Radial shaft seal DBH 8140 — 40.00 x 72.00 x 11.50

DBH 8140 is a radial shaft seal reference, within Seals. Request a quote for 8140 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 8140 radial shaft seal is a lip seal that mounts on the shaft and seals against the housing to retain lubricant and block the entry of contaminants. Its dimensions of 40 mm shaft, 72 mm housing and 11.50 mm height place it in medium-sized power transmission equipment and pumps. MR Accesorios Industriales carries this brand and advises you so you choose the correct seal for your application.

This item is a DBH 8140 radial shaft seal, with the following dimensions: 40 mm shaft diameter, 72 mm housing diameter and 11.50 mm height. The Lx design corresponds to a single lip seal with spring, intended for rotating shafts with lubrication. The elastomeric lip bears on the shaft and creates a dynamic seal that prevents oil or grease leaks, while the metal case fits into the housing. It is a wear part that should be replaced when dripping appears or play is detected.

Typical applications for a seal of these dimensions include gearboxes, centrifugal pumps, electric motors, drive shafts and process equipment. In all cases it seals the passage of the shaft through the casing, protecting the bearings and the lubricant from dust, water or particles. It is also used in mixers, fans and conveyors, where the seal prevents lubricant loss and the entry of dirt into the bearing.

To install a radial shaft seal, check that the shaft has no burrs or wear and that the sealing surface is clean and lubricated. The seal is inserted with a tube or driver of suitable diameter, applying uniform pressure on the outer ring, never on the lip. Before placing it, check that the housing is in good condition and that the 11.50 mm height matches the available depth. If the shaft shows a groove or wear, evaluate a nearby size or a design with an auxiliary lip.

If you need a seal equivalent to the DBH 8140, the most practical approach is to send us the full part number or the shaft, housing and height dimensions. With that data we can look for an alternative from another brand or confirm whether there is a close size that fits without modifying the housing. We can also advise you on the lip type and elastomer material according to the fluid and working temperature. The idea is that you do not buy blindly: first we verify dimensional and functional compatibility.

To request a quote for the DBH 8140 oil seal or ask about an equivalent size, send us the part number by WhatsApp at MR Accesorios Industriales. We will reply with the alternatives that best fit your equipment. If you have doubts about installation or the Lx design, we can also advise you so the repair goes right the first time.