Radial shaft seal DBH 8252 — 20.00 x 42.00 x 7.00

DBH 8252 is a radial shaft seal reference, within Seals. Request a quote for 8252 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 8252 radial shaft seal is a lip seal that closes off the passage of oil, grease or water between a rotating shaft and its housing. With 20 mm shaft diameter, 42 mm housing diameter and 7 mm height, and Lx design, it is used in gearboxes, pumps, electric motors and power transmission equipment to retain lubricant and stop the entry of dust and dirt. MR Accesorios Industriales carries it as part of its seals line.

The DBH 8252 is a radial lip seal with the dimensions shown in its designation: 20 mm shaft diameter (d), 42 mm housing diameter (D) and 7 mm height (h). The Lx design corresponds to the construction configuration of the seal, with a sealing lip and metal body that fits into the housing under pressure. These three dimensions are the ones you must verify before replacing a seal: the shaft, the bore it fits into and the available width.

Radial shaft seals of this size are found in equipment where a shaft rotates inside a lubricated housing. They appear in gearboxes, centrifugal pumps, electric motors, reducers, compressors and machine tools. They are also used in applications exposed to dust or water, where in addition to retaining oil the seal prevents the entry of particles that wear bearings and gears.

To select a seal, the dimension alone is not enough: shaft speed, operating temperature, type of lubricant and the pressure the seal is subjected to all matter. The Lx design defines how the lip bears on the shaft and what type of spring or reinforcement it has. If the shaft shows wear or a marked groove, it is advisable to evaluate a seal with the lip in a different position or to repair the surface before installation.

During installation, lubricate the lip with the same oil or grease used in the equipment, check that the shaft has no burrs or splines and fit the seal perpendicular to the shaft, without striking it from the side. If you cannot find code 8252 or need a nearby size, send us the shaft diameter, housing diameter and height, plus a photo of the old seal or the equipment code. With that data we look for the equivalent in DBH or another brand we carry.

MR Accesorios Industriales carries the DBH brand within its seals and oil seals line. If you want to request a quote for the 8252 oil seal or ask about an equivalent size, send the code on WhatsApp along with your equipment dimensions and we will reply with the option that best fits.