DBH 5119Sil radial shaft seal — 25 x 52 x 7

DBH 5119Sil 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 5119Sil and any equivalents.

When a gearbox, pump or motor starts weeping oil around the shaft, the DBH 5119Sil seal is often the part that needs replacing. It is a radial shaft seal sized for a 25.00 mm shaft, a 52.00 mm housing bore and a 7.00 mm height, built in the Lz configuration. MR Industrial Accessories supplies this line and can help you confirm that the code matches your equipment before you order.

Reading the code helps in selection. The 5119Sil number identifies the seal within the DBH line, while the three figures that follow in the catalog refer to shaft, housing and height. In this case those are 25.00 mm, 52.00 mm and 7.00 mm. The Lz designation tells you the seal carries both a sealing lip and a dust lip, so it works on two fronts: it holds lubricant inside the housing and keeps dust, water and other contaminants out. A spring inside the elastomer keeps the lip pressed against the rotating shaft, which matters when alignment is not perfect.

You will find this seal in gearboxes, centrifugal pumps, electric motors, compressors, spindles and transmission assemblies. Agricultural, food and process machinery also use it where cleanliness and reliable operation are priorities. In every case the goal is the same: stop oil or grease from escaping and block particles from entering, which protects bearings and gears downstream. If your equipment runs a 25 mm shaft through a 52 mm bore, this seal is a candidate.

Before installing, check that the shaft and housing dimensions match the values above and that the 7.00 mm height fits the cavity without touching other components. The Lz design suits moderate peripheral speeds and low pressures. Lubricate the lip, drive the seal in with a proper installation tool rather than a hammer, and keep the spring facing the fluid side. For specific operating limits, refer to the manufacturer's product page.

If you need a cross-reference, send code 5119Sil or simply your shaft and housing measurements. MR Industrial Accessories can search other brands or lines for a seal that respects the same dimensions and design type, and we can advise whether a different height or a special material for high temperatures or chemicals would work in your space. The objective is to keep your production running while the right seal is identified.