DBH 8508Pol radial shaft seal — 50 x 72 x 12

DBH 8508Pol 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 8508Pol and any equivalents.

A radial shaft seal such as the DBH 8508Pol sits between a turning shaft and its housing, holding lubricant in and keeping contaminants out. Its published dimensions are a 50 mm shaft, a 72 mm housing bore and a 12.00 mm height, with the designation 8508Pol and the Lx-R-H design. MR Industrial Accessories supplies this brand within its seals and oil seals line.

The Lx-R-H design tells you what you are holding: a sealing lip, a reinforced body and a retaining spring. The three published figures to check before ordering are shaft diameter (d) 50 mm, housing diameter (D) 72 mm and height (h) 12.00 mm. This is a standard replacement item in the radial shaft seal category, made for rotating shafts where oil or grease has to stay contained.

You will run into seals of this size in gearboxes, speed reducers, centrifugal pumps, electric motors, conveyor rollers and belt or chain drive equipment. In each of those spots the seal does two jobs at once: it keeps lubricant from escaping and it blocks dust, water or chips from reaching the bearing or the gears. Treat it as a wear part and look at it during every maintenance service.

Installation is where most seals are lost. Confirm that the shaft and bore match the published values, check the shaft for burrs or marks, and set the lip facing the lubricant side. Lubricate the lip before you press it in, drive it with a tube or socket of the right diameter so it does not deform, and apply force only to the outer ring. A damaged bore or a shaft with play will leak even with a new seal in place.

Looking for an equivalent? Send the part number 8508Pol together with your shaft, housing and height measurements, and a photo of the old seal if you have one. With that information we can search the same DBH line or another brand we carry, while keeping the mounting dimensions the same. We can also tell you whether the Lx-R-H design is the right one for your equipment.

MR Industrial Accessories works with the industrial sector and carries DBH as a brand. For your maintenance job, send the part number 8508Pol by WhatsApp and we will prepare the quote. If the size is in doubt, write to us anyway: with the equipment data or the original seal we can confirm whether the 8508Pol fits or find the size you need.