DBH 5843 radial shaft seal — 57 x 85 x 9.5

DBH 5843 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 5843 and any equivalents.

A radial shaft seal like the DBH 5843 keeps lubricant where it belongs and keeps contaminants out. It fits a 57 mm shaft, an 85 mm housing bore and a 9.50 mm height, and it carries the Mx design. MR Industrial Accessories LLC supplies this seal to maintenance and purchasing teams in the United States and Latin America.

Reading the code helps when you order. DBH identifies the seal family, 5843 is the designation, and the three figures describe the fit: shaft 57 mm, housing 85 mm, height 9.50 mm. The Mx design means a sealing lip combined with an outer metal case, a configuration built for rigid housings and shafts that turn continuously. The lip rides on the shaft with slight interference, and a thin film of lubricant sits between them to limit wear while holding the seal.

Seals in this size range show up in gearboxes, centrifugal pumps, electric motors, rollers and other power transmission assemblies, as well as in machine tools and process equipment. In each case the job is the same: protect the bearings and the lubricant, and stop dust, water or particles from reaching the inside of the mechanism.

Installation decides how long the seal lasts. Check that the shaft is clean and free of burrs, nicks or rust, and confirm the sealing surface has the right hardness and finish. Coat the lip with lubricant before pressing it in, and seat the seal square to the shaft instead of driving it in at an angle. When you pick a replacement, match shaft diameter, housing diameter, height and design type; if the original has an auxiliary lip or a spring, keep that configuration.

If you are replacing an older seal, send the code 5843 or simply the three dimensions of the part you removed. With that information we can check the DBH line or other brands we carry for a suitable equivalent. We can also help you judge whether wear on the housing or shaft calls for a taller seal or a different design.