DBH 5311 radial shaft seal — 20 x 42 x 10

DBH 5311 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 5311 and any equivalents.

The DBH 5311 is a radial shaft seal that presses into the housing and seals against a rotating shaft. It keeps lubricant in and blocks dust, water and particles from reaching the bearings. The part number corresponds to a 20.00 mm shaft, a 42.00 mm housing bore and a 10.00 mm height, with an Lx design that combines a sealing lip and a metal body.

In a typical assembly, the seal is fitted into the housing while the shaft turns inside it. The lip runs against the shaft surface, creating the barrier that retains oil or grease and excludes contaminants. The metal body holds the lip in place and centers the seal in the bore. This makes the DBH 5311 a standard replacement item in the radial shaft seal category.

You will find seals of these dimensions in gearboxes, reducers, centrifugal pumps, electric motors, compressors and power transmission equipment. They also appear in machine tools, conveyors and process machinery where a shaft rotates inside a housing. In every case, the seal protects the bearings and the lubricant from the surrounding environment and limits leakage losses.

Before installing a DBH 5311, confirm that the shaft, housing and height dimensions match your equipment. The shaft surface should be clean, free of burrs and deep marks, and it is good practice to lubricate the lip before fitting. Insert the seal perpendicular to the shaft with a suitable tool, avoiding impacts that could deform the metal body. If the shaft shows wear, a seal with the lip in a different position can be considered.

When you need an equivalent to the DBH 5311, send the full part number, the shaft, housing and height dimensions, and a photo or sample of the old seal. With that information we can compare the available options and confirm the one that fits your equipment. We can also assist if the original seal has no visible brand or if you need an intermediate size within the same category.

MR Industrial Accessories LLC supplies the DBH brand within its seal and radial shaft seal line. To request a quote for the DBH 5311 or to ask about an equivalent size, contact us by WhatsApp or email with the part number and dimensions. Our team will reply promptly with the corresponding alternative and installation guidance.