DBH 8151 radial shaft seal — 24 x 37 x 5

DBH 8151 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 8151 and any equivalents.

A lip seal such as the DBH 8151 keeps lubricant where it belongs and keeps contaminants out. It sits on a rotating shaft and presses against the housing bore, sealing the point where the shaft passes through. The designation 8151 corresponds to a seal built to the A 012 design, sized for a 24 mm shaft, a 37 mm housing bore and a 5.00 mm height.

Reading the size is straightforward: shaft 24 mm, housing 37 mm, width 5.00 mm. The metal case and elastomer lip work together, with the lip riding on the shaft surface while the case holds the seal firmly in the bore. In maintenance work this is the seal you reach for when oil or grease has to stay inside a gearbox, pump, motor, reducer, mixer or machine tool, and dust, water and particles have to stay outside.

The same seal also shows up on rollers, conveyors and power transmission equipment. In every one of those spots it does two jobs at once: it holds the lubricant in and it shields bearings and bushings from whatever is circulating in the plant air. A seal that stops doing either job usually shows up as a leak, a stained housing or a bearing that runs hot and fails early.

Before fitting a replacement, measure the shaft and the housing bore and confirm they match 24 mm and 37 mm, and check that the 5.00 mm width fits the cavity depth. Lubricate the lip and face it toward the fluid being retained. Inspect the shaft for burrs, splines or a worn sealing track, since any of these will damage the lip quickly. A shaft with visible wear marks may call for a wear sleeve instead of a plain replacement.

If the size you need is different, or you want an alternative design that does the same job, send code 8151 together with your shaft, housing and height measurements, plus a photo or the old seal itself. That lets us look at another height in the same category or a different lip design. The more detail you provide, the quicker we can confirm the correct option and get a quote back to you.

MR supplies the DBH brand and serves maintenance and purchasing teams across the United States and in several Latin American countries. For a repair or a scheduled maintenance job, message us on WhatsApp with code 8151. We can also walk you through installation, lip lubrication and checking the housing so the seal performs as expected.