Radial shaft seal DBH 8381 — 51.00 x 63.00 x 8.70

DBH 8381 is a radial shaft seal reference, within Seals. Request a quote for 8381 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 8381 radial shaft seal is a lip seal designed to keep lubricant in and contaminants out of rotating shafts. With dimensions of 51 mm shaft diameter, 63 mm housing bore and 8.70 mm height, and an Ms design, it is installed in gearboxes, pumps, electric motors and power transmission equipment. MR Accesorios Industriales supplies this official brand and advises you so you choose the right seal for your application.

The DBH 8381 is a single-lip radial shaft seal with a metal case and elastomer. Its dimensions are 51 mm shaft diameter (d), 63 mm housing bore diameter (D) and 8.70 mm height (h). The Ms design indicates a specific construction within the DBH line, intended to retain oil or grease on rotating shafts. It is press-fitted into the housing and its flexible lip runs on the shaft surface, compensating for small misalignments and vibrations typical of operation.

This type of seal is used in applications where a shaft rotates inside a housing and the lubricant must be separated from the environment. It is common in gearboxes, centrifugal pumps, electric motors, conveyor rollers, mixers and power transmission equipment. It also appears in machine tools and agricultural or road equipment, whenever the shaft and housing dimensions match those indicated. Its main function is to protect bearings and gears from the entry of dust, water or particles, and to prevent oil leaks.

To select the correct seal, verify that the shaft diameter is within the recommended tolerance and that the housing has the right diameter and depth for the dimensions 51 x 63 x 8.70 mm. The shaft surface must be ground, with no splines or burrs in the contact area, and it is advisable to lubricate the lip before installation. The Ms design defines construction features that affect installation: respect the press direction and use an installation tool that bears on the outer edge, never on the lip.

If you need an equivalent seal or a nearby size, the most practical thing is to send us the code 8381 or the current dimensions of your shaft and housing. With that data we can look for alternatives within the DBH line or other brands we supply, always respecting the dimensions and design type. We can also advise you if the available space forces you to consider a seal with a different height or a design with a dust lip.

To request a quote for the DBH 8381 seal or ask about a similar size, write to us on WhatsApp and send us the code 8381 along with the quantity you need. At MR Accesorios Industriales we reply with the technical and commercial information so you can move forward with your maintenance or project.