DBH 6731 radial shaft seal — 120 x 145 x 15

DBH 6731 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 6731 and any equivalents.

The DBH 6731 is a radial shaft seal that sits on the rotating shaft and closes against the housing bore, keeping lubricant in and dirt, water or fine particles out. Its dimensions are 120 mm shaft, 145 mm housing and 15 mm height, in the Kx design. It fits gearboxes, pumps, motors and other power transmission units built around a shaft of that size. MR Industrial Accessories carries it within its seals range.

Reading the code helps you order the right part. Within the DBH line, 6731 points to one specific combination of sizes and construction, while Kx tells you the seal is a single-lip version with a spring, meant for rotating shafts that run with oil or grease. The measurements to match are shaft 120 mm, housing 145 mm and height 15 mm. Give us those three values and the code, and there is no room for confusion when the order is placed.

You will typically find a seal this size in gearboxes, centrifugal pumps, medium-power electric motors, conveyor rollers and machine tools, where the shaft turns at moderate speed and lubricant is present. It is also common in dusty or damp surroundings, where the seal acts as a barrier on top of the lubricant itself. On equipment that runs with vibration or misalignment, inspect the shaft and housing condition before you install a replacement.

Checking fit comes down to the three measurements: confirm that the shaft, the housing bore and the height all match your unit. Kx describes the lip style and material, so it does not remove the need to look at peripheral speed and operating temperature. When mounting, coat the lip with lubricant, keep tools away from the sealing edge and make sure the shaft surface is free of burrs or scoring. A worn shaft can often be brought back with a repair sleeve.

For a quote, message us the code 6731 together with the shaft, housing and height figures you measured, and a photo of the old seal if you have one. From there we can point you to the equivalent in DBH or in another brand we supply, or to the standard size that matches. We will also tell you whether the Kx design suits your lubricant type and running speed.

Send the code 6731 by WhatsApp or email to MR Industrial Accessories and our team will come back with the options we handle in the seals line. If you need more than one, let us know the quantity and what the equipment does, so the recommendation fits the job.