DBH 9178Pol radial shaft seal — 155 x 180 x 15

DBH 9178Pol 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 9178Pol and any equivalents.

A radial shaft seal from the DBH line, the 9178Pol keeps lubricant inside the housing and blocks dust, water and particles from reaching the bearings. It fits a 155 mm shaft, a 180 mm housing bore and a 15 mm height, so it suits larger rotating equipment. We supply it through our seals and oil seals catalog.

The code 9178Pol identifies this seal within the DBH range. Reading the size is straightforward: shaft 155 mm, housing bore 180 mm, height 15.00 mm. Its Mx-R-AH configuration means a sealing lip combined with a radial mounting arrangement for a machined housing. A spring-loaded elastomer lip rides against the rotating shaft to hold the seal.

Typical locations are gearboxes, pumps, electric motors, rollers and transmission units, where a shaft turns inside a stationary housing. In continuous process lines the seal shields the bearings and keeps oil or grease from escaping. Where dust or splashing is moderate, the auxiliary lip helps limit contamination.

Before ordering, confirm that the shaft and bore match the values above and that the 15.00 mm height clears the cavity. The shaft surface should be ground, free of burrs and marks, and with a roughness that will not harm the lip. Apply lubricant before installation, press the seal in squarely to the shaft and avoid uneven impact. For high speed or high temperature service, check material compatibility.

To get a quote for 9178Pol, send the shaft, housing and height measurements. A photo of the worn seal or a cavity drawing works as well. We review the DBH line against that information so the replacement fits without modification. Should the Mx-R-AH design not be the right one, we can point you to a suitable variant.