DBH 8225 radial shaft seal — 105 x 130 x 18

DBH 8225 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 8225 and any equivalents.

The DBH 8225 is a radial shaft seal built to sit in a fixed housing while the shaft turns through it. Its job is to hold oil or grease on the inside of the assembly and to keep dust, water and particles out, so bearings and bushings are not exposed to premature wear. The seal is pressed into the bore and its lip rides on the shaft, which has to be ground and lubricated. Pumps, gearboxes and power transmission equipment are the usual places this size shows up as a replacement item.

Reading the code: 8225 identifies the item within the DBH line. The three figures that matter for fit are shaft diameter d = 105 mm, housing diameter D = 130 mm and overall height h = 18.00 mm. The profile is listed as A 123, a single lip with a spring that keeps steady contact against the shaft. MR supplies DBH, so the part can be ordered under that designation with its standard dimensions.

Where a seal this size is used: centrifugal pumps, gearboxes, mixers, conveyors and process equipment with a rotating shaft inside a stationary housing. In those assemblies the seal is the barrier between the lubricant and the surrounding environment, and it also helps bearings reach their expected service life. Large electric motors and machine tools that need continuous lubricant containment are other common applications.

Selection and installation notes: confirm that shaft, housing and height match the seal being replaced. The shaft surface should be free of burrs and have the hardness and roughness the lip needs to seal without being damaged. Lubricate the lip with the same oil the equipment runs on, seat the seal squarely and apply force only to the outer ring. A worn shaft may call for a repair sleeve or a different size.

Have the old seal's shaft diameter, housing diameter and height on hand. Those three values are enough for us to search for an equivalent in the DBH line or in another brand we supply. We can also tell you whether A 123 is the right lip profile for your equipment or whether another one fits better.

For a quote on the DBH 8225, message us on WhatsApp with the code 8225 or with 105 x 130 x 18 mm. We handle technical and replacement inquiries. If you need several units or an equivalent, say so in the message and we will get back to you.