Radial shaft seal DBH 6421 — 50.80 x 73.03 x 19.05

DBH 6421 is a radial shaft seal reference, within Seals. Request a quote for 6421 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 6421 radial shaft seal is a lip seal designed to retain lubricant and exclude contaminants on rotating shafts. Its dimensions of 50.80 mm shaft, 73.03 mm housing and 19.05 mm height make it suitable for equipment with standard housings. The Mx design combines a main lip with a secondary exclusion lip, which improves performance in dusty or dirty environments. MR Accesorios Industriales sells this brand and advises you to choose the right seal.

This item is a radial shaft seal from the DBH brand, identified by part number 6421. Its dimensions are 50.80 mm shaft diameter, 73.03 mm housing diameter and 19.05 mm height. The Mx design indicates a configuration with a main sealing lip and an auxiliary exclusion lip, mounted on an outer metal ring. The lip elastomer is formulated to resist common industrial oils and greases. It is a direct replacement part for equipment that already uses this size.

Typical applications for this seal include gear reducers, centrifugal pumps, electric motors, conveyor rollers and power transmission equipment. In all cases, the seal is fitted in the cover or housing to prevent lubricant leaks and the entry of external particles. It is also used in agricultural machinery and in process lines where the shaft rotates continuously. If the equipment operates with heavy vibration or elevated temperature, it is advisable to verify the compatibility of the elastomer with the fluid and the service conditions.

To install the seal correctly, check that the shaft diameter is within the recommended tolerance and that the surface has no burrs or marks. Lubricate the lip with the same oil used in the equipment before inserting it. The housing must be clean and free of deformation; if it is damaged, the seal will not seal properly. When replacing, also check the condition of the shaft and the associated bearing. Poor alignment or a scratched shaft shortens the service life of the seal, even if the seal is good quality.

If you need an equivalent seal or a nearby size, the most practical thing is to send us part number 6421 or the current dimensions on WhatsApp. With that data we can look for alternatives in other brands or configurations within the same category. We can also advise you if the mounting space allows a seal of a different height or with another type of lip. The idea is that you are not left with the equipment down because of a part you cannot find.

At MR Accesorios Industriales we sell the DBH brand as part of our seals and oil seals catalogue. If this seal is for your maintenance, send us part number 6421 on WhatsApp and we will send you the quote. We can also advise you on installation or on selecting a replacement if the original is no longer available.