DBH 6742Sil radial shaft seal — 17 x 40 x 8.5

DBH 6742Sil is a reference of radial shaft seal, within Seals. Request a quote for 6742Sil via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The DBH 6742Sil radial shaft seal is a lip seal that mounts on a 17 mm shaft and seals against a 40 mm housing, with a height of 8.50 mm. Its function is to retain lubricant inside the assembly and block the entry of dust, water or particles that accelerate wear on bearings and bushings. It is a common replacement part in rotating equipment, and at MR Accesorios Industriales we quote it according to the exact size you need.

This item is a seal with Lx design, with the following dimensions: shaft diameter (d) of 17 mm, housing diameter (D) of 40 mm and height (h) of 8.50 mm. The Lx design corresponds to a single-lip seal with metal case and sealing lip, intended for rotating shafts with lubrication. The 6742Sil nomenclature identifies the size within the DBH line, and the Sil suffix is usually associated with a specific sealing compound that should be confirmed against the manufacturer's data sheet before purchasing.

Typical applications of a seal of this size appear in gearboxes, electric motors, centrifugal pumps, drive shafts and power transmission equipment in general. It is also used in agricultural machinery, conveyors and process equipment where there is a shaft rotating inside a housing and oil or grease needs to be separated from the environment. In all those cases, the seal works as a dynamic barrier and its service life depends on the surface condition of the shaft and proper lubrication of the lip.

To install a radial shaft seal, verify that the shaft has no burrs, scratches or wear in the contact area, and that the housing is clean and free of deformation. The lip is lubricated before inserting it, and the part is seated perpendicular to the shaft so as not to damage the sealing edge. If the shaft shows a deep groove, it is sometimes advisable to slightly shift the position of the seal or consider a repair sleeve. Selection also depends on speed, temperature and the fluid to be retained, data that should be checked against the technical data sheet.

If you need an equivalent from another brand or a seal with a different lip compound, send us the code 6742Sil or the dimensions 17 x 40 x 8.50 mm by WhatsApp. At MR Accesorios Industriales we cross-reference the designation with the catalogue and offer compatible alternatives when the exact size is not in the catalogue. We can also advise you if the original seal has no visible brand or if you only have the dimensions measured with a caliper.

MR Accesorios Industriales supplies the DBH brand as part of its seals and oil seals line, along with bearings, housings, power transmission and lubricants. To move forward with the quote, send the code 6742Sil or the dimensions by WhatsApp and we will reply with the quote and equivalent options. If you have questions about installation or design, the technical team can advise you before you place the order.