal mounted between a rotating shaft and a fixed housing to retain lubricant and block the entry of dust, water or particles. Because of its dimensions —19 mm shaft, 40 mm housing and 7 mm height— it is used in gearboxes, pumps, electric motors and power transmission equipment. It is a wear part: when the lip hardens or a leak appears, it is replaced with a seal of the same designation.

This item is a radial shaft seal from the DBH line, identified by the code 8766. Its dimensions are 19.00 mm shaft diameter, 40.00 mm housing diameter and 7.00 mm height, with an Lx design. The Lx design corresponds to a single-lip seal with a spring, intended for rotating shafts with lubrication and moderate speeds. The sealing lip works on the shaft and the outer diameter fits by interference in the housing, so the seal stays firm without the need for additional retainers.

Typical applications for a seal of these dimensions appear in gearboxes, centrifugal pumps, electric motors, rollers and transmission equipment. In every case it performs the same function: keeping oil or grease inside the assembly and preventing the entry of contaminants that accelerate wear on bearings and gears. It is also found in machine tools, compressors and process equipment where the shaft rotates inside a machined housing.

To install it, check that the shaft has no burrs, scratches or wear in the contact area: a marked shaft ruins the new lip within a few hours. Lubricate the lip with the same grease or oil used in the equipment before inserting it, and place the seal perpendicular to the shaft, without striking it from the side. If the housing has a shoulder or a radius, respect the mounting depth so that the lip does not rest on a worn area. If in doubt, consult the manufacturer's product page.

If you need an equivalent seal or a nearby size, the most practical approach is to send us the code 8766 together with the shaft, housing and height dimensions shown on the equipment. With that data we can look for an alternative from the same brand or another line that performs the function. A photo of the old seal and the housing also helps, especially when the original code is no longer legible. The number does not have to be identical: what matters is that the three dimensions match.

MR Accesorios Industriales carries the DBH brand within its line of seals and oil seals. If you want to request a quote, send the code 8766 by WhatsApp and we will reply with the alternative that best fits your equipment. You can also ask about seals in other sizes from the same category.