Radial shaft seal DBH 5121 — 15.00 x 35.00 x 10.00

DBH 5121 is a radial shaft seal reference, within Seals. Request a quote for 5121 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 5121 radial shaft seal is a lip seal that mounts in a component housing and seals against the rotating shaft to retain lubricant and block the entry of dust, water or particles. With a 15 mm shaft diameter, 35 mm housing and 10 mm height, and Lx design, it is a commonly used size in industrial and transport equipment. MR Accesorios Industriales carries it as part of its line of seals and oil seals.

This item is a radial shaft seal from the DBH brand, identified with part number 5121. Its dimensions are 15.00 mm shaft diameter (d), 35.00 mm housing diameter (D) and 10.00 mm height (h). The Lx design corresponds to a single-lip seal with a spring, intended for rotating shafts with lubrication. The elastomer lip bears against the shaft and the spring maintains contact pressure; the outer body is fitted by interference in the housing. It is used to separate two environments: it retains oil or grease inward and blocks contaminants outward.

Typical applications for an oil seal of this size appear in gearboxes, pumps, electric motors, drive shafts, rollers and motion equipment. In the food, chemical or process industries it is chosen according to the elastomer compatible with the fluid and the working temperature. In old or imported equipment, the oil seal is often the part replaced when a lubricant leak appears or when dirt enters the bearing. It is also used as a secondary closure in assemblies that already have a main seal.

To install a radial shaft seal, three things must be verified: that the shaft diameter is within tolerance, that the housing has no burrs or marks, and that the seal height matches the housing depth. The lip is lubricated before installation and is seated with a tube of the appropriate diameter, never by striking the seal directly. If the shaft is worn or has a marked groove, it is advisable to evaluate a seal with the lip in another position or a repair sleeve. Elastomer selection depends on the fluid, temperature and peripheral speed.

If you need a nearby size, an equivalent from another brand or a seal with a different combination of diameters, send us part number 5121 or the shaft, housing and height dimensions. You can also send a photo of the old seal or the assembly drawing. At MR Accesorios Industriales we cross-check the designation against the manufacturer's data sheet and offer alternatives within the same category. If the Lx design does not suit your application, we guide you toward the lip type or material that best fits.

To request a quote for the DBH 5121 oil seal or ask about a similar size, write to us by WhatsApp with part number 5121 and the dimensions. We reply with the alternatives available in our line of seals and oil seals. MR Accesorios Industriales works with industrial brands and in-house manufacturing, and supports the technical selection of each part.