Radial shaft seal DBH 1339

DBH 1339 is a radial shaft seal reference, within Seals. Request a quote for 1339 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 1339 seal is a radial seal with A 378 design that fits a 55 mm housing and has a 10 mm height. Its function is to retain lubricant inside the assembly and block the entry of dust, water or particles, protecting bearings, shafts and gearboxes. It is a wear part: when the race is marked or the lip loses elasticity, it should be replaced to prevent leaks and contamination in the mechanism.

This item is a DBH 1339 radial shaft seal, identified with code 1339 and A 378 design. According to the record, the housing (D) measures 55 mm and the height (h) is 10.00 mm. The sealing lip works on the rotating shaft and the outer case remains fixed in the housing, creating the seal of the assembly.

It is used in gearboxes, pumps, electric motors, rollers and transmission equipment where oil or grease must be contained and contaminants kept out. It also appears in agricultural machinery, conveyors and process lines operating with dust or moisture. In all these cases it performs the same function: separating the lubricated side from the environment and supporting the service life of the bearings and gears inside.

For installation, verify that the 55 mm housing is clean, free of burrs or marks, and that the shaft is not worn in the lip contact area. Lubricate the lip before inserting it and place the seal perpendicular, without hitting the seal. When selecting a replacement, consider the housing diameter, height, fluid type and operating temperature. If the shaft is scratched, consider repairing it or using a different shaft size.

If you need an equivalent or a nearby size, send us the code 1339, the housing and height dimensions, and a photo or sample of the old seal. With that data we look for alternatives within the DBH line or other brands we supply. We can also advise you if the A 378 design is not suitable for your application and it is better to switch to another lip profile or a different material.

MR Accesorios Industriales supplies the DBH brand as an official brand. If you want to confirm equivalents or a nearby size, write to us via WhatsApp with the code 1339 and the housing dimensions. We will respond with the option that best fits your equipment.