DBH 6749 radial shaft seal — 48 x 101.8 x 12

DBH 6749 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 6749 and any equivalents.

The DBH 6749 is a radial shaft seal built to hold lubricant in and keep dust, water and particles out of rotating assemblies. Its designation 6749 covers a lip seal with an Lz design, sized for a 48 mm shaft, a 101.80 mm housing bore and a 12.00 mm height. Shops choose this size when the housing sits close to the 100 mm mark and the axial room available is tight. MR Industrial Accessories supplies the brand and can help you confirm the seal fits your equipment.

Reading the code is the fastest way to check a replacement. The 6749 number ties to the dimensional set: shaft 48 mm, housing bore 101.80 mm, height 12.00 mm, with the Lz designation describing the lip construction. All three measurements have to line up with the shaft and the housing seat, otherwise the seal will not seat properly or will run with the wrong lip contact.

You will find seals in this size range on gearboxes, pumps, electric motors, drive shafts and other rotating industrial equipment where oil or grease has to stay inside the assembly. The near-100 mm bore and 48 mm shaft combination shows up in housings where there is not much room along the axis. Like any lip seal, it is a wear part: once it starts weeping or the running area makes noise, replacement is the normal next step.

Before ordering, measure the shaft at 48 mm and the housing bore at 101.80 mm, and confirm the 12.00 mm height clears the seat. Check that the Lz design suits the lubricant in use and the speed and temperature the equipment sees. At installation, keep the lip free of nicks, put a film of lubricant on the sealing edge and check that the housing is concentric. A worn shaft surface is worth addressing at the same time.

If you are cross-referencing, send the code 6749 or the three dimensions of the seal you are pulling out. MR Industrial Accessories carries alternatives from other brands and can point you to the part that matches your application. Where a different lip configuration is needed, the team can also review seals with other designs.

Quotes are handled by WhatsApp or email. Send the code 6749 and the team will get back to you with what you need to keep the maintenance job or project moving.