Radial shaft seal DBH 5478Sil — 101.60 x 126.95 x 12.70

DBH 5478Sil is a radial shaft seal reference, within Seals. Request a quote for 5478Sil via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 5478Sil radial shaft seal is a lip seal that mounts on the shaft and seals against the housing to contain lubricant and stop the entry of dust, water or particles. Because of its dimensions —101.60 mm shaft, 126.95 mm housing and 12.70 mm height— it is used in transmission equipment and heavy machinery where a worn seal must be replaced without modifying the housing. MR Accesorios Industriales supplies this official brand and quotes it by WhatsApp.

This item is a radial shaft seal from the DBH line, identified as 5478Sil. Its dimensions are 101.60 mm shaft diameter, 126.95 mm housing diameter and 12.70 mm height, with Lx design. The Lx design corresponds to a single-lip seal with a metal case and sealing lip, intended to retain oil or grease in applications where the shaft rotates inside a cylindrical housing. The Sil nomenclature indicates the lip compound variant, which defines its behavior with respect to temperature and media.

Typical applications of a seal of this size appear in gearboxes, pumps, conveyor rollers, transmission shafts and continuous-process equipment. At those points, the seal performs two functions: preventing lubricant leakage to the outside and blocking the entry of contaminants that accelerate wear of bearings and gears. It is a wear part, so it is advisable to inspect it every time the assembly is disassembled and replace it if it shows a hardened lip, cuts or loss of elasticity.

To install it, verify that the shaft has no burrs or machining marks and that the housing is clean and free of deformation. Lubricate the lip with the same oil or grease used in the equipment before inserting it, and do so with a flat pusher to avoid twisting the case. The 12.70 mm height should sit flush or according to the housing shoulder. If the shaft shows wear, consider a nearby size or a seal with the lip in another position to avoid repeating the failure.

If you need an equivalent or a nearby size, send us the part number 5478Sil along with the shaft and housing dimensions, a photo of the part and the type of lubricant the equipment uses. With that data we can look for an alternative within the same DBH line or from another brand we supply, always confirming dimensions and design against the manufacturer's product page before quoting. We can also advise you if the housing accepts a seal of a different height.

MR Accesorios Industriales supplies the DBH brand as an official brand. If you already have the seal part number, write to us on WhatsApp and we will send you the quote with the data you need to decide on the replacement. If you are not sure of the size, tell us what equipment it is mounted on and we will help you identify it.