DBH 5688 radial shaft seal — 47.63 x 68.22 x 12.7

DBH 5688 is a reference of radial shaft seal, within Seals. Request a quote for 5688 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The DBH 5688 radial shaft seal is a lip seal designed to close off the passage of oil or grease on rotating shafts and prevent dust and water from entering the mechanism. Due to its dimensions — 47.63 mm shaft, 68.22 mm housing and 12.70 mm height — it is mounted in gearboxes, pumps, electric motors and power transmission equipment. It is a wear part: when lubricant loss or contaminant entry appears, it is replaced with a new one.

This item is a radial shaft seal from the DBH brand, identified with part number 5688. Its dimensions are: shaft diameter 47.63 mm, housing diameter 68.22 mm and height 12.70 mm. The indicated design is Lz, which defines the geometry of the lip and the outer body. It is a single-lip seal with spring, intended to retain lubricant on a shaft that rotates inside a cavity. The 5688 nomenclature follows the manufacturer's catalog and should not be confused with inch dimensions or with part numbers from other lines.

Typical applications for a seal of this size include gearboxes, speed reducers, centrifugal pumps, electric motors, transmission shafts and process equipment. In all cases it performs the same function: keep the lubricant inside the assembly and block the entry of dust, water or particles that accelerate wear on bearings and gears. It is also used as a secondary closure in equipment where there is a pressure difference between the interior and the environment.

To install it correctly, check that the shaft has no burrs or deep marks in the contact area and that the housing is clean and free of deformation. Lubricate the lip before inserting it and place the seal with a tube or shim that presses on the outer body, never on the lip. The selection depends on shaft speed, working temperature and the type of lubricant; if those data are not defined, it is advisable to check them with the supplier before ordering.

To quote part number 5688 or the three dimensions — shaft, housing and height — and the type of application, send us an equivalent from another brand. With that data we can locate the alternative within the DBH line or other brands we sell. We can also guide you if the original seal has a special design, such as a double lip or reinforced metal body, so that the replacement is the correct one.

MR Accesorios Industriales sells the DBH brand. To request a quote, send part number 5688 on WhatsApp and we will reply with the technical and commercial information you need to make the purchase decision.