DBH 5900 radial shaft seal — 85 x 120 x 13

DBH 5900 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 5900 and any equivalents.

A radial shaft seal such as the DBH 5900 sits between a turning shaft and a fixed housing, keeping lubricant in and keeping dust, water and other contaminants out. With an 85 mm shaft, a 120 mm housing bore and a 13 mm height, it fits gearboxes, pumps and mid-size power transmission units. MR Industrial Accessories supplies this brand and can confirm the size before you request a quote.

The designation for this item is 5900, and it belongs to the DBH line of radial shaft seals. Read the size off the code as shaft 85 mm, housing 120 mm and height 13 mm, which correspond to d, D and h in the catalog. The Lz design shown here describes how the lip and the seal body are shaped. It is a standard replacement part, so it is meant for a shaft running inside a machined bore that needs a steady barrier against oil or grease loss.

Sizes in this range turn up in gearboxes, reducers, centrifugal pumps, rollers and power transmission assemblies. Process machinery, conveyors and mixers with a shaft passing through a lubricated housing also use them. Two jobs are handled at once: lubricant stays where it belongs, and outside contamination is kept away from the bearing or gear.

Before installing, check that the shaft and bore match the values shown, that the shaft surface is polished and free of burrs, and that the housing is in good condition. The lip goes toward the lubricant side and should be lubricated before the seal is pressed in. Where vibration or temperature is high, review the design and lip material against the manufacturer's data sheet first.

For an equivalent, send the part number 5900 plus the shaft diameter, housing diameter and height you measured. From that we look at alternatives in the same radial shaft seal category and confirm what is available. We can also check whether the Lz design suits your application or whether a different lip profile would work better.

MR Industrial Accessories supplies the DBH brand. To request a quote, message us on WhatsApp or email with the part number 5900 and your equipment dimensions, and our team will reply promptly with the options and the technical details you need.