Radial shaft seal DBH 9957 — 16.00 x 25.00 x 5.50/8.50

DBH 9957 is a radial shaft seal reference, within Seals. Request a quote for 9957 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 9957 radial shaft seal is a lip seal designed to retain lubricant and exclude contaminants on rotating shafts. With dimensions of 16 mm shaft diameter, 25 mm housing diameter and a height of 5.50/8.50 mm, it fits gearboxes, pumps and electric motors. Its A 356 design ensures efficient sealing under demanding operating conditions. MR Accesorios Industriales carries this brand so you can solve your applications with technical support.

This DBH 9957 oil seal has a shaft diameter of 16 mm, a housing diameter of 25 mm and a height of 5.50/8.50 mm. The A 356 design corresponds to a single-lip seal with spring, intended for rotating shafts where oil or grease must be contained and dust or water kept out. Its typical construction combines a resistant elastomer with a metal reinforcement that gives it rigidity and ensures a firm fit in the housing. It is a key part for maintaining lubrication and extending the service life of bearings and bushings.

The most common applications of this oil seal include gearboxes, centrifugal pumps, electric motors, compressors and power transmission equipment. In all these cases, the 9957 seal acts as a dynamic barrier: it retains the lubricant inside the assembly and blocks the entry of external particles that could accelerate wear. It is also used in agricultural and industrial machinery where 16 mm shafts are common. As a wear component, it should be replaced when leaks or abnormal noises appear.

To install this oil seal correctly, 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 evenly until it seats fully at the bottom of the housing. Avoid hitting the lip with metal tools. When selecting a seal, take into account the rotation speed, working temperature and the type of fluid to be retained. If the shaft shows wear, consider using a seal with an auxiliary lip or a repair sleeve.

If you need a seal equivalent to the DBH 9957 or a nearby size, the most practical thing is to send us the full part number, the shaft, housing and height dimensions, and a photo of the part. With that data we can look for alternatives in other brands or series that fulfill the same function. We can also advise you if the mounting space is limited or if the operating conditions are severe. At MR Accesorios Industriales we work with official brands and in-house manufacturing to give you a reliable solution.

To request a quote for this DBH 9957 oil seal or ask about other sizes, send us the part number on WhatsApp. We will reply with the alternatives that best fit your equipment. With more than 80 years in the industrial market, at MR Accesorios Industriales we know that every application has its particularities, which is why we support you in selecting the right seal.