DBH 6257 radial shaft seal — 19 x 31.75 x 6.35

DBH 6257 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 6257 and any equivalents.

A radial shaft seal from the DBH line, reference 6257, keeps oil or grease where it belongs on a turning shaft and keeps dust and water out. Its 19 mm shaft, 31.75 mm housing and 6.35 mm height suit gearboxes, pumps, electric motors and power transmission assemblies. MR Industrial Accessories supplies this brand and helps you match the seal to the shaft, the housing and the lubricant in use.

Read the reference in three steps: shaft 19 mm, housing 31.75 mm, height 6.35 mm. The 6257 code is the size identifier inside the DBH line, and the MPN 6257 points to the same item. The Lx design is a single lip with spring, built for rotating shafts lubricated with oil or grease. The section is compact, which helps where a taller seal will not fit.

You will find this size in small gearboxes, centrifugal pumps, low-power electric motors, spindles and transmission equipment, as well as machine tools, packaging lines and centralized lubrication systems. Its job is to hold lubricant in and keep contaminants out, which protects bearings and gears. Before committing to it, check the working temperature and the peripheral speed of the shaft.

During installation, inspect the shaft first: no burrs, no deep scratches, and a surface finish suited to the lip. The housing should be clean and undistorted. Press the seal in with a press or a mounting tube that pushes on the outer ring, not on the lip, and coat the lip with the same oil or grease used in the equipment. If the shaft is worn, a seal with the lip in a different position may be the better choice. Pressure, temperature and the fluid being retained all shape the final selection.

For a 6257 equivalent, send the code plus shaft, housing and height. With that we search the DBH line and other brands we supply, keeping the Lx design and lip type in mind, and we can advise when a standard size needs adapting. The more assembly detail you share, the closer the proposal.

To request a quote on the DBH 6257 seal, message us on WhatsApp with code 6257 and the dimensions. We come back with the reference and the technical data you need to confirm the mounting. If you maintain a seal list, we can help you build the full order around the codes you already use.