Radial shaft seal DBH 8398 — 55.00 x 72.00 x 7.50

DBH 8398 is a radial shaft seal reference, within Seals. Request a quote for 8398 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 8398 radial shaft seal is a lip seal that mounts in the housing and seals against the rotating shaft to retain lubricant and block the entry of dust, water or particles. Thanks to its dimensions —55 mm shaft, 72 mm housing and 7.50 mm height— it is used in gearboxes, pumps, electric motors and power transmission equipment working with medium-section shafts. MR Accesorios Industriales carries this brand and helps you confirm the size before requesting a quote.

This item is a DBH 8398 radial shaft seal, with the dimensions shown in its designation: 55.00 mm shaft diameter, 72.00 mm housing diameter and 7.50 mm height. The Lx design indicates a single lip configuration with spring, intended for rotating shafts with continuous lubrication. The sealing lip bears on the shaft and the outer diameter fits into the housing; that combination is what defines the sealing performance. If your equipment calls for this size, code 8398 is the starting point for your inquiry.

Typical applications for a seal of this size appear in gearboxes, centrifugal pumps, electric motors, rollers and power transmission equipment. In all those cases the seal serves two functions: preventing oil or grease from escaping the assembly and stopping contaminants from entering from the environment. When the seal wears, a loss of lubricant or a friction noise usually appears, which should be addressed before it affects nearby bearings or gears.

To install a radial shaft seal, check the condition of the shaft: free of burrs, without deep marks and with the proper roughness in the contact area. The housing must be clean and free of deformation. When fitting it, lubricate the lip and use a flat driver that bears on the outer diameter, never on the lip. If the previous seal failed, also check the housing ventilation and shaft alignment: many repeated failures come from there and not from the seal itself.

If you can't find code 8398 or need a nearby size, send us the dimensions of the old seal —shaft diameter, housing diameter and height— or a photo of the part with the stamped number. With that data we look for the equivalent within the DBH line or other brands we carry. We can also advise you if the Lx design is not the right one for your application and a different lip type or material is needed.

MR Accesorios Industriales carries the DBH brand and has more than 80 years of experience in bearings, power transmission and seals. If you want a quote for the DBH 8398 seal, write to us on WhatsApp with the code and the quantity you need. We'll send you the quote with no obligation.