DBH 1281 radial shaft seal — 58 x 103 x 12/20

DBH 1281 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 1281 and any equivalents.

When lubricant starts weeping past a shaft and grit starts working its way in, the DBH 1281 radial shaft seal is the part that closes that gap. It seats on a 58 mm shaft inside a 103 mm bore, and its height runs from 12 to 20 mm depending on the A 308 design. Pumps, motors, reducers and gearboxes all rely on seals like this one to hold grease or oil in place and keep bearings running.

Reading the designation is the fastest way to confirm a match. The 1281 code fixes the size inside the DBH line, while A 308 describes the construction: a metal case with a sealing lip, built for rotating shafts. The three figures to check against the old part are shaft 58 mm, housing 103 mm and height 12 to 20 mm. Pull the worn seal first and measure the bore and shaft before ordering.

You will find this seal in centrifugal pumps, electric motors, speed reducers, gearboxes and other power transmission equipment. Its job is the same everywhere: hold the lubricant on the inside, block dust, water and particles on the outside. Agricultural and industrial machinery working in dirty conditions benefits most, because contamination is what shortens bearing life.

Selection comes down to three measurements plus the condition of the mating surfaces. The shaft should be smooth and free of grooves; a scored shaft will chew through a new lip. The bore needs a finish that grips the case firmly. Before pressing the seal in, coat the lip with lubricant and face it toward the fluid you want to keep in. Where the shaft is already worn, an auxiliary lip is worth considering.

If the original number is hard to find, send the 1281 code together with your shaft and bore measurements. The team compares it against other brands and series and comes back with a suitable option. There is also room to discuss a different height or lip style when the mounting space permits.

Quotes are handled by WhatsApp or email at MR Industrial Accessories. Send the code and the dimensions, and the reply comes back with the technical details needed to get the repair moving.