Radial shaft seal DBH 9498 — 21.80 x 31.70 x 5.00

DBH 9498 is a radial shaft seal reference, within Seals. Request a quote for 9498 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 9498 oil seal is a single-lip radial shaft seal, designed to retain lubricant and exclude contaminants on rotating shafts. Its dimensions —21.80 mm shaft diameter, 31.70 mm housing bore and 5.00 mm height— make it suitable for tight axial spaces, where a seal with a taller section will not fit. It is press-fitted into the housing and runs on the shaft with the lip seated against it. It is a wear part: it should be replaced when oil leakage or dirt ingress appears.

This item is a DBH 9498 radial shaft seal, a designation that corresponds to a single-lip profile with a spring. The dimensions shown on its product page are shaft (d) 21.80 mm, housing (D) 31.70 mm and height (h) 5.00 mm, with an Lx design. That combination of diameters and that small height define a thin-walled seal, installed in machined housings with a tight tolerance. The lip, reinforced by an internal spring, wipes the shaft and keeps the lubricant inside.

Typical applications for a seal of this size appear in small gearboxes, low-power electric motors, process centrifugal pumps, reciprocating compressors and transmission equipment. It is also found on fan, agitator and machine tool shafts where an oil bath must be separated from an environment with dust or chips. In all those cases it performs two functions at once: retaining the lubricant and slowing the entry of particles that accelerate wear on bearings and bushings.

To select the correct seal, verify that the shaft diameter, housing bore and height match those of the DBH 9498. The peripheral shaft speed, working temperature and type of lubricant determine service life: at higher speed or temperature, an elastomer with better performance is advisable. During installation, lubricate the lip before sliding it on, use a mandrel that does not damage it and make sure the shaft has no burrs or splines in the contact area.

If you need an adjacent size or an equivalent from another brand, send us the full code and the dimensions of the old seal: shaft diameter, housing bore and height. With that data we search the DBH line or compatible alternatives. If the housing is worn, we can also evaluate a seal with a sleeve or a repair bushing. The more precise the information, the faster we reach the part you need.

To request a quote for the DBH 9498 oil seal, send the code 9498 on WhatsApp to MR Accesorios Industriales. If you have doubts about the size or want to confirm the design, attach a photo of the part and the dimensions taken with a caliper. That way we reply with the option that best fits your equipment.