DBH 1174 radial shaft seal

DBH 1174 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 1174 and any equivalents.

When a rotating shaft passes through a housing, the DBH 1174 radial shaft seal keeps lubricant in and contaminants out. This lip seal, identified as part number 1174 with A 378 design, fits a 28.00 mm housing bore and has a 7.00 mm overall height. It is a common choice for gearboxes, pumps, electric motors and other power transmission equipment where oil, grease or water must be contained at the shaft exit.

The A 378 design uses a metal outer case with an elastomeric sealing lip. That construction suits rotating shafts that run with lubrication, and it allows the seal to be pressed into a machined bore. The 1174 number points to this specific size and style within the DBH line of radial shaft seals.

You will find seals of this size in low and medium power assemblies: gear reducers, centrifugal pumps, electric motors, rollers and line shafts. They also appear in machine tools and process equipment where an oil bath needs to be separated from dust or water. In every case the seal runs against a rotating shaft and sits in a housing bore, so its working life depends on both the shaft surface and how clean the assembly is.

Before installing a radial shaft seal, confirm three dimensions: shaft diameter, housing bore and height. The lip must ride on a smooth, burr-free surface without splines or sharp edges. Clean the housing and remove any nicks that could cut the case. Lubricate the lip, then press the seal in with a tube or sleeve that applies even pressure; never strike it directly with a hammer. If the shaft is worn or scratched, a new seal alone will not stop the leak—evaluate a repair sleeve instead.

For an equivalent to the 1174, send the full part number plus the measurements you take from the shaft, housing and height. With that information we can locate a matching seal in the same category or suggest a seal-and-sleeve combination that addresses the installation. A photo of the old seal and the housing is also useful, especially if the seal came out distorted or the shaft shows marks.

MR Industrial Accessories supplies the DBH brand as part of its seals and radial shaft seal range. To move forward with this item, send part number 1174 by WhatsApp or email and we will reply with a quote for the confirmed size. If the seal belongs to a larger assembly, ask about bearings, bushings or lubricants for the same equipment so we can prepare a complete order.