Radial shaft seal DBH 8438 — 22.00 x 40.00 x 13.00

DBH 8438 is a radial shaft seal reference, within Seals. Request a quote for 8438 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 8438 radial shaft seal is a lip seal designed for rotating shafts. Its dimensions are 22 mm shaft diameter, 40 mm housing bore and 13 mm height. It is used to retain lubricant and block the entry of dust, water or particles in gearboxes, pumps and motors. MR Accesorios Industriales supplies this official brand and advises you so you choose the right seal for your equipment.

This item is a radial shaft seal from the DBH line, identified by part number 8438. Its dimensions are 22 mm shaft diameter (d), 40 mm housing bore (D) and 13.00 mm height (h). The A 320 design corresponds to a seal with a sealing lip and metal case, suitable for rotating shafts with lubrication. These are the dimensions you have to verify before ordering: the shaft, the housing bore and the housing depth must match those values so the seal seats properly and is not damaged during installation.

Radial shaft seals such as the DBH 8438 are used in equipment where a shaft rotates inside a housing and oil or grease leaks must be prevented, while at the same time keeping dirt out. Typical appearances: gearboxes, centrifugal pumps, electric motors, reducers, compressors, transmission shafts and machine tools. Also in applications exposed to dust or water, provided the seal is correctly installed and the shaft has the right hardness and surface finish.

To select and install a seal, several things must be taken into account. First, that the shaft, housing bore and height dimensions match those of the seal. Second, the condition of the shaft: it must have no burrs, scratches or wear in the lip contact area. Third, lubrication: the lip must run lubricated, and a layer of clean grease or oil should be applied before installation. Fourth, the operating speed and temperature, which must be within the limits of the lip material. If the seal is installed crooked or hammered, it will fail even if it is good quality.

If you need a seal equivalent to the DBH 8438, or a nearby size because the housing bore or the shaft has another dimension, send us the data. The most useful thing is for you to send us the full part number, the dimensions you have (shaft diameter, housing bore and height) and a photo or description of the equipment where it is installed. With that we can look for an alternative within the same brand or another line we supply, always respecting the dimensions and the design type. We do not invent dimensions: if it does not match, we tell you.

To request a quote for the DBH 8438 seal or ask about a similar size, write to us on WhatsApp. Send us part number 8438 and the dimensions of your equipment. At MR Accesorios Industriales we handle technical inquiries and help you find the seal you need, with the experience of more than 80 years in the industry. You can also ask about other seals, oil seals and transmission components we supply.