Radial shaft seal DBH 9876 — 21.00 x 40.00 x 10.00

DBH 9876 is a radial shaft seal reference, within Seals. Request a quote for 9876 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 9876 radial shaft seal is a lip seal designed to be mounted on a 21 mm shaft and seated in a 40 mm bore, with an overall height of 10 mm. Its function is to retain lubricant inside the assembly and block the entry of dust, water or particles that could damage bearings, bushings or gears. It is a common replacement part in gearboxes, pumps, electric motors and power transmission equipment operating in factories, plants and agricultural machinery.

This item is a radial shaft seal from the DBH brand, identified with part number 9876. Its dimensions are 21 mm shaft, 40 mm housing and 10.00 mm height. The A 158 design defines the geometry of the lip and the metal body, intended to work with rotating shafts and maintain sealing contact. The series nomenclature makes it easy to locate quickly in catalogs and maintenance lists, and part number 9876 is the one to keep at hand when ordering a replacement or an equivalent size.

Typical applications for this seal include gearboxes, speed reducers, centrifugal pumps, electric motors, compressors and belt or chain drive equipment. It is also used in agricultural machinery, earthmoving equipment and process lines where shafts rotate inside a housing and oil or grease must be contained. In all these cases, the seal prevents leaks and protects the bearings and bushings behind it.

When installing a radial shaft seal, check that the shaft has no burrs or wear and that the housing is clean and free of dents. Lubricate the lip before inserting it and press it in with a tube or spacer that applies force on the metal body, never on the lip. The 10.00 mm height and the A 158 design must be respected so the seal seats correctly. If the shaft shows a groove or marked wear, consider a nearby size or a design with an auxiliary lip.

If you need an equivalent seal or a close size, send us part number 9876, the shaft, housing and height dimensions, and a photo or sample of the old seal. With that data we can look for an alternative within the DBH line or from other brands we carry, always confirming the manufacturer's data sheet before quoting. We can also advise you if the seal is mounted in an assembly with bearings or bushings that should be reviewed at the same time.

To request a quote for the DBH 9876 seal or ask about a similar size, message MR Accesorios Industriales on WhatsApp with the part number and dimensions. We will reply with the alternative that best fits your equipment. More than 80 years helping factories, industries and farms select seals, bearings and power transmission products.