DBH 8801 radial shaft seal — 28 x 40 x 10.5

DBH 8801 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 8801 and any equivalents.

The DBH 8801 is a radial shaft seal built to hold lubricant in place and keep dust and water out of equipment with a turning shaft. Its three key measurements are shaft 28.00 mm, housing 40.00 mm and height 10.50 mm, and it comes in the Lx design. The seal presses into the housing bore while its lip rides on the shaft. Motors, pumps and gearboxes all rely on this kind of wear part, and matching its geometry to the application is what protects the bearing and keeps the machine running.

Reading the 8801 code starts with the three dimensions: 28.00 mm for the shaft, 40.00 mm for the housing bore and 10.50 mm for the height. The Lx designation describes how the lip and the metal case are put together, which in turn sets how the seal sits in the bore and how the lip contacts the shaft. Before you order, put these figures next to the old seal or the equipment drawing. Even a few tenths of a millimeter of difference in height or outer diameter can mean the part will not seat correctly.

You will find this seal in rotating assemblies where oil or grease has to stay inside and contamination has to stay outside: gearboxes, centrifugal pumps, electric motors, reducers, transmission shafts and agricultural or process machinery. In each of these, the seal works alongside a bearing or bushing, and when it starts to fail you typically see oil loss, dirt getting in or unusual noise. That is why it makes sense to swap it out during every scheduled teardown, even when the old seal still looks serviceable.

Installation is straightforward if you prepare the surfaces first. Clean the housing bore and the shaft, confirm there are no burrs or wear marks on the sealing track, and coat the lip with the same grease or oil the equipment uses. Press the seal in square to the shaft, without striking the lip or distorting the metal case. If the shaft has a shoulder or keyway, cover it with a protector or tape so the lip does not get cut as it slides on. Misalignment during installation is the most frequent reason a new seal leaks early.

When the shaft itself is worn, an equivalent from another brand may be the answer. To review options, we need the complete part number, the shaft, housing and height dimensions, the design type, and a photo or sample of the original seal. With that information we check alternatives in the DBH line and in other brands we carry, then confirm which one fits without any machining of the housing.

MR Industrial Accessories supplies the DBH brand within its range of seals and oil seals, alongside bearings, housings, power transmission components and lubricants. If you already have the 8801 number or the measurements, send them over by WhatsApp or email and our team will get a quote back to you promptly. We can also help identify the right seal if all you have is the shaft measurement or a sample of the old one.