DBH 5520 radial shaft seal — 34.93 x 52.37 x 11.11

DBH 5520 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 5520 and any equivalents.

The DBH 5520 is a radial shaft seal built to hold lubricant in and keep dirt out where a shaft turns inside a housing. Its Mz configuration pairs a main sealing lip with a second lip that works as a dust excluder, so it holds up better in gritty or dirty surroundings. Shaft 34.93 mm, housing 52.37 mm, width 11.11 mm. MR Industrial Accessories supplies this brand, and our team can help you confirm the fit before you order.

Reading the DBH 5520 code starts with its dimensions: it fits a 34.93 mm shaft, seats in a 52.37 mm housing bore and measures 11.11 mm in overall width. The Mz version adds a secondary lip to the standard sealing lip, both carried on a metal case with an outer coating. The seal presses into the housing and rides on the rotating shaft, so the shaft diameter and bore size should be checked against the actual part before installation.

You will find this seal on gearboxes, centrifugal pumps, electric motors and conveyor rollers, among other rotating-shaft equipment. Its job there is twofold: keep oil or grease where it belongs and stop dust, water or particles from getting in. The double-lip layout suits plants, workshops and production lines where contamination is part of the daily environment, as well as agricultural and road machinery that works outdoors.

Choosing the right seal comes down to shaft speed, operating temperature and the lubricant in use. The Mz design makes sense when dirt exclusion matters, but the shaft surface needs to be smooth and free of burrs for the lips to seat properly. Lubricate the lip before pressing the seal in and use a proper installation tool rather than striking it directly. On a chamfered bore, check that the seal is fully seated.

If you need the same dimensions from another line or a close variant, send part number 5520 or your shaft and housing measurements. MR Industrial Accessories carries seals from several brands and can point you to the option that fits your application, along with mounting tools and compatible lubricants. Reach us by WhatsApp or email with the part number and we will respond promptly with a quote and any technical guidance you need.