DBH 5025 radial shaft seal — 20 x 40 x 6

DBH 5025 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 5025 and any equivalents.

Part number 5025 belongs to the DBH line of radial shaft seals, a lip seal built to hold lubricant in and keep contaminants out where a shaft turns inside a housing. The size callout reads 20 mm for the shaft, 40 mm for the bore and 6.00 mm for the height, and the Lx designation points to a lip-and-spring layout. MR Industrial Accessories LLC includes this seal in its seals and radial shaft seal offering for maintenance and purchasing teams across the United States and Latin America.

Reading the size code is the quickest way to confirm a match. The first figure, 20 mm, is the shaft diameter the lip rides on. The second, 40 mm, is the housing bore the outer ring presses into. The third, 6.00 mm, is the overall height. The Lx design means the sealing lip works together with a spring, so the elastomer lip stays in contact with the rotating shaft while the spring maintains that contact over time.

You will find this seal on centrifugal pumps, electric motors, gearboxes, compressors and other power transmission equipment. In each case its job is the same: keep oil or grease where it belongs and block dust, water and particles from reaching the bearings. Fan shafts, mixer shafts and conveyor shafts are also common homes for a seal of this type, since they run continuously and are expected to need little attention.

Installation quality decides how long the seal lasts. Clean the shaft and the housing bore, and remove any burrs or scratches before starting. Put a light film of the same oil or grease the seal will retain on the lip. Drive the seal in squarely with an installation tube or press that pushes on the outer ring only, never on the lip. Keep shaft and housing eccentricity to a minimum, and if the shaft surface is already worn, a repair sleeve is worth considering.

If your equipment calls for different dimensions or you want a comparable seal from another brand, send part number 5025 or the three measurements — shaft, housing and height — by WhatsApp or email. The team can also quote seals with other lip configurations or materials to suit the application. For a quote, just reference the part number and the response will follow promptly.