DBH 5276 radial shaft seal — 50 x 90 x 10

DBH 5276 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 5276 and any equivalents.

For maintenance teams working on rotating equipment, the DBH 5276 radial shaft seal is a replaceable lip seal that fits cylindrical housings. It keeps lubricant in and contaminants out along the shaft. The size callout is 50 mm shaft, 90 mm housing and 10 mm width, and the Lx design denotes a single lip with spring for lubricated rotating shafts. MR supplies this seal within its range of seals and oil seals.

The part number 5276 belongs to the DBH line of radial shaft seals. When you read the designation, the three figures that matter are d = 50 mm, D = 90 mm and h = 10 mm, matching shaft, housing bore and seal width respectively. The Lx variant uses a spring-loaded single lip. Its elastomer lip and metal case work as a pair to hold sealing performance while the shaft turns.

You will find seals of this size in gearboxes, speed reducers, centrifugal pumps, electric motors and other power transmission assemblies. Their job does not change from one machine to another: stop oil or grease from escaping and keep dust, water and particles away from bearings and gears. Treat it as a preventive maintenance item and replace it when leaks appear or when the equipment starts making unusual noises.

Correct installation starts with the shaft. Check that its hardness and surface finish are suitable and that there are no burrs or marks that could score the lip. Apply the same oil or grease used in the machine to the lip before pressing the seal into its bore, and drive it in with a tube that contacts the outer ring only, never the lip. The 90 mm outer diameter and 10 mm width need to seat squarely and centered in the housing.

If your equipment calls for another size or a different seal, send part number 5276 or the dimensions 50 x 90 x 10 mm through WhatsApp. The team can point you to the DBH designation that matches your application and will also tell you whether the Lx design is appropriate. Quotes are handled by WhatsApp or email with the part number and the quantity required.