DBH 9781 radial shaft seal — 12 x 24 x 5

DBH 9781 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 9781 and any equivalents.

Sealing a rotating shaft comes down to matching three measurements, and the DBH 9781 covers a small one: 12 mm at the shaft, 24 mm at the housing and 5.00 mm of height. This radial shaft seal carries an Lx design, meaning one lip with a spring, and it works by holding lubricant in and keeping dust, water and particles out. You will find it in pumps, electric motors, gear reducer boxes and power transmission equipment. MR supplies it within its seals and oil seals line.

How the part works: the elastomeric lip rides against the rotating shaft while the spring keeps steady contact pressure as the lip wears. The outer metal case presses into the housing bore for a firm seat. Shaft diameter: 12 mm. Housing diameter: 24 mm. Height: 5.00 mm. That combination makes it a routine replacement item wherever oil or grease has to stay inside the assembly and leaks have to be stopped.

Where it fits: small centrifugal pumps, low-power electric motors, gear reducers, compressors, fans and machine tools. It also shows up in power transmission equipment and in linear motion mechanisms that need a sealed shaft passage. Because the 5.00 mm height keeps the footprint narrow, this seal suits tight axial spaces, moderate shaft speeds, laboratory equipment, instrumentation and precision machinery.

Selection and installation: confirm that both the shaft and housing diameters match the values above, and check that the 5.00 mm height seats in the cavity without being forced. Lubricate the lip with the same oil or grease the equipment runs on, and inspect the shaft for burrs or marks that could cut the lip. The Lx design absorbs slight misalignment, though shaft and housing should still line up. In very dirty conditions, add a protective seal or a second lip.

Ordering: send the 9781 code, or just the shaft, housing and height dimensions, and our team reviews options in the same series or with similar characteristics so the seal drops in without modifying the equipment. A photo of the part or the assembly drawing also helps. Quotes go out by WhatsApp or email, and we can suggest equivalents and assist with selection. MR Industrial Accessories serves customers throughout the United States and in several Latin American countries.