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

DBH 6742Sil belongs to radial shaft seal, part of our Seals range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 6742Sil and any equivalents.

The DBH 6742Sil is a radial shaft seal that fits a 17 mm shaft and a 40 mm housing bore, with an 8.50 mm height. It keeps lubricant in and contaminants out of rotating assemblies, protecting bearings and bushings from premature wear. MR Industrial Accessories supplies this seal and can help you confirm the size or find a suitable alternative.

This seal follows the Lx design: a single lip with a metal case, intended for rotating shafts that need lubrication. The dimensions are shaft 17 mm, housing 40 mm, and height 8.50 mm. The 6742Sil code identifies the size within the DBH line, while the Sil suffix points to a specific sealing compound. Always verify that compound against the manufacturer's data sheet before you commit to a purchase.

You will find seals of this size in gearboxes, electric motors, centrifugal pumps, drive shafts, and other power transmission equipment. They also appear in agricultural machinery, conveyors, and process equipment where a shaft turns inside a housing and oil or grease must stay separated from the environment. In these setups, the seal acts as a dynamic barrier, and how long it lasts depends on the shaft surface and on proper lubrication of the lip.

During installation, check that the shaft is free of burrs, scratches, or wear in the contact zone, and that the housing is clean and not deformed. Lubricate the lip before you press the seal in, and seat it perpendicular to the shaft so the sealing edge is not damaged. If the shaft has a deep groove, you can sometimes shift the seal's position slightly or use a repair sleeve. Speed, temperature, and the fluid being retained also affect selection, so review those values against the technical data sheet.

If you need an equivalent from another brand or a different lip compound, send the code 6742Sil or the dimensions 17 x 40 x 8.50 mm by WhatsApp. MR Industrial Accessories cross-references the designation against the catalogue and offers compatible alternatives when the exact size is not listed. We can also assist if the original seal has no visible brand or if you only have measurements taken with a caliper.

MR Industrial Accessories carries the DBH brand as part of its seals and oil seals line, alongside bearings, housings, power transmission components, and lubricants. To request a quote, send the code 6742Sil or the dimensions by WhatsApp and we will reply with the quote and equivalent options. Our technical team can answer your questions about installation or design before you order.