DBH 8414 radial shaft seal — 20 x 31 x 7

DBH 8414 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 8414 and any equivalents.

The DBH 8414 is a radial shaft seal built for rotating shafts. Its nominal dimensions are shaft 20.00 mm, housing bore 31.00 mm and height 7.00 mm. It keeps oil or grease where it belongs and blocks dust, water and particles from reaching bearings and bushings. Because the lip wears over time, this seal is a normal replacement item during preventive or corrective maintenance on pumps, motors, gearboxes and transmission equipment.

The code breaks down simply. DBH identifies the seal line, 8414 is the item number, and the Mz design means a sealing lip combined with a metal outer case. The elastomer lip rides against the shaft and forms the dynamic barrier; the case holds the seal firmly in the housing bore. Reading the dimensions in the same order as the code helps: 20.00 mm shaft, 31.00 mm housing bore, 7.00 mm height.

You will find this size in small centrifugal pumps, low-power electric motors, speed reducers, gearboxes, compressors, and belt- or chain-driven transmission equipment. Machine tools, industrial washing equipment and hydraulic systems also use it where lubricant must stay contained at the shaft rotation point. In every case, the seal shields nearby bearings and bushings from outside contamination.

Selection starts with measurement. Confirm that the shaft and housing match the nominal figures before ordering, and check that the 7 mm height fits the cavity depth so the seal seats correctly. The shaft surface should be free of burrs, scratches and heavy wear, since a rough shaft shortens lip life. Lubricate the lip with the same oil or grease the equipment uses, press the seal in evenly, and avoid hitting it directly.

If you need a replacement or an equivalent, send the code 8414 or the dimensions 20x31x7 mm through WhatsApp. Adding the equipment type, the brand of the assembly and a photo of the original part speeds things up. The team checks options within the DBH line and other brands we supply, keeping the critical dimensions and design type in mind.

To get a quote, message the part number to MR Industrial Accessories. If the size or design is unclear, ask before ordering to avoid installation errors. We can also point you to a suitable lubricant for the lip and share installation guidelines that help the seal last.