DBH 8109/85 radial shaft seal — 24 x 34.4 x 15/19.5

DBH 8109/85 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 8109/85 and any equivalents.

The DBH 8109/85 is a radial shaft seal that keeps lubricant in and contaminants out of rotating equipment. It fits a 24 mm shaft, a 34.4 mm housing and has a height of 15.00/19.50 mm. The A 110 design pairs a sealing lip with a metal case for rigidity and centering. As a wear part, it should be replaced whenever the assembly is opened.

The part number 8109/85 tells you the seal's size group. On the data sheet, the dimensions appear as shaft (d) 24 mm, housing (D) 34.4 mm and height (h) 15.00/19.50 mm. The A 110 design means a radial shaft seal with a sealing lip and a metal case, intended for rotating shafts with permanent lubrication. The dual height figure (15.00/19.50 mm) reflects a profile that can accommodate some variation in the seat, typical of seals with a flange or auxiliary lip. Before installation, make sure the housing bore is free of burrs or marks that could harm the lip.

Seals in this size range show up in gearboxes, electric motors, centrifugal pumps, compressors and transmission equipment. They also appear on fan, mixer and conveyor shafts where rotation is continuous and oil or grease is present. In food, chemical or water treatment plants, the seal also acts as a containment barrier: it stops leaks that could affect the process and protects nearby bearings. If the equipment sees heavy dirt or water, consider a seal with an additional lip or a dust guard.

Selecting a seal correctly goes beyond measuring the shaft. You also need the housing diameter and depth, the shaft surface condition (hardness and roughness), the rotation speed and the lubricant type. A scratched or oval-worn shaft prevents the lip from seating evenly, and the leak returns. During installation, lubricate the lip with the same oil used in the equipment, press it in perpendicular with a tube or press, and avoid hammer blows. If the housing is damaged, think about resurfacing it or using a seal with an oversized case.

For an equivalent from another brand or a different design, send part number 8109/85 together with the shaft, housing and height dimensions. A photo of the old part or the assembly drawing works too. With that information, we review options in the DBH line and other brands we supply, and confirm the best fit.

MR Industrial Accessories LLC supplies the DBH brand as part of its seals and oil seals range. If you have the part number ready, send it via WhatsApp or email and we will reply with a suitable alternative. We can also help if the original seal is unavailable and you need to find an equivalent size.