Radial shaft seal DBH 9139 — 40.00 x 54.00 x 7.00

DBH 9139 is a radial shaft seal reference, within Seals. Request a quote for 9139 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 9139 radial shaft seal is a lip seal designed for rotating shafts. With dimensions of 40 mm shaft diameter, 54 mm housing bore and 7 mm height, it provides reliable sealing against lubricant leaks and ingress of contaminants. Its Lx design combines a sealing lip with a dust lip, which improves protection in dusty or dirty environments. It is a key component for maintaining the service life of bearings and power transmission systems in industrial equipment.

This item is a radial shaft seal from the DBH brand, identified by part number 9139. Its dimensions are 40 mm shaft diameter (d), 54 mm housing bore diameter (D) and 7 mm height (h). The Lx design indicates that it has a main sealing lip and a secondary exclusion lip, which provides an additional barrier against external particles. It is manufactured with high-resistance elastomers and a metal spring that ensures uniform pressure on the shaft.

Typical applications for this seal include gearboxes, pumps, electric motors, speed reducers and drive shafts in general. It is used to retain oil or grease inside a mechanism and to prevent external agents such as dust, water or chips from entering the bearing or the lubrication area. It is common in industrial equipment, agricultural machinery and conveying systems operating under demanding conditions.

For correct installation, verify that the shaft and housing diameters match the indicated dimensions. The shaft must be free of burrs, scratches or excessive wear; otherwise, the lip will not seal properly. Lubricate the lip with the same oil or grease used in the equipment before inserting it, and install the seal with a press or suitable tool, applying uniform pressure on the outer circumference. Avoid striking the sealing lip. If the housing shows wear, evaluate the use of a seal with a larger outer diameter or a repair sleeve.

If you need an equivalent seal or a nearby size, contact us via WhatsApp. We can look for alternatives in other brands or with slight dimensional variations, as long as the sealing functions are maintained. We also offer advice on selecting the lip material (nitrile, Viton, polyurethane) according to the temperature and the fluid to be retained. At MR Accesorios Industriales we carry the DBH brand and have more than 80 years of experience in the field.

To request a quote for the DBH 9139 seal, send part number 9139 via WhatsApp to MR Accesorios Industriales. We will reply shortly with purchasing options. If you have questions about the application, our technical team can help you confirm that this model is the right one for your equipment.