DBH 5216 radial shaft seal — 80 x 100 x 10

DBH 5216 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 5216 and any equivalents.

Part number 5216 is a DBH radial shaft seal built for rotating shafts, where its job is to hold lubricant in and keep dust, water and particles out. The A 079 design is a single lip with a spring, and the outer elastomer grips the housing bore firmly while letting the seal seat without scoring the metal. You will find this size in gearboxes, pumps, electric motors and power transmission drives.

Reading the size is straightforward: 80.00 mm is the shaft diameter (d), 100.00 mm is the housing bore (D) and 10.00 mm is the height (h). Match those three figures against the equipment before ordering, since the same part number can be listed differently across catalogs. The spring-loaded lip rides on the shaft and holds oil or grease in place, while the elastomer outside the case keeps the seal from turning or working loose in the bore.

Where does it go? Gearboxes, centrifugal pumps, electric motors, compressors and belt- or chain-driven transmission equipment are the usual spots. In each case the seal separates the lubricated side from the environment, so bearings and gears stay clean. When a seal like this one lets go, the result is normally a leak, a contaminated sump and unplanned downtime, which is why it belongs on the maintenance schedule rather than on the list of parts to check after a failure.

Installation decides how long the seal lasts. Inspect the shaft first: it needs the correct hardness and surface finish, free of burrs, nicks or a visible wear groove. Coat the lip with the same oil or grease the equipment runs on, then press the seal in squarely with a tube that contacts the outer diameter only, never the lip. If the housing bore is worn, a seal with a wear sleeve or a retaining adhesive is worth considering.

If you are replacing a seal and cannot find the same one, send the complete part number plus the shaft, housing and height dimensions, and a photo of the old part. From there we can look at other brands or series that do the same job, and advise on lip design and elastomer type based on the temperature and the fluid in your application. Reach the team on WhatsApp or by email with part number 5216 or the size 80x100x10.