DBH 8139 radial shaft seal — 48 x 80 x 12

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

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

This item is a radial shaft seal of the DBH brand, identified by code 8139. It corresponds to a shaft diameter of 48 mm, a housing of 80 mm and a height of 12.00 mm. Design Lx indicates a single-lip configuration with spring, suitable for rotating shafts with lubrication. The sealing lip works on the shaft surface and the outer diameter fits by interference in the housing to prevent leaks.

Typical applications for a seal of these dimensions include gearboxes, speed reducers, centrifugal pumps, electric motors and belt or chain transmission equipment. In all cases it fulfills the function of retaining the oil or grease inside the assembly and protecting the bearings and gears from the ingress 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 as the equipment before inserting it and place the seal perpendicular to the shaft, with 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 casing. An out-of-square installation shortens the service life of the seal.

If you need an equivalent from another brand, send us code 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 advisable to consider a repair or a seal with greater height. We work with first-line brands, always with technical advice.

MR Accesorios Industriales sells the DBH brand as part of its line of seals and radial shaft seals. To request a quote, ask about an alternative size or request advice on installation, send code 8139 via WhatsApp and we will reply with the technical information you need.