DBH 8484 radial shaft seal — 17 x 40 x 8.5

DBH 8484 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 8484 and any equivalents.

Part number 8484 is a DBH radial shaft seal in the Lx design. It works as a lip seal: the outer surface fits the housing bore while the lip runs against the rotating shaft, holding lubricant in and keeping dust, water and particles out. Its dimensions are shaft 17 mm, housing 40 mm and height 8.50 mm. MR Industrial Accessories includes this seal in its line of seals and oil seals.

The reference 8484 identifies this DBH seal, and the Lx code tells you it is a single-lip, spring-loaded design for lubricated rotating shafts. Reading the size this way helps when comparing it against other seals in the same series: shaft 17 mm, housing 40 mm, height 8.50 mm. Those three values are what you match to the equipment before ordering.

Typical mounting points are gearboxes, pumps, electric motors, rollers and other power transmission assemblies where a shaft turns inside a housing and grease or oil has to stay contained. Machine tools, mixers and conveyors also use this type of seal. Treat it as a wear part: once the lip hardens or shows marks, leakage starts, and replacing it early protects the bearing and the shaft.

During installation, inspect the shaft for burrs or worn spots at the contact area and make sure the housing bore is clean and free of impact damage. Apply lubricant to the lip, then press the seal in with a driver that contacts the metal case evenly, never the lip itself. A shaft with a deep groove may call for an offset lip. Speed, temperature and the fluid being retained all influence the final selection.

For an equivalent, send part number 8484 along with your shaft and housing measurements, a photo of the old seal if available, and the equipment it comes from. That information lets us review the DBH line and the options that fit, and advise whether another height or design suits the application better.

MR Industrial Accessories supplies the DBH brand as part of its seals and oil seals range. To request a quote on seal 8484, message us on WhatsApp or by email with the part number and measurements, and we will come back with the option that matches your equipment.