Radial shaft seal DBH 9522/85 — 20.00 x 35.00 x 8.00

DBH 9522/85 is a radial shaft seal reference, within Seals. Request a quote for 9522/85 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 9522/85 radial shaft seal is a lip seal designed for rotating shafts of 20 mm diameter, with a 35 mm housing and 8 mm height. Its function is to retain lubricant inside the assembly and block 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 its correct selection and installation are key to preventing leaks and extending equipment service life.

This item is an oil seal from the DBH line, identified by the designation 9522/85. Its nominal dimensions are 20 mm shaft, 35 mm housing and 8.00 mm height, with an Lr single-lip design. That combination places it in the range of compact seals for small-diameter shafts, where axial space is limited and reliable sealing is needed. DBH is a brand that MR carries, so the replacement part arrives with origin traceability and dimensions verified against the manufacturer's data sheet.

Typical applications for a 20 x 35 x 8 mm oil seal appear in small gearboxes, low-power electric motors, centrifugal pumps, mixers, belt conveyors and power transmission equipment in general. It is also found in machine tools, compressors and lubrication systems where a shaft rotates inside a fixed housing. In all cases, the seal separates two environments: the lubricated side and the exposed side, preventing oil or grease from migrating and contaminants from entering the bearing or bushing.

To mount a radial shaft seal, first verify that the shaft and housing diameters match the dimensions of the part, and that the shaft surface has no burrs, deep scratches or wear. The lip should be lubricated before insertion, and installation is done with a tube or socket with a flat face, never by striking the lip. If the shaft shows a worn surface, a nearby size or a seal with an auxiliary lip can be evaluated. Selection also depends on speed, temperature and type of fluid, data that is confirmed against the technical data sheet.

If you need an equivalent or a nearby size, the most practical approach is to send the part number 9522/85 along with the shaft, housing and height dimensions, plus a photo of the old seal or the assembly drawing. With that data, an alternative from the same brand or another line that MR carries can be found, respecting the Lr design and the available space. When the housing allows it, the issue is sometimes solved with a seal of a different height or with a lip of greater coverage.

To request a quote for this DBH 9522/85 oil seal, write to us on WhatsApp at MR Accesorios Industriales with the part number and the quantity you need. If you have doubts about the size or want to confirm that it matches your equipment, send the shaft and housing dimensions and we will help you validate it before ordering. We can also advise you on equivalent oil seals within the same category of radial seals.