Radial shaft seal DBH 8139 — 48.00 x 80.00 x 12.00

DBH 8139 is a radial shaft seal reference, within Seals. Request a quote for 8139 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 8139 radial shaft seal is a lip seal that mounts in the housing and seals against the rotating shaft to retain lubricant and block the entry of dust, water or particles. Its dimensions are 48 mm shaft, 80 mm housing and 12 mm height, with Lx design. It is used in gearboxes, pumps, electric motors and power transmission equipment that run on 48 mm shafts and need reliable sealing in continuous service.

This item is a DBH brand radial shaft seal, identified by part number 8139. According to the record, it corresponds to a 48 mm shaft diameter, an 80 mm housing and a 12.00 mm height. The Lx design indicates a single lip configuration with spring, suitable for rotating shafts with lubrication. The sealing lip runs on the shaft surface and the outer diameter fits into the housing by interference to prevent leaks.

Typical applications for a seal of these dimensions include gearboxes, speed reducers, centrifugal pumps, electric motors and belt or chain drive equipment. In all cases it retains the oil or grease inside the assembly and protects the bearings and gears from the entry of external contaminants. It is a wear part that should be replaced when lubricant loss or shaft noise appears.

For installation, check that the shaft diameter is within tolerance and free of burrs or marks that could damage the lip. Lubricate the lip with the same grease or oil used in the equipment before inserting it, and place the seal perpendicular to the shaft, using a tube or press that bears on the outer diameter. If the housing has a chamfer, respect the seat so as not to deform the case. An installation that is out of square shortens the service life of the seal.

If you need a nearby size or an equivalent from another brand, send us part number 8139 or the dimensions 48 x 80 x 12 mm and we will look for it in our seal line. We can also advise you if the shaft or housing is worn and it is worth evaluating a repair or a seal with greater height. We work with in-house manufacturing in other lines, always with technical support.

MR Accesorios Industriales carries the DBH brand as part of its seal and oil seal line. To request a quote, ask about an alternative size or get advice on installation, send part number 8139 by WhatsApp and we will reply with the technical information you need.