DBH 6423 radial shaft seal — 50.8 x 76.12 x 18.25

DBH 6423 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 6423 and any equivalents.

Part number DBH 6423 is a radial shaft seal built to keep lubricant inside a housing and hold contaminants out along a rotating shaft. It fits a 50.80 mm shaft, a 76.12 mm housing bore and an 18.25 mm height, so it drops into equipment already machined to those dimensions. The Mx designation identifies a specific lip and body geometry within the DBH line. MR Industrial Accessories LLC supplies this brand and helps buyers confirm the correct seal for their equipment.

The three figures printed on the seal tell the whole story: shaft 50.80 mm, housing 76.12 mm, height 18.25 mm. The Mx code refers to the construction of the seal itself, a sealing lip paired with a reinforced body intended for ordinary industrial working conditions. Because the dimensions follow the manufacturer's standard designation, the 6423 works as a direct replacement wherever the original seal carried the same numbers.

Seals of this size show up in gearboxes, pumps, electric motors, reducers and rollers, as well as on drive shafts and continuous-process machinery. The job is always the same: hold oil or grease in, keep dust and water out. Equipment running a shaft near 50 mm with a housing bored to standard tolerances is the typical home for this part.

Installation rewards a little care. The shaft and bore should be clean, free of burrs and scratches, and the shaft surface should meet the required hardness and roughness. Lubricate the lip before pressing the seal in, keep it square to the shaft, and avoid striking the face directly. For high peripheral speeds or elevated temperatures, contact MR to review the lip material and elastomer choice.

If you are cross-referencing, send the complete part number DBH 6423 or the shaft and housing dimensions you measured. MR Industrial Accessories LLC can search for equivalents within the same brand or other seal lines we carry, matching the tolerances and design your equipment needs. Approximate dimensions are a poor shortcut here, since a seal that does not fit properly can fail and take surrounding components with it.