DBH 5519 radial shaft seal — 31.75 x 52.37 x 12.7

DBH 5519 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 5519 and any equivalents.

The DBH 5519 is a single-lip radial oil seal that keeps lubricant in and contaminants out of rotating shaft assemblies. With a shaft diameter of 31.75 mm, a housing bore of 52.37 mm and a height of 12.70 mm, it fits gearboxes, pumps, electric motors and other transmission equipment. MR Industrial Accessories supplies this seal as part of its line of seals and oil seals for industrial maintenance and replacement.

This radial shaft seal carries the designation 5519 and an Mz design. The lip runs against the shaft while the outer diameter is press-fitted into the housing. Because the Mz construction defines how the lip and body are assembled, confirm it against the manufacturer's data sheet before installation, especially when replacing a worn or non-original seal.

Common uses include gearboxes, centrifugal pumps, electric motors, rollers and power transmission equipment. In each case the seal retains oil or grease and blocks dust and water that would otherwise shorten the life of bearings and gears. As a wear part, the lip hardens or wears with service hours and eventually loses its sealing ability, so it is often replaced during preventive maintenance.

When selecting a replacement, match all three dimensions to the shaft and housing: shaft 31.75 mm, housing 52.37 mm, height 12.70 mm. Inspect the shaft surface for scratches or burrs, since these will damage the new lip. Lubricate the lip before installation and press the seal in perpendicular to the shaft using a tool that contacts the outer diameter, not the lip. If the housing has a shoulder or the shaft is worn, a seal with a sleeve may be needed.

To find an equivalent to the DBH 5519, send the full code and, if possible, caliper measurements of the shaft, housing bore and height. A photo of the old seal and the housing also helps confirm the lip type and design. You do not need the exact designation; the dimensions guide the search within the DBH line or other brands we supply.

MR Industrial Accessories supplies the DBH brand as part of its seals and oil seals catalog. If the 5519 is the one you need, or if you want us to look for an equivalent size, send the code on WhatsApp or by email. We can also advise on installation and on what to check on the shaft and housing before mounting the part.