Radial shaft seal DBH 5420 — 20.00 x 47.00 x 7.00

DBH 5420 is a radial shaft seal reference, within Seals. Request a quote for 5420 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 5420 oil seal is a single-lip radial shaft seal that mounts on a 20 mm shaft and seals against a 47 mm housing, with a 7 mm height. Its Lx design combines a sealing lip with a dust lip, so it retains lubricant while at the same time blocking dirt from entering from the outside. It is a common wear part in gearboxes, pumps and electric motors, where oil or grease must stay inside the assembly.

This oil seal is identified by its designation 5420 and by the dimensions shown on its product page: shaft diameter 20 mm, housing diameter 47 mm and height 7.00 mm. The Lx design corresponds to an oil seal with a sealing lip and an outer dust lip, mounted on a metal ring with an elastomer coating. The main lip runs on the shaft and the secondary lip protects the sealing area from particles and splashes. It is a common configuration in equipment operating in environments with moderate dust or humidity.

Typical applications for an oil seal of this size include gearboxes, centrifugal pumps, electric motors, speed reducers and machine tool transmission shafts. It also appears in equipment in the food, chemical and process industries, where the goal is to contain lubricant and prevent contaminants from entering. As it is a wear component, it should be checked every time the equipment is disassembled and replaced if it shows loss of elasticity, cuts or hardening of the lip.

To correctly select an oil seal, you must verify the shaft diameter, the housing diameter and the height, as well as the type of lubricant, the operating temperature and the shaft speed. Installation requires thoroughly cleaning the shaft and housing, lubricating the lip with the same oil or grease used in the equipment and avoiding hitting it during fitting. If the shaft shows wear or grooves, it may be necessary to use a repair sleeve or change the oil seal for one with the lip in a different position.

If you need a nearby size or an equivalent from another brand, send us the part number 5420 or the dimensions 20 x 47 x 7 mm by WhatsApp. At MR Accesorios Industriales we can look for alternatives within the seals and oil seals line, always confirming against the manufacturer's product page. We can also advise you if the housing or shaft have tolerances outside the usual range, so that the oil seal is neither loose nor too tight.

MR Accesorios Industriales carries the DBH brand as part of its seals and oil seals line. If this item is not exactly the one you are looking for, write to us by WhatsApp with the part number or the dimensions and we will help you find the right option. We have more than 80 years of experience in the industry and can guide you on the installation and selection of the oil seal for your equipment.