DBH 1173 radial shaft seal

DBH 1173 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 1173 and any equivalents.

The DBH 1173 is a radial shaft seal built to the A 378 design. It combines a sealing lip with a metal outer body, so it presses into a cylindrical housing and works as a dynamic barrier on the shaft. Its job is to hold lubricant in and keep dust, water and particles out of rotating assemblies. MR Industrial Accessories supplies this seal as part of its seals and oil seals range.

The code tells you what you are holding: DBH 1173, with a shaft diameter of 0 mm, a housing diameter of 60.50 mm and a height of 12.70 mm. The A 378 designation describes the lip and body geometry. Treat those figures as the starting point, not a confirmation. Measure the shaft and the cavity before you order, because a small difference in either one changes how the lip contacts the shaft and how the seal seats.

You will find this type of seal in gearboxes, pumps, electric motors, rollers and transmission equipment. In each case it does two things at once: it keeps the oil where it belongs and it blocks contamination from the outside. On a shaft running through a dirty or wet area, that lip is the barrier that protects bearings and gears from premature wear.

Installation decides how long the seal lasts. Clean the housing bore and the shaft, and remove burrs or marks that could cut the lip. Lubricate the lip before you slide the seal into place, and press on the outer diameter with a tube or socket rather than striking the seal directly. Seat the full 12.70 mm height. If the shaft is worn, look at an alternative size or a seal with an auxiliary lip. Shaft-to-housing alignment also matters, since misalignment is a common cause of leaks.

If you need a replacement for the DBH 1173, send the code along with your current measurements. We can point you to options in the same family or to other brands we carry, based on your application and how the seal is mounted.