Radial shaft seal DBH 9171/85 — 25.00 x 35.00 x 8.00

DBH 9171/85 is a radial shaft seal reference, within Seals. Request a quote for 9171/85 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 9171/85 radial shaft seal is a lip seal designed for rotating shafts with a 25 mm diameter, a 35 mm housing and an 8 mm height. Its function is to retain lubricant inside the assembly and prevent the entry of dust, water or particles that accelerate wear on bearings and bushings. It is press-fitted into the housing and runs on the shaft surface, so the quality of both parts defines its service life. It is a common replacement part in industrial maintenance.

This item is a seal from the DBH line, identified by the designation 9171/85. Its dimensions are 25 mm shaft, 35 mm housing and 8.00 mm height. The A 016 design defines the geometry of the lip and the metal body, intended for press fitting into a cylindrical housing. The sealing lip runs on the shaft with slight interference, and the outer body secures it in the housing. It is a radial sealing component for rotating shafts, not for reciprocating motion.

Typical applications for a seal of these dimensions include gearboxes, pumps, electric motors, reducers and power transmission equipment. In all cases it performs the same function: confining the oil or grease inside the assembly and blocking the entry of external contaminants. It is also used on fan, mixer and conveyor shafts, where the environment often contains dust or moisture. It is a critical part for the service life of the bearings that share the same housing.

To correctly select a seal, you must verify the shaft diameter, the housing diameter and the available height. The shaft surface must be ground and free of splines or burrs, with suitable hardness to prevent premature lip wear. The housing must have an entry chamfer so the seal is not damaged during installation. It is recommended to lubricate the lip before installing and to use an installation tool that presses on the metal body, never on the lip. Shaft eccentricity and play also affect sealing.

If you need an equivalent seal or a nearby size, the most practical approach is to send us the part number 9171/85 or the current shaft, housing and height dimensions. With that data we can look for alternatives within the DBH line or other brands we carry. We can also advise you if the original seal shows irregular wear, to assess whether the problem lies in the seal or in the condition of the shaft. MR Accesorios Industriales carries this brand as part of its seals and oil seals catalogue.

To request a quote for the DBH 9171/85 oil seal, send the part number by WhatsApp to MR Accesorios Industriales. If you have doubts about the size or design, attach a photo of the old part or the dimensions taken with a caliper. That way we can quickly confirm the reference and send you the quote.