DBH 6247 radial shaft seal — 18 x 40 x 10

DBH 6247 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 6247 and any equivalents.

A spring-loaded, single-lip radial shaft seal, the DBH 6247 keeps lubricant where it belongs and blocks dust, water and other contaminants from reaching the bearing cavity. It seats with a press fit in covers, cases and housings while its lip rides on the rotating shaft on a thin oil film, which keeps friction low and sealing effective. Because the elastomer lip wears over time, hardening or showing marks, it is treated as a replacement item and swapped out before leakage or contamination begins.

The size callout reads shaft 18 mm, housing 40 mm, height 10 mm. In the Lx configuration, the sealing lip points inward and the spring sits on the lubricant side. The metal outer body carries a coating that helps it seat in the bore, while the elastomer lip presses lightly against the shaft to hold the seal without adding drag.

Typical installations include pumps, electric motors, gearboxes, gear cases and power transmission equipment, as well as machine tools, mixers, conveyors and agricultural machinery. Choosing the right unit comes down to three values: shaft diameter, housing bore and the width the cavity allows. The Lx layout suits arrangements where oil or grease sits on the inside and a straightforward barrier against outside dirt is enough.

During installation, clean the bore and shaft first and look for burrs or nicks that could cut the lip. Apply a little of the same oil or grease used in service to the lip before sliding the seal into place. Press it in squarely, using a tube or spacer that bears on the outer ring rather than the elastomer. If the shaft surface is worn, a seal with an auxiliary lip is worth considering. Shaft runout and eccentricity also shorten service life.

Need a cross-reference? Send part number 6247 or the dimensions 18 x 40 x 10 mm on WhatsApp and we will check options in other brands or configurations that match the mounting dimensions. Inspecting the shaft is a good idea at the same time, since a fresh lip on a worn track may not seal properly. Once we have the details, we will come back with the choices to quote.

MR Industrial Accessories supplies the DBH brand. For questions about this oil seal or to confirm a size, message us on WhatsApp with part number 6247 and we will provide the technical information your equipment requires.