DBH 5778 radial shaft seal — 38.1 x 57.15 x 12.7

DBH 5778 belongs to radial shaft seal, part of our Seals range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 5778 and any equivalents.

The DBH 5778 is a radial shaft seal engineered to keep lubricants in and contaminants out on rotating shafts. With a shaft diameter of 38.10 mm, a housing diameter of 57.15 mm, and a height of 12.70 mm, it fits shafts around 1.1/2 inches. Common uses include gearboxes, pumps, and motors, where dependable sealing helps extend bearing life and reduce downtime. MR Industrial Accessories LLC supplies this seal and can help you confirm the right fit for your application.

This seal carries the DBH brand and is identified by part number 5778. It features an Mz design, which combines a sealing lip with a metal body to block dust and retain lubricant. The key dimensions are: shaft 38.10 mm, housing 57.15 mm, width 12.70 mm. The 5778 code makes it easy to search in catalogs and cross-reference systems.

Typical applications include gearboxes, centrifugal pumps, electric motors, compressors, and drive shafts. On these machines, the seal prevents oil or grease loss and protects bearings from particle ingress. Because it suits 1.1/2 inch shafts, it appears in agricultural equipment, process machinery, and production lines. It is a wear part best replaced during planned maintenance windows.

For proper installation, ensure the shaft and housing are clean and free of burrs. Lubricate the seal lip with the same oil or grease used in the system before fitting. Press the seal in square to the shaft using a tool that contacts the outer diameter, not the lip. If the shaft shows wear, consider a version with an auxiliary lip. Speed, temperature, and lubricant type should guide your selection.

If you need an equivalent, send part number 5778 or your shaft and housing dimensions to MR Industrial Accessories LLC via WhatsApp. We can check alternatives within our seals line or suggest a suitable replacement. Our team also provides technical guidance for special applications. Quotes are prepared individually based on your requirements.