Radial shaft seal DBH 6781 — 20.60 x 31.75 x 5.00

DBH 6781 is a radial shaft seal reference, within Seals. Request a quote for 6781 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 6781 radial shaft seal is a 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 lubricant and prevent the entry of dust, water or particles that accelerate wear on bearings and bushings. With dimensions of 20.6 mm shaft, 31.75 mm housing and 5 mm height, it is used in equipment where axial space is limited and a reliable seal is required.

This item is a seal from the DBH brand, identified with code 6781. Its dimensions are 20.6 mm shaft diameter, 31.75 mm housing diameter and 5.00 mm height. It corresponds to the Mz design, a lip configuration that works with the sealing edge resting on the shaft. The elastomer and internal spring are not detailed in the record, so it is advisable to confirm them against the manufacturer's data sheet before finalizing the order.

Radial shaft seals of this size are found in small electric motors, gearboxes, centrifugal pumps, compressors, fans and machine tools. They also appear on transmission shafts of agricultural equipment and on conveyor belts. In all cases they perform the same function: separate the lubricated side from the environment, extend bearing life and reduce downtime due to oil loss.

To install it, check that the shaft has no burrs or marks and that the housing is clean and free of deformation. Lubricate the lip before inserting it and use a flat driver so as not to twist it. When selecting a replacement, take into account the shaft speed, working temperature and fluid type. If the original seal has a different design, ask us and we will look for a compatible alternative.

If you need an equivalent or a nearby size, send us code 6781 or the dimensions of the old seal: shaft diameter, housing diameter and height. With that data we review the DBH line and the available alternatives. We can also evaluate design variants if the Mz does not suit your application. The more precise the information, the faster we reach the right option.

MR Accesorios Industriales supplies the DBH brand and has more than 80 years of experience in the field. If you want to request a quote for seal 6781 or ask about another size, write to us on WhatsApp with the code and we will reply shortly.