DBH 6781 radial shaft seal — 20.6 x 31.75 x 5

DBH 6781 is a reference of radial shaft seal, within Seals. Request a quote for 6781 via WhatsApp or email with the quantity you need; we respond promptly with the quote 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 job is to retain lubricant and keep out dust, water or particles that speed up 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 needed.

This item is a seal from the DBH brand, identified by part number 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 the internal spring should be confirmed 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 in agricultural equipment and on conveyor belts. In every case they serve the same purpose: separating the lubricated side from the environment, extending bearing life and reducing downtime caused by oil leaks.

For installation, 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 it does not twist. When selecting a replacement, take into account shaft speed, operating temperature and the type of fluid. If the original seal has a different design, contact us and we will look for a compatible alternative.

If you need an equivalent, send us part number 6781 or the dimensions of the old seal: shaft diameter, housing diameter and height. With that data we check the DBH line. We can also evaluate design variants if the Mz does not suit your application. The more precise the information, the faster we get to the right option.

MR Accesorios Industriales sells the DBH brand. If you want a quote for seal 6781 or to ask about another size, write to us on WhatsApp with the part number and we will reply shortly.