DBH 8766 radial shaft seal — 19 x 40 x 7

DBH 8766 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 8766 and any equivalents.

A radial shaft seal such as the DBH 8766 keeps lubricant where it belongs and keeps contaminants out. It sits between a turning shaft and a stationary housing, so the lip rides on the shaft while the outer diameter presses into the bore. With a 19 mm shaft, a 40 mm housing and a 7 mm height, plus the Lx lip configuration, it suits gearboxes, pumps, motors and similar rotating equipment. Treat it as a wear item: once the lip stiffens or fluid starts to escape, fit a seal of the same designation.

The DBH line identifies this seal by the code 8766. Its three critical measurements are a 19.00 mm shaft diameter, a 40.00 mm housing diameter and a 7.00 mm height. The Lx designation describes a single lip with a spring, which is intended for rotating shafts that run with lubrication at moderate speed. The lip contacts the shaft, while the outside diameter holds in the housing by interference, so no extra retainer is needed to keep it in place.

Seals in this size range turn up in gearboxes, centrifugal pumps, electric motors, rollers and transmission assemblies. The job is the same everywhere: hold oil or grease in and keep out the dust, water and particles that shorten bearing and gear life. Machine tools, compressors and process equipment with a shaft running in a machined bore are other common locations.

Before installation, inspect the shaft for burrs, scratches or a worn contact band, since a damaged surface will destroy a new lip quickly. Coat the lip with the same oil or grease used in the unit, then press the seal in squarely rather than tapping it from one side. Where the housing has a shoulder or radius, keep to the correct depth so the lip does not sit on a worn track.

For an equivalent, send the code 8766 along with the shaft, housing and height measurements taken from the equipment. With those figures we can search another option from the same brand or a different line that does the same job. A photo of the old seal and its housing also helps when the original marking has worn away. The number itself does not have to match; the three dimensions do.

MR Industrial Accessories supplies the DBH brand as part of its seals and oil seals range. To request a quote, send the code 8766 by WhatsApp or email and our team will reply with the option that fits your equipment. You can also ask about seals in other sizes from the same category.