DBH 5272 radial shaft seal — 25.5 x 40 x 7

DBH 5272 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 5272 and any equivalents.

The DBH 5272 is a radial shaft seal built to keep oil or grease where it belongs and to shut out dust and water along rotating shafts. MR Industrial Accessories supplies this brand and helps you match the right seal to the job. With a 25.50 mm shaft, a 40.00 mm housing bore and a 7.00 mm height, it fits gearboxes, pumps, electric motors and transmission equipment.

This seal uses the Lx design: a single sealing lip with a spring, held in a metal case. The 5272 designation sets the exact size inside the DBH line, so the three measurements matter — shaft 25.50 mm, housing 40.00 mm, height 7.00 mm. Measure the shaft and bore with a caliper before you order, because a seal that is slightly off will not seat or seal correctly.

You will find this size in gearboxes, centrifugal pumps, electric motors, conveyor rollers and power transmission assemblies. In every case the lip rides on a rotating shaft and holds lubricant inside the housing while blocking contaminants from reaching bearings and bushings. On equipment that runs with heavy vibration or elevated temperature, inspect the shaft surface before you replace the seal.

Installation is straightforward but unforgiving. Clean the bore and shaft, remove burrs and any wear ridges, then lubricate the lip before pressing the seal in. It has to enter square to the shaft — striking the metal case can distort it. If the shaft shows a groove, a repair bushing is worth considering. Speed, temperature and lubricant type all influence whether the Lx design is the right choice.

To get a quote on code 5272, send the shaft, housing and height dimensions. A photo of the old seal or the assembly drawing works just as well. From there we can check alternatives in the DBH line or from other brands we carry. The code does not have to match exactly; a standard size often covers the replacement.

Message us on WhatsApp with the part number or the measurements and we will quote the DBH 5272 seal and review alternatives. If mounting or compatibility is unclear, our team can point you to the right option so the equipment goes back into service without leaks.