DBH 8278 radial shaft seal — 50 x 62 x 7

DBH 8278 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 8278 and any equivalents.

The DBH 8278 is a radial shaft seal built for rotating shafts. It keeps lubricant where it belongs and blocks dust, water and other contaminants from reaching the bearing cavity. The size is given as shaft 50.00 mm, housing 62.00 mm and height 7.00 mm, with an Lz design. MR Industrial Accessories supplies this brand and can help you confirm the correct seal for your equipment.

This seal carries the DBH brand and the code 8278. Reading the size in order: 50.00 mm for the shaft (d), 62.00 mm for the housing bore (D) and 7.00 mm for the height (h). The Lz design means a sealing lip plus a dust lip, which suits locations with moderate contaminant exposure. The elastomer body and the internal spring work together to hold the seal under continuous rotation. Always compare these three measurements against the shaft and housing before fitting the part.

You will find this size on centrifugal pumps, electric motors, gearboxes, reducers and other power transmission equipment. Agricultural machinery, process lines and hydraulic systems that need oil or grease contained and bearings shielded are also common users. Because 50 x 62 x 7 mm sits in the medium shaft range, it comes up often in industrial maintenance work. At moderate peripheral speeds and controlled temperatures, it does the job it was designed for.

Selection depends on several variables: how fast the shaft turns, the temperature in service, the lubricant in use and any differential pressure across the seal. The Lz design adds a barrier against dust, but a very aggressive environment may call for a double lip or a special material. When installing, coat the lip with the same oil or grease the application uses, seat the seal square to the shaft and avoid impacts. Handling it carefully at this stage pays off in seal life and protects the components behind it.

If you need an equivalent, get in touch. We can check alternatives from other brands and match the size to your shaft and housing. Send the original code, the three measurements and a photo of the part. MR Industrial Accessories also manufactures split plummer block housings, ANSI chains and sheaves, and distributes bearings, power transmission components and seals.

To request a quote for the DBH 8278 or to ask about other sizes, message us on WhatsApp and include code 8278. Our team can also review installation or compatibility questions before you order.