Radial shaft seal DBH 8419 — 46.30 x 66.60 x 6.40

DBH 8419 is a radial shaft seal reference, within Seals. Request a quote for 8419 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 8419 radial shaft seal is a lip seal designed to retain lubricant and exclude contaminants on rotating shafts. Its dimensions —46.30 mm shaft, 66.60 mm housing and 6.40 mm height— make it suitable for equipment with reduced axial space. It is press-fitted into the bore and runs on the shaft with a flexible lip that compensates for small misalignments. It is a wear part: it should be replaced when leaks appear or shaft play is detected.

This item is a radial shaft seal from the DBH line, identified by the code 8419. Its dimensions are: shaft diameter 46.30 mm, housing diameter 66.60 mm and height 6.40 mm. The Mz design corresponds to a configuration with a sealing lip and metal case that fits into the housing by interference. The reduced height of 6.40 mm allows installation in spaces where other seals do not fit. DBH is an official brand that MR carries, so the replacement keeps the geometry and material specified by the manufacturer.

Radial shaft seals such as the DBH 8419 are used in gearboxes, pumps, electric motors, transmission shafts and process equipment. Their function is twofold: to retain the oil or grease inside the assembly and to prevent the entry of dust, water or particles. In applications with continuous rotation, the lip runs on a ground surface and generates a lubricating film that reduces wear. They are common in corrective maintenance, when a loss of lubricant is detected around the bearing or housing area.

To select the correct seal, verify that the three dimensions match the shaft and housing: 46.30 mm, 66.60 mm and 6.40 mm. Check the condition of the shaft surface: if it has scratches, wear or burrs, the new lip will not seal properly and the shaft should be repaired or replaced. During installation, lubricate the lip with the same grease or oil used in the equipment, insert it perpendicular to the shaft and tap only on the outer ring with a support tube. Avoid hitting the lip or the spring. If the housing has burrs, clean it before installing.

If you need a nearby size or an equivalent, send us the code 8419 together with the shaft, housing and height dimensions, and a photo of the old seal if possible. We can also look for alternatives if the Mz design is not available or if the space allows another height. We work with official brands that MR carries and with in-house manufacturing in other lines, so we can advise you on the most convenient option according to the equipment and its use.

MR Accesorios Industriales has more than 80 years in the industry and since 1945 has supported workshops, factories and process plants. If this DBH 8419 seal is the one you are looking for, write to us on WhatsApp with the code and we will send you the quote. We can also advise you if you are unsure between two sizes or if the current seal has no legible identification. Send your inquiry and we will resolve it.