DBH 9973Pol radial shaft seal — 38 x 49.2 x 7.8/11.8

DBH 9973Pol 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 9973Pol and any equivalents.

The DBH 9973Pol is a radial shaft seal built to hold lubricant in and keep dirt out where a shaft turns inside a fixed housing. It fits a 38 mm shaft in a 49.20 mm bore, and its 7.80/11.80 mm height covers two lips at different levels. Maintenance teams use this type of seal on pumps, motors, gearboxes and transmission drives. MR Industrial Accessories supplies the DBH line and can help you confirm the right seal for the job.

Reading the designation first helps you match the part. The 9973Pol belongs to the DBH radial seal range, and the A 118-R AH design means one sealing lip plus an outer protective lip. Sizes are given as shaft (d) 38 mm, housing (D) 49.20 mm and height (h) 7.80/11.80 mm. Because two heights are listed, the main lip and the auxiliary lip do not sit in the same plane once the seal is pressed into the bore.

You will find this seal in centrifugal pumps, electric motors, gearboxes, rollers and similar transmission equipment. In each case one surface rotates and the other stays still, and the seal sits between them: lubricant stays in the assembly while chips, dust and moisture are kept out. How well it excludes water or grit depends on which way the seal is fitted. Treat it as a wear item and swap it out when leakage shows up or when the machine is already open for other work.

Selection starts with the two diameters. Confirm that the shaft measures 38 mm and the bore 49.20 mm before ordering, since a mismatch will cause leaks or a poor fit. The 7.80/11.80 mm height has to seat in the housing without being forced, and the outer lip should face the side you want to protect. Lubricate the lip before pressing the seal in, and inspect the shaft for burrs, scratches or grooves in the contact band. A worn shaft can be handled with a repair sleeve or a seal that has its lip offset.

Need a replacement or an equivalent? Send the part number 9973Pol through WhatsApp together with your shaft and housing measurements. A photo of the old seal or the equipment drawing also helps. MR Industrial Accessories compares the designation and the attributes to propose a compatible option from the same radial seal category. If you are unsure about lip orientation, elastomer choice or how the seal behaves with your lubricant, ask before installing.