DBH 6178 radial shaft seal — 30.16 x 51.4 x 11.9

DBH 6178 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 6178 and any equivalents.

When a rotating shaft needs its lubricant kept in and outside contamination kept out, a radial lip seal is the part doing that work. This one, code 6178 from DBH, fits a shaft of 30.16 mm, a housing bore of 51.40 mm and a width of 11.90 mm, so it suits equipment where the mounting space is already defined. MR Industrial Accessories supplies this brand and can help you match the seal to your application.

The 6178 is built in the Mx design: a sealing lip combined with a metal outer body, made to sit in a cylindrical housing bore. Read the three figures in the designation as shaft 30.16 mm, housing 51.40 mm and height 11.90 mm. It serves as a replacement part on rotating shafts that need both lubrication retention and protection from dust and particles.

You will find seals of this type in gearboxes, pumps, electric motors, drive shafts and general industrial equipment. They work on two fronts at once: holding oil or grease inside the assembly and stopping dirt, water or chips from getting in. Where vibration or moderate temperatures are present, a correctly chosen seal helps bearings and gears reach their expected service life. Agricultural machinery, production lines and continuous process equipment are common places to see them.

Before installation, inspect the shaft for burrs or wear and confirm the housing is clean and not deformed. The lip needs a shaft surface with a suitable roughness; too rough a finish will wear it faster. Coat the lip with the same oil the equipment runs on, then seat the seal square to the shaft using a tube or press that applies force on the outer diameter. Do not strike the lip or the spring. If the shaft shows a groove or wear, look at a repair sleeve or a different size.

Looking for a seal that can replace the DBH 6178? The quickest route is to send the complete code, the shaft, housing and height measurements, and a photo of the part. With that information we can search our line of seals and oil seals for a compatible option. We can also tell you whether the Mx design fits your mounting or whether a different lip profile or material makes more sense.

To get a quote on the DBH 6178 or discuss a replacement, send the code to MR Industrial Accessories by WhatsApp or email. Our team answers promptly and can suggest equivalents or help you choose.