DBH 1278Pol radial shaft seal — 42 x 76 x 13.5/19

DBH 1278Pol 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 1278Pol and any equivalents.

When a rotating shaft needs its lubricant kept in and contaminants kept out, a radial shaft seal does the job. The DBH 1278Pol is a single-lip seal in design A 296, sized for a 42 mm shaft and a 76 mm housing bore, with a height range of 13.50/19.00 mm. That variable height lets it sit in housings of more than one depth. MR Industrial Accessories supplies this seal through its seals line, and quotes are handled by part number.

Reading the code and the sizes first saves time on the floor. Shaft 42 mm, housing 76 mm, width 13.50/19.00 mm. The two width figures are not a mistake: the profile covers more than one seating depth, so the same seal can be fitted where the bore is machined either way. Design A 296 describes a seal with a sealing lip and a reinforced body, the standard arrangement for a rotating shaft. The lip rides on the shaft; the outer surface holds in the housing.

Seals of this type turn up in gearboxes, electric motors, centrifugal pumps, conveyor rollers and belt or chain drives. In each case the job is the same: hold oil or grease inside, keep dust, water and particles outside, and protect the bearings and gears behind the seal. Fan shafts, mixers and machine tools also use them where a simple, dependable seal is what the application calls for.

Before mounting, confirm the shaft and bore match the stated diameters, and check that the lip is lubricated and the shaft surface is free of burrs and marks. The 13.50/19.00 mm height range gives some flexibility on bore depth, but the seal still has to seat fully and stay covered. A worn shaft is worth inspecting at the same time; a repair sleeve may be the better route.

If you are matching an existing part, the code alone is often enough. Send the DBH 1278Pol reference, the three dimensions, or a photo, and the team can look at alternatives in the same radial seal category and confirm the sizes. Shaft, housing and height are the details that speed things up.

Quotes are requested by part number on WhatsApp or by email, and the reply comes back with the technical data you need. The same channel handles questions on other seals, oil seals and power transmission parts.