DBH 6784 radial shaft seal — 12.3 x 32 x 7.85

DBH 6784 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 6784 and any equivalents.

The DBH 6784 is a radial shaft seal, also called a lip seal, used to keep lubricant in and contaminants out where a shaft rotates. Its dimensions are 12.30 mm for the shaft, 32.00 mm for the housing and 7.85 mm for the height. That small height allows it to fit in assemblies where axial space is tight. The seal is pressed into the housing and runs against the shaft, forming a dynamic barrier that protects bearings, bushings and gears. Because it is a wear part, the elastomer and design you choose affect how long the assembly lasts.

The designation 6784 comes from the DBH brand and corresponds to a lip seal of Lx design: a sealing lip in a standard configuration for rotating shafts. The outer case is metallic, while the lip elastomer determines which fluids and service temperatures the seal can handle. In operation, the lip rides on the shaft with slight interference, and a thin film of lubricant keeps wear down.

You will find seals like this in gearboxes, pumps, electric motors, transmission shafts and process equipment, wherever oil or grease has to stay inside and dust or water has to stay out. They are also common in low-speed applications and in assemblies where the shaft is not badly worn. Since the seal is replaced often, note the size and compound before you take the machine apart so the repair is not held up.

For correct selection, check that the shaft diameter falls within the recommended tolerance for radial shaft seals and that the housing has the right finish and hardness. During installation, use a tool that presses on the outer edge, never strike the lip, and set the spring facing the fluid being retained. Lubricate the lip before you slide the shaft in, and do not let the seal rotate as it goes on. If the shaft has splines or burrs, cover the lip with a sleeve.

To request a quote, send part number 6784 or the shaft, housing and height dimensions. A photo of the part or the original manufacturer's number also works. With that information we look for alternatives in the same series or in different compounds to suit the fluid and operating temperature. If the seal sits on a bearing, we can review the complete assembly and suggest the seal that fits best.