DBH 5540 radial shaft seal — 45 x 61 x 10

DBH 5540 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 5540 and any equivalents.

The DBH 5540 is a radial shaft seal with a 45 mm shaft diameter, 61 mm housing diameter, and 10 mm height, featuring the Mz design. It keeps lubricant in and contaminants out of rotating equipment, where the shaft turns inside a stationary housing. As a wear component, it should be replaced when oil leaks or dust enters. MR Industrial Accessories supplies this brand and can help you find the right replacement.

This radial shaft seal carries the DBH designation 5540. The dimensions are shaft 45 mm, housing 61 mm, and height 10 mm. The Mz design indicates a sealing lip with a metal case, intended for rotating shafts. The 5540 code simplifies locating it in the catalog and comparing with other seals in the same series. If you need to confirm the Mz design or lip material, we check the manufacturer's data sheet before quoting.

Seals like the DBH 5540 are commonly found in gearboxes, centrifugal pumps, electric motors, rollers, and power transmission equipment. They serve two purposes: retaining lubricant and blocking particles, water, or dust. They also appear in machine tools and process equipment with continuous shaft rotation. Because it is a wear part, inspect it at each preventive maintenance interval and replace it at the first sign of leakage.

Proper installation requires a clean housing without burrs or scratches, and a shaft free of splines or damage in the lip area. Lubricate the lip with the same grease or oil used in the equipment, then press it in with a support tube that contacts the outer diameter, never the lip. Make sure the seal sits square to the shaft. If the shaft is worn, consider a repair sleeve. Selection depends on speed, temperature, and the fluid being retained.

We can source an equivalent from the DBH line or other brands we carry. To do so, provide the shaft diameter, housing diameter, and height, along with a photo or the code stamped on the old seal. Knowing the equipment and lubricant type also helps. With that information, we compare options and confirm a fit without housing modifications.

MR Industrial Accessories supplies the DBH brand. If you have the code 5540 or the size 45 x 61 x 10, send the details via WhatsApp or email and we will provide a quote. If unsure, send a photo of the seal and the shaft and housing dimensions; we will help you identify the correct part.