DBH 5666 radial shaft seal — 100 x 115 x 9

DBH 5666 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 5666 and any equivalents.

The DBH 5666 is a radial shaft seal built around a 100 mm shaft, a 115 mm housing bore and a 9 mm height. Its job on rotating equipment is twofold: hold lubricant where it belongs and keep dust, water and other contaminants out of the housing. The Lz design refers to a sealing lip with a spring. Because the lip runs against the shaft, this is a wear item, and it is normally replaced once oil weeping or shaft movement shows up.

Reading the code helps when you are cross-referencing. DBH identifies the brand, 5666 is the item code, and the three figures that follow in the catalog line describe the shaft, the bore and the height. Written out: shaft 100 mm, housing 115 mm, height 9 mm. With those three values on hand, a purchasing or maintenance tech can check the seal against another maker's listing and confirm whether the profiles match before ordering.

You will find seals of this type in gearboxes, pumps, electric motors, transmission shafts and similar industrial machinery. They sit where a rotating shaft passes through a housing and where the pressure inside differs from the pressure outside. Their role is to keep oil or grease contained and to stop outside contamination from reaching the bearings behind them.

Installation has a few points worth watching. Check the sealing area of the shaft for burrs or deep scoring before the seal goes in. Coat the lip with the same oil or grease the equipment runs on. Seat the seal square to the shaft, either flush with the housing or slightly recessed depending on how the cover is made. If the shaft itself is worn, a repair sleeve or a seal with an offset lip is an option to consider.

When you request a quote, include the full code and the housing dimensions. If the old seal has no readable markings, the shaft diameter, outer diameter and height are enough for us to identify a match. MR Industrial Accessories LLC supplies the DBH brand and serves customers throughout the United States and in several Latin American countries, and our team can point you to the option that fits your equipment.

To move ahead with a DBH 5666 replacement, message us on WhatsApp with code 5666 and the dimensions of your application. We reply promptly and can suggest equivalents or help you confirm the right choice.