DBH 5517 radial shaft seal — 32.3 x 51.4 x 9.92

DBH 5517 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 5517 and any equivalents.

The DBH 5517 is a radial shaft seal built to keep lubricant where it belongs and keep dust, dirt and other contaminants out of rotating assemblies. Its Mz configuration combines an elastomeric sealing lip with a metal outer case, so the lip wipes against the shaft while the case holds the seal firmly in the bore. With a shaft diameter of 32.30 mm, a housing diameter of 51.40 mm and a width of 9.92 mm, it fits common gearbox, pump and motor positions. Keeping this barrier in good condition is one of the simplest ways to protect bearings and gears from premature wear.

The reference 5517 belongs to the DBH line of radial shaft seals. Reading the number is straightforward: it identifies the seal in catalogs and in your own spare parts records, so a replacement can be pulled without measuring the old part. The three figures that matter for fit are shaft 32.30 mm, housing 51.40 mm and width 9.92 mm. The Mz design refers to the lip and metal body arrangement, intended for service where oil or grease must be held in and airborne grit kept out.

You will find this seal in gearboxes, centrifugal pumps, electric motors, compressors, and belt or chain drives. In each of those positions it does two jobs at once: it stops lubricant from escaping along the shaft and blocks particles from working their way into the bearing cavity. Agricultural equipment and other industrial machinery running in dusty or dirty surroundings also rely on this kind of barrier to keep rotating parts running clean.

Before fitting, confirm that the shaft and bore match the dimensions above. The lip goes toward the lubricant side, and a proper installation tool should be used so the lip is not nicked or rolled. A light film of lubricant on the lip before pressing it in helps the first run-in. Check the shaft for burrs, scratches or visible wear; if hardness is low, consider whether a wear sleeve is needed.

If you are cross-referencing a seal, have the 5517 code or your shaft and housing measurements ready. The team can help match the correct part and review other brands or lip configurations for your application. Send the code by WhatsApp or email to request a quote; replies come back promptly, and equivalents can be suggested when a direct number is not available.