Radial shaft seal DBH 9399 — 48.00 x 63.00 x 11.00

DBH 9399 is a radial shaft seal reference, within Seals. Request a quote for 9399 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 9399 radial shaft seal is a single-lip seal that mounts in the housing and seals against the rotating shaft to retain lubricant and stop the ingress of dust, water or particles. Its dimensions of 48 mm shaft, 63 mm housing and 11 mm height place it in medium-size transmission equipment and pumps. It is a wear part: when the lip hardens or the shaft shows a wear groove, it should be replaced before oil loss damages bearings and gears.

This item is a seal from the DBH line, identified with part number 9399. Its dimensions are 48 mm shaft diameter, 63 mm housing diameter and 11.00 mm height. The Lx design corresponds to a single-lip seal with spring, intended for rotating shafts with internal lubrication. The sealing lip bears on the shaft and the outer diameter fits into the housing, which must be machined with the diameter and depth shown on the product page. DBH is an official brand that MR carries.

Typical applications for a seal of these dimensions appear in gearboxes, centrifugal pumps, electric motors, transmission shafts and process equipment. In all these cases it serves two functions: retaining the oil or grease inside the assembly and preventing contaminants from entering from outside. It is also used as a secondary barrier in assemblies that already have a main seal, to reinforce the closure in dusty or humid environments.

To select the correct seal, check three things: that the shaft diameter is within the recommended tolerance, that the housing has the right diameter and depth, and that the peripheral speed and working temperature are compatible with the lip material. When mounting it, lubricate the lip with the same oil used in the equipment, avoid striking it and make sure the spring faces the fluid to be retained. A lip mounted dry or twisted fails quickly.

If part number 9399 is not the one you need, or if the shaft is worn and you want a nearby size, send us the current dimensions: shaft diameter, housing diameter and height. With that data we look for the equivalent in the same brand or in another line we carry. We can also evaluate variants with a double lip or with a dust guard if the equipment works in a highly contaminated environment.

At MR Accesorios Industriales we carry DBH seals and seals from other brands, as well as bearings, housings, power transmission and lubricants. If you already have part number 9399 or the dimensions at hand, write to us on WhatsApp and we will send you a quote. Our technical team helps you confirm the designation and resolve mounting questions before you place the order.