DBH 8649 radial shaft seal — 42 x 72.5 x 12

DBH 8649 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 8649 and any equivalents.

A radial shaft seal from the DBH line, the 8649 keeps lubricant inside the assembly and keeps dust and water out. It fits a 42 mm shaft, a 72.5 mm housing bore and a 12 mm width, and it is built to the Mx-H design. Gearboxes, pumps, electric motors and power transmission equipment are the usual places this size shows up.

Read the code and the numbers together and you have the whole selection: shaft 42 mm, housing 72.5 mm, width 12 mm, plus the Mx-H designation that fixes how the lip and the outer case are shaped. Construction is a single lip with a metal case and an elastomer element, intended for rotating shafts that run with permanent lubrication.

On the equipment side, a seal in this size range turns up in gearboxes and reducers, centrifugal pumps, electric motors, rollers and transmission drives. It works two ways at once: it holds the oil or grease where it belongs and it keeps contaminants such as dust, water and particles from reaching the bearing area. Treat it as a wear part and inspect the seat whenever leakage or unusual noise appears there.

Fitting depends on the bore matching the seal. Confirm the shaft diameter, the housing diameter and the height against the machined seat before you start. The shaft should be clean and free of burrs or deep marks, and the housing should not be distorted. Lubricate the lip with the same oil or grease the equipment uses, seat the seal without striking it, and keep the lip facing the lubricant side. Driving it in by force damages the lip and cuts its working life.

For a quote on the 8649, send the code, or send the three dimensions you measured. A photo of the removed part or the housing drawing also helps. With that information we check the DBH line and the other brands we supply, and we confirm the option with you before quoting.

DBH is one of the brands MR Industrial Accessories supplies. Send your inquiry for the DBH 8649 oil seal through WhatsApp or email and the team will come back with the technical details you need.