DBH 8140 radial shaft seal — 40 x 72 x 11.5

DBH 8140 belongs to radial shaft seal, part of our Seals range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 8140 and any equivalents.

The DBH 8140 is a radial shaft seal designed to retain lubricant and keep contaminants out of rotating equipment. With a shaft diameter of 40 mm, housing diameter of 72 mm, and height of 11.50 mm, it fits a range of medium-duty power transmission and pump applications. MR Industrial Accessories LLC supplies this seal and can help you verify compatibility before ordering.

This seal uses an Lx configuration: a single lip with a spring that maintains contact with the rotating shaft. The metal case presses into the housing, while the elastomeric lip rides on the shaft to prevent leaks. Over time, wear or shaft grooving can reduce sealing effectiveness, so replacement is recommended when leakage appears.

Typical uses include gearboxes, centrifugal pumps, electric motors, and drive shafts. The seal protects bearings and lubricant from dust, moisture, and debris. It is also found in mixers, fans, and conveyors where shaft penetration must be sealed.

For installation, inspect the shaft for burrs or wear and ensure the sealing surface is clean and lightly lubricated. Press the seal into the housing using a driver that contacts only the outer metal case, not the lip. Verify that the housing depth matches the 11.50 mm height. If the shaft has a groove, consider a seal with an auxiliary lip or a wear sleeve.

If you need an equivalent to the DBH 8140, send us the part number or the three dimensions. We can check alternatives from other brands or confirm fitment without housing modification. We also advise on lip type and elastomer material based on your fluid and operating temperature.

To request a quote or ask about compatibility, contact MR Industrial Accessories LLC by WhatsApp or email with the part number. We respond promptly and can suggest suitable options for your equipment.