DBH 5050 radial shaft seal — 17 x 40 x 6

DBH 5050 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 5050 and any equivalents.

When a rotating shaft needs a reliable barrier between lubricant and the outside environment, the DBH 5050 radial oil seal is one option to consider. It measures 17.00 mm at the shaft, 40.00 mm at the housing and 6.00 mm in height, and its Lx design combines a sealing lip with a metal outer case for press-fit installation in a cylindrical bore. MR Industrial Accessories supplies this brand and can help you match the seal to your equipment.

Reading the code: the 5050 designation identifies this DBH seal, while the three dimensions follow the usual order of shaft diameter (d), housing bore (D) and height (h). Here that means 17.00 mm, 40.00 mm and 6.00 mm respectively. The Lx configuration uses a flexible lip running against the shaft and a metal body that holds the seal in the housing. The lip keeps oil or grease inside and blocks dust and water from entering. Because the lip wears against the shaft over time, this is a part you replace during scheduled maintenance.

Where you will find it: gearboxes, centrifugal pumps, electric motors, reducers and belt- or chain-driven transmission equipment are common hosts for a seal this size. Fan, mixer and conveyor shafts also use it. In each case the seal isolates the lubricant from the surrounding environment and keeps particles away from bearings and gears. The compact envelope suits assemblies where space around the shaft is limited but sealing must still be dependable.

Installation notes: inspect the shaft for burrs or a worn track and make sure the housing bore is clean and free of dents before pressing the seal in. Lubricate the lip, then drive the seal with a tool that contacts the outer edge only — never the lip itself. Speed, operating temperature and lubricant type all influence which seal variant is correct. If the shaft shows a groove from the old lip, an auxiliary lip or a wear sleeve may be needed.

Need a different size or a cross-reference? Send the full code, the shaft, housing and height dimensions, and a photo of the part if you have one. We carry alternatives from other brands in the same category and will point you to the option that fits your equipment without sacrificing sealing performance.

MR Industrial Accessories supplies the DBH brand. For a quote on code 5050, message us on WhatsApp or by email with the part number and dimensions, and we will respond promptly. We can also advise on installation and equivalent sizes.