DBH 5857 radial shaft seal — 31.75 x 42.82 x 9.52

DBH 5857 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 5857 and any equivalents.

A radial shaft seal from the DBH line, the 5857 keeps lubricant where it belongs and keeps dust, water and other contaminants out of the assembly. It fits rotating shaft positions in gearboxes, pumps, electric motors and other power transmission equipment. The published dimensions are a 31.75 mm shaft, a 42.82 mm housing bore and a 9.52 mm height, in the Lz design. MR Industrial Accessories supplies this seal as part of its seals and oil seals range for industrial maintenance work.

The reference breaks down simply: DBH identifies the seal family, 5857 is the part number, and the three figures describe where it sits. Shaft 31.75 mm, housing 42.82 mm, width 9.52 mm. The Lz designation points to a sealing lip built with a spring, a construction that keeps the lip flexible against the shaft. The elastomer lip does the sealing on the rotating surface while the metal case holds the seal firmly in the housing bore. It is a standard replacement item in the radial shaft seal category, so it is normally ordered by part number or by dimensions.

Seals like the 5857 show up wherever a shaft turns and lubricant has to stay contained. Gearboxes, centrifugal pumps, electric motors, conveyor rollers and machine tools are common locations, and the same applies to agricultural implements and road equipment. Choosing the right seal comes down to three things: the shaft diameter, the housing bore and the operating conditions, meaning temperature, peripheral speed and the lubricant in use. Whatever the application, the lip has to stay lubricated and run against a ground shaft surface.

Installation is where most seal failures start. Check the shaft for burrs, scratches or a worn track, and make sure the housing is clean and not deformed. Drive the seal in with a tube or spacer that presses on the metal outer edge, never on the lip itself. Lubricate the lip with the same oil or grease used in the equipment before fitting it. If the shaft shows wear at the sealing position, an offset lip seal is worth considering. Keeping the shaft and housing properly aligned helps prevent leaks and gives the seal a longer working life.

If you are looking for a seal that matches the 5857, send the part number together with the dimensions from the nameplate or drawing. We can also help when the housing tolerance is different or the shaft is worn. MR Industrial Accessories supplies the DBH brand and carries alternatives within its seals line. The more detail you provide, such as shaft diameter, housing bore, height and lubricant type, the more accurate the recommendation will be.

To get a quote on the DBH 5857 oil seal, message us on WhatsApp or by email with the part number. Our team replies promptly and can suggest equivalents or help you confirm the right choice for your equipment. MR Industrial Accessories serves customers throughout the United States and in several Latin American countries.