Radial shaft seal DBH 1043 — 25.40 x 34.90 x 6.35

DBH 1043 is a radial shaft seal reference, within Seals. Request a quote for 1043 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 1043 oil seal is a single-lip radial seal with spring, designed for rotating shafts. Its function is to retain lubricant inside the housing and prevent dust, water or particles from entering. It is press-fitted into the housing and runs on the shaft with an oil film that ensures sealing and low friction. It is a wear part replaced during scheduled maintenance.

This DBH 1043 oil seal has a shaft diameter of 25.4 mm, a housing diameter of 34.9 mm and a height of 6.35 mm. The Mz design corresponds to a sealing lip with metal spring, which ensures constant contact on the shaft. The lip elastomer resists mineral oils and greases, and the outer metal case facilitates press-fitting into rigid housings. It is a standard size within the DBH radial shaft seal line.

It is used in gearboxes, centrifugal pumps, electric motors, transmission shafts and continuous process equipment. It also appears in machine tools, compressors and conveyor systems. In all cases, its mission is to protect bearings and gears from external contamination and prevent lubricant leaks. It is commonly found in equipment where the shaft rotates at moderate speeds and the working temperature does not exceed the elastomer limits.

To select the correct oil seal, verify that the shaft, housing and height dimensions match those of the machined housing. The shaft surface must be ground and free of grooves or burrs; excessive roughness accelerates lip wear. Before installation, lubricate the lip with the same oil used in the equipment and verify that the spring is correctly seated. The seal must enter perpendicular to the shaft, without blows that deform the case.

If you need a nearby size or an equivalent from another brand, send us the 1043 code or your sample dimensions. We can look for alternatives within the DBH line or other brands we carry. We also advise you if the Mz design is suitable for your application or if it is worth evaluating a double lip or a special material. The goal is for you not to be stuck with an oil seal that does not seal properly.

MR Accesorios Industriales carries the DBH brand as an official brand. If you have doubts about the compatibility of this oil seal with your equipment, write to us on WhatsApp and we will respond with the available technical information. Send us the 1043 code and we will provide the quote.