DBH 8428Sil radial shaft seal — 120.5 x 152.4 x 15.8

DBH 8428Sil 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 8428Sil and any equivalents.

A radial shaft seal such as the DBH 8428Sil keeps lubricant where it belongs and keeps dust, water and particles out of a rotating assembly. Its three key measurements are shaft 120.50 mm, housing 152.40 mm and height 15.80 mm, which puts it in the range of medium and large industrial equipment. The seal presses into the housing bore, while a flexible lip rides on the shaft and absorbs small amounts of misalignment. Because it is a wear part, it is normally replaced as soon as leakage appears.

The designation to look for is 8428Sil, a DBH radial shaft seal. Dimensions are written in the usual order: shaft 120.50 mm, housing 152.40 mm, height 15.80 mm. The A 124 design describes a metal-bodied seal with a sealing lip, made to be press-fitted into a cylindrical housing. The lip compound is intended for the oils and greases found in everyday industrial service, but the fluid in your specific machine should always be checked against the seal before it goes in.

Seals of this size turn up in gearboxes, centrifugal pumps, large electric motors, conveyor rollers and power transmission equipment. In each case the job is the same: hold the lubricant inside the assembly and block dust, water and particles that would otherwise shorten the life of bearings and gears. Fan shafts and industrial mixers also use this type of seal as a secondary closure.

Three checks matter when selecting a replacement. First, the shaft diameter has to fall within the recommended tolerance. Second, the housing needs the right bore diameter and depth. Third, the lip material has to suit the fluid and the working temperature. At installation, coat the lip with the same oil or grease used in the machine, keep it square to the shaft and avoid knocks that could nick the sealing edge. Misalignment remains the most frequent reason a seal starts leaking early.

If you need a seal from another brand, we can help. Working from the code 8428Sil or from the shaft, housing and height measurements, we search our seal and shaft seal lines for alternatives. We can also advise when the original design is no longer available and a replacement with a different lip geometry or material has to be evaluated. The more you tell us about fluid, temperature and speed, the closer the match will be.

To request a quote for the DBH 8428Sil, send the code 8428Sil by WhatsApp or email to MR Industrial Accessories. You can also ask us to confirm the exact size or to suggest an equivalent seal. Our team helps you verify the right part for your equipment and replies promptly.