DBH 5859 radial shaft seal — 27 x 43.79 x 9.12

DBH 5859 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 5859 and any equivalents.

The DBH 5859 is a radial shaft seal built to keep lubricant in and contaminants out where a shaft turns inside a housing. Its Lz configuration pairs a sealing lip with a spring, so contact on the shaft stays even. Shaft 27 mm, housing 43.79 mm, height 9.12 mm: those three values are what you match to the bore and shaft of your equipment before ordering.

Reading the code is straightforward. DBH identifies the seal line, 5859 is the size reference, and Lz describes the lip-and-spring arrangement. That arrangement suits rotating shafts that need oil or grease held inside while dust and dirt stay outside. The elastomer and lip geometry are chosen for general industrial duty, which is why this series turns up across so many different machines.

Typical installations include gearboxes, pumps, electric motors, compressors and transmission equipment, plus machine tools, conveyors and hydraulic systems. Anywhere a shaft rotates through a housing and the lubricant has to stay separated from the surroundings, a seal of this type does the job. Because the section is compact, it fits covers and housings on equipment running 27 mm shaft bearings, sealing against the shaft or the inner ring.

Selection comes down to three checks: shaft diameter, housing bore and height must all agree with the DBH 5859. The Lz lip needs a ground, lubricated surface to run on, so inspect the shaft raceway for scratches or wear before fitting. Press the seal in with a tool or press that pushes evenly on the outer diameter, and never strike the lip. If the shaft shows play or runs eccentric, a more flexible lip may be the better answer, and our team can review that with you.

Need a cross-reference? Send the code 5859 or the dimensions 27 x 43.79 x 9.12 mm and we will quote the DBH seal along with alternatives from other brands that share the same envelope. We can also talk through material and series options while staying within the tolerances your equipment calls for.

Quotes are handled by WhatsApp or email at MR Industrial Accessories. Send the part number, the dimensions, or both, and the team will come back promptly with what fits.