DBH 8218Pol radial shaft seal — 57 x 77 x 10

DBH 8218Pol belongs to radial shaft seal, part of our Seals range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 8218Pol and any equivalents.

The DBH 8218Pol is a radial shaft seal sized for a 57 mm shaft, a 77 mm housing bore and a 10 mm width, built to the Lx-RAH configuration. It keeps lubricant where it belongs and blocks dust, water and particles from reaching the bearing cavity in rotating equipment. You will find this profile in gearboxes, pumps, motors and transmissions, where the flexible lip rides against the shaft and holds the seal through continuous rotation. MR supplies this brand and can help you confirm the size before you order.

The designation 8218Pol identifies this seal, and the three dimensions you need to match are shaft 57 mm, housing 77 mm and width 10 mm. The Lx-RAH design uses a sealing lip with a metal case, so it presses into a cylindrical bore. As a replacement, it is a direct swap: use another seal with the same designation, or an equivalent that keeps those three dimensions and the same lip style.

Seals in this size range show up in gearboxes, centrifugal pumps, electric motors, rollers and power transmission assemblies. In every case the job is the same: hold oil or grease in and keep contaminants out. Machine tools and process equipment with continuously rotating shafts also rely on this barrier.

Before mounting, confirm that shaft diameter, housing bore and width all match the values above. The shaft surface should be clean and free of burrs or deep marks, and the housing entry chamfer should be intact. Lubricate the lip before you slide it on, and avoid impact during installation. If the shaft is worn, consider a repair sleeve.

Need an equivalent or a different size? Send the original code, the shaft and housing dimensions, and a photo of the part. With that we can locate the best fit for your equipment and advise on design or material options based on the fluid and operating temperature. The goal is to keep your machine running instead of waiting on a seal you cannot source.

MR carries the DBH brand. If you already have code 8218Pol or the 57 x 77 x 10 mm size, send the details on WhatsApp and we will prepare your quote. We also handle equivalence questions and special applications.