DBH 8122 radial shaft seal — 145 x 170 x 15/20

DBH 8122 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 8122 and any equivalents.

For rotating shafts that measure 145 mm in diameter, the DBH 8122 lip seal fits a 170 mm housing bore and stands 15/20 mm tall, so it suits assemblies where the seal must hold lubricant in and keep dust, water and particles out. Gearboxes, pumps, electric motors and similar industrial equipment are typical homes for this seal, where bearings and gears depend on a closure that keeps working.

The part number is 8122, and the seal comes from the DBH brand. Read the size as shaft 145 mm, housing 170 mm, height 15/20 mm. Its A 203 design uses a single lip with a spring, which fits lubricated service at moderate speeds. Nitrile rubber (NBR) is the standard material, though the manufacturer's data sheet may list something different, so we verify the specification before quoting.

You will find seals like this one in gearboxes and reducers, centrifugal pumps, electric motors and power transmission equipment. In each case the seal keeps contamination away from the bearings and internal parts, and it stops oil or grease from escaping. Agricultural machinery, mining equipment, treatment plants and pumping systems often run this seal on shafts turning at medium speeds under conditions that call for dependable sealing.

Correct installation starts with the shaft: check hardness and surface roughness, and make sure there are no burrs or marks that could cut the lip. Coat the lip with the same oil or grease the equipment uses before you press the seal in. When choosing a replacement, look beyond the dimensions and consider the fluid, the working temperature and the peripheral speed. We can search for an equivalent that covers the same requirements.

Send part number 8122, or simply the shaft and housing dimensions, by WhatsApp or email, and we will quote the DBH 8122 seal or suggest a comparable option for your application. The team can also help you confirm the right choice, so include the equipment details when you write.