Radial shaft seal DBH 9874 — 50.00 x 74.00 x 10.00/15.00

DBH 9874 is a radial shaft seal reference, within Seals. Request a quote for 9874 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 9874 oil seal is a single-lip radial shaft seal designed for rotating shafts of 50 mm diameter. Its function is to retain lubricant inside the housing and prevent the entry of dust, water or particles that could damage bearings and bushings. It is press-fitted into a 74 mm bore, and its height of 10 to 15 mm allows it to adapt to different housing depths. It is a wear part that should be replaced at every teardown to ensure the sealing of the assembly.

This DBH 9874 oil seal has a shaft diameter of 50 mm, a housing diameter of 74 mm and a height ranging from 10.00 to 15.00 mm. The A 109 design corresponds to a spring-loaded sealing lip, intended for rotating shafts at moderate speeds. The variable height allows the seal to adapt to bores of different depths while keeping the lip in contact with the running surface. It is a rubber or elastomer part with a metal reinforcement, working at ambient or moderate temperature depending on the compound.

Typical applications for this oil seal include gearboxes, centrifugal pumps, electric motors, transmission shafts and continuous-process equipment. In the food, chemical or water treatment industries, it is used to protect bearings and prevent oil or grease leaks. It also appears in machine tools, conveyors and material handling equipment. Whenever a rotating shaft passes through a lubricated housing, this type of seal acts as a barrier.

To select the oil seal correctly, verify that the shaft diameter is within the recommended tolerance and that the contact surface is ground and free of marks. The housing must have an entry chamfer to avoid damaging the lip during installation. The height of 10 to 15 mm lets you choose the position according to the bore depth. If the shaft shows wear, consider a repair sleeve or an alternative size. Pre-lubricating the lip and using a suitable installation tool are key to avoiding premature failure.

If you need an equivalent oil seal or a nearby size, the most practical approach is to send us code 9874 or the current dimensions (shaft diameter, housing and height). With that data we can look for alternatives in other brands or series that MR carries. We can also advise you on the right compound for the fluid and working temperature. You don't need to have the datasheet at hand: the code or a photo of the part is enough to guide the search.

At MR Accesorios Industriales we carry the DBH brand as part of our seals and oil seals line. If this DBH 9874 oil seal is the one you need, send us the code on WhatsApp and we'll send you the quote. If you have doubts about the size or design, ask us and we'll help you identify the correct part for your equipment.