Radial shaft seal DBH 9963/85 — 31.00 x 43.00 x 10.30

DBH 9963/85 is a radial shaft seal reference, within Seals. Request a quote for 9963/85 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 9963/85 radial shaft seal is a lip seal that mounts in the housing and seals against the rotating shaft to retain lubricant and block the entry of dust, water or particles. With a 31 mm shaft, 43 mm housing and 10.30 mm height, and design A 349, it is a commonly used size in gearboxes, pumps and power transmission equipment. At MR Accesorios Industriales we carry it as part of our line of seals and oil seals for maintenance and replacement.

This item is a DBH 9963/85 radial shaft seal, identified by its designation 9963/85 and by design A 349. Its dimensions are 31 mm shaft diameter, 43 mm housing diameter and 10.30 mm height. That combination defines the seat: the lip runs on the 31 mm shaft and the body fits into a 43 mm bore with 10.30 mm of usable depth. Design A 349 corresponds to the construction geometry of the seal within the DBH line.

Typical applications for a seal of this size appear in gearboxes, gearmotors, centrifugal pumps, mixers, fans and power transmission equipment. In all of these cases it performs the same function: keeping oil or grease inside the assembly and preventing contaminants from entering through the shaft passage. It is also used on machine tool shafts and in process equipment where there is continuous rotation with lubrication.

To install it properly, check that the 31 mm shaft has no burrs or marks on the sealing track and that the 43 mm housing is clean and free of deformation. Lubricate the lip before inserting it and seat the part squarely so as not to damage the edge. When selecting, take into account the rotation speed, working temperature and type of lubricant; if the shaft shows wear, it is worth evaluating a seal with an offset lip or a repair sleeve.

If you need an equivalent or a nearby size, send us the part number 9963/85 along with the shaft, housing and height dimensions, and the type of fluid and working temperature. With that data we can locate the part in the DBH line or find a compatible alternative within our catalog of seals and oil seals. It also helps if you send us a photo of the old seal and of the seat where it is mounted.

At MR Accesorios Industriales we carry the DBH brand as part of our range of seals and oil seals. If this seal is the one you need, send us the part number by WhatsApp and we will give you a quote. If you have doubts about the size or the design, ask us and we will help you confirm that the part is the right one for your equipment.