Radial shaft seal DBH 9247 — 25.00 x 40.00 x 8.00

DBH 9247 is a radial shaft seal reference, within Seals. Request a quote for 9247 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 9247 oil seal is a single-lip radial shaft seal that mounts on the shaft and seals against the housing to retain lubricant and block the entry of dust, water or particles. With a 25 mm shaft diameter, 40 mm housing diameter and 8 mm height, it is a very common size in gearboxes, pumps and electric motors. MR Accesorios Industriales carries it as part of its seals and oil seals line.

This item is a DBH 9247 radial shaft seal, of Lr design, with the following dimensions: shaft diameter 25 mm, housing diameter 40 mm and height 8.00 mm. The Lr design corresponds to a single sealing lip with spring, intended for rotating shafts with permanent lubrication. The designation 9247 identifies this size within the DBH line. It is a wear component: its function is to keep oil in and contamination out, not to carry loads.

Typical applications of a 25 x 40 x 8 mm oil seal include gearboxes, speed reducers, centrifugal pumps, electric motors, compressors and power transmission equipment. It also appears on fan shafts, mixers and machine tools where the shaft pass-through at a housing must be sealed. In all cases it works on a rotating shaft and against a machined surface, with the lip in continuous contact.

To select and install an oil seal, you must verify the shaft and housing dimensions, the condition of the surface where the lip runs, the working temperature and the type of lubricant. The lip must not be installed dry: it is lubricated with the same grease or oil used in the equipment. Check that the shaft has no burrs or deep marks and that the housing is clean and free of deformation. If the previous seal failed, also check the concentricity and play of the bearing or bushing.

If you need a nearby size, a seal with a different height or a design other than Lr, the most practical approach is to send the code 9247 together with the current shaft and housing dimensions. With that data, an equivalent can be found in the same brand or in another line that MR carries. If you do not have the code at hand, the dimensions taken with a caliper and a photo of the old seal are enough to guide the search.

MR Accesorios Industriales carries the DBH brand as part of its seals and oil seals catalog. To request a quote for this size or ask for an alternative, send the code 9247 on WhatsApp and the technical team will reply with the option that best fits your equipment. If the seal goes inside an assembly, it is also advisable to send the drawing or the component list so that no seal is left out.