Radial shaft seal DBH 5557 — 42.00 x 56.00 x 7.00

DBH 5557 is a radial shaft seal reference, within Seals. Request a quote for 5557 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 5557 radial shaft seal is a lip seal designed for rotating shafts. Its function is to retain lubricant inside the housing and prevent dust, water or contaminating particles from entering. With dimensions of 42 mm shaft diameter, 56 mm housing bore and 7 mm height, and an Lz design, it is a common replacement part in pumps, electric motors, gearboxes and power transmission equipment. MR Accesorios Industriales supplies it as part of its line of seals and oil seals for industrial maintenance.

This item is a radial shaft seal from the DBH brand, identified by part number 5557. Its standard dimensions are 42.00 mm shaft diameter (d), 56.00 mm housing bore (D) and 7.00 mm height (h). The Lz design corresponds to a specific construction configuration within the oil seal category, which defines the geometry of the lip and the metal body. It is a sealing component for rotating shafts, not for linear motion or static applications.

Typical applications of this oil seal include centrifugal pumps, electric motors, gearboxes, conveyor rollers and power transmission equipment in general. In all cases, its function is to confine the oil or grease inside the mechanism and protect the bearings or bushings from external contamination. It is a wear part that is usually replaced during preventive or corrective maintenance tasks, when leaks or dirt ingress are detected.

For installation, check that the shaft and housing are clean, free of burrs and deep marks. Lubricate the seal lip with the same oil or grease used in the equipment before inserting it. It must be positioned perpendicular to the shaft and without striking the lip; use a tube or press that presses on the outer diameter. If the shaft shows wear, consider a nearby size or a seal with an auxiliary lip. The final selection depends on speed, temperature and type of lubricant, data that is confirmed against the manufacturer's product page.

If you need an equivalent or a close size, the most practical approach is to send us part number 5557 or the current dimensions of the seal you are replacing. You can also indicate the shaft and housing dimensions, the type of lubricant and the working conditions. With that data, at MR Accesorios Industriales we guide you to find the right option within the DBH line or other brands we supply.

To request a quote for the DBH 5557 oil seal or ask about a similar size, send us the part number on WhatsApp. We reply promptly with the alternatives that best fit your equipment. MR Accesorios Industriales supplies this brand as part of its catalog of seals and oil seals for industry.