Radial shaft seal DBH 5540 — 45.00 x 61.00 x 10.00

DBH 5540 is a radial shaft seal reference, within Seals. Request a quote for 5540 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 5540 oil seal is a radial shaft seal with a 45 mm shaft diameter, 61 mm housing diameter and 10 mm height, in the Mz design. It is used to retain lubricant and exclude contaminants in rotating equipment, mounted on shafts that rotate inside a fixed housing. It is a wear part that should be replaced when oil leakage or dust ingress appears. MR Accesorios Industriales sells it as an official brand and advises you on choosing the correct replacement.

This item is a DBH radial shaft seal, identified with the designation 5540. Its dimensions are 45 mm shaft diameter, 61 mm housing diameter and 10 mm height. The Mz design corresponds to a configuration with a sealing lip and metal case, suitable for rotating shafts. The 5540 code makes it quick to locate in the catalogue and compare with other options in the same family. If you need to confirm the Mz design or the lip material, we verify it against the manufacturer's data sheet before quoting.

Typical applications for a seal such as the DBH 5540 are gearboxes, centrifugal pumps, electric motors, rollers and power transmission equipment. In all cases it performs two functions: keeping the lubricant inside the assembly and preventing particles, water or dust from entering. It is also used in machine tools and process equipment where the shaft rotates continuously. It is a wear part: it should be checked at every preventive maintenance interval and replaced at the first sign of leakage.

To install a radial shaft seal, the housing must be clean, free of burrs and scratches, and the shaft free of cutting splines in the lip area. Lubricate the lip with the same grease or oil used in the equipment before inserting it, and do so with a support tube that pushes on the outer diameter, never on the lip. Check that the seal sits square to the shaft. If the shaft shows wear, consider a repair sleeve or a nearby size. Selection depends on speed, temperature and the fluid to be retained.

If the 5540 is not the exact size, we can look for an equivalent or a nearby size within the DBH line and other brands we carry. For that we need the shaft diameter, the housing diameter and the height, plus a photo or the code stamped on the old seal. It also helps to know the equipment where it is mounted and the type of lubricant. With that data we compare options and confirm which one fits without modifying the housing.

MR Accesorios Industriales sells the DBH brand as an official brand and has more than 80 years of experience in bearings, power transmission and seals. If you already have the code 5540 or the size 45 x 61 x 10, send us the data on WhatsApp and we will send you the quote. If you are unsure, send a photo of the seal and the shaft and housing dimensions: we will help you identify the correct part.