DBH 1248 radial shaft seal — 50 x 72.5 x 11/16

DBH 1248 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 1248 and any equivalents.

The DBH 1248 is a radial shaft seal built to keep oil and grease inside rotating equipment while keeping dust and water out. It runs on a 50 mm shaft and seats in a 72.5 mm housing bore, with a height of 11 to 16 mm depending on the A 053 design. Gearboxes, pumps and motors rely on this kind of lip seal to protect bearings and avoid unplanned downtime.

Reading the designation is straightforward: shaft 50 mm, housing 72.5 mm, height 11 to 16 mm per the A 053 design. The lip works against the rotating shaft and holds tightness in both directions. A typical unit combines an outer metal ring, an oil-resistant elastomer and a spring that keeps pressure on the lip. This makes it a routine replacement item wherever lubricant is present and outside contamination has to be blocked.

Typical installations include gearboxes, centrifugal pumps, electric motors, drive shafts and process equipment, as well as agricultural machinery, conveyors and hydraulic systems with continuous rotation and oil or grease present. In each case the seal keeps lubricant from escaping and stops dust or water from reaching bearings and gears. Treat it as a wear part: replace it when leaks appear or when abnormal noises are heard.

For selection, confirm that the shaft and housing match the equipment. The 11/16 mm height means the A 053 design can fit housings of different depths, provided the lip rests correctly on the shaft. During assembly, lubricate the lip with the same oil used in the equipment, avoid impacts, and check that the shaft has no burrs or wear. If the shaft shows a marked track, consider replacing it or positioning the lip on a different area.

If you need an equivalent, send the complete part number, the shaft, housing and height dimensions, and a photo of the part. With that information the team can search for the alternative that best fits your equipment, and can also advise on lip design and elastomer material according to the fluid and working temperature. Quotes are requested by part number through WhatsApp or email, and the team replies promptly and can suggest equivalents and help you choose.