Radial shaft seal DBH 5551 — 49.20 x 68.22 x 12.70

DBH 5551 is a radial shaft seal reference, within Seals. Request a quote for 5551 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 5551 radial shaft seal is a lip seal designed to retain lubricant and exclude contaminants on rotating shafts. With dimensions of 49.20 mm shaft diameter, 68.22 mm housing bore and 12.70 mm height, and an Lz design, it is press-fitted into the housing and runs against the rotating shaft. It is a key component in gearboxes, pumps and power transmission equipment, where it prevents leaks and protects the bearings. MR Accesorios Industriales supplies this official brand and advises you on choosing the right seal.

This item is a DBH brand radial shaft seal, identified by part number 5551. Its dimensions are: shaft diameter (d) of 49.2 mm, housing bore diameter (D) of 68.22 mm and height (h) of 12.70 mm. The Lz design corresponds to a single-lip configuration with spring, suitable for applications where the seal sits in a cavity and seals against a rotating shaft. The lip elastomer and the internal spring ensure uniform contact and a pumping action that returns the oil to the inside.

Radial shaft seals such as the DBH 5551 are used in gearboxes, centrifugal pumps, electric motors, drive shafts and process equipment. Their function is twofold: to retain the lubricant inside the assembly and to prevent the entry of dust, water or particles that accelerate wear on bearings and gears. In environments with splashing or moisture, a properly selected seal extends equipment service life and reduces maintenance downtime.

To install this seal, check that the shaft and housing are clean, free of burrs and scratches. Lubricate the lip with the same oil or grease used in the equipment before inserting it, and press it in perpendicularly until it seats at the bottom of the cavity. Avoid striking the lip or the spring. If the shaft shows wear, consider a nearby size or a seal with an auxiliary lip. Correct alignment and a polished shaft surface are key to preventing premature leaks.

If you need an equivalent or a close size, send us part number 5551 or the current dimensions (shaft diameter, housing bore and height) via WhatsApp. At MR Accesorios Industriales we check the manufacturer's data sheet to offer you the most suitable option, whether from the same brand or from another line we carry. We can also advise you on the lip design according to the type of fluid and the operating conditions.

If you have any questions, our technical team is here to help you select the right seal. Send part number 5551 or a photo of the part via WhatsApp and we will reply with a quote. MR Accesorios Industriales has more than 80 years supporting Argentine industry with power transmission and sealing components.