DBH 9221 radial shaft seal — 35 x 54.9 x 9/14.7

DBH 9221 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 9221 and any equivalents.

The DBH 9221 is a radial shaft seal built to hold lubricant in place and keep dirt out of rotating assemblies. Its A 128 lip geometry and its 35 mm shaft, 54.90 mm housing and 9.00/14.70 mm height suit equipment where the seal seat is shallow and dependable lip contact matters. Pumps, motors, gearboxes and transmissions are common homes for this part.

Reading the size callout is the quickest way to confirm a match: shaft 35 mm, housing 54.90 mm, height 9.00/14.70 mm. The A 128 designation describes a single lip with a spring, a layout intended for rotating shafts running at moderate peripheral speed. Because the height is stepped, the seal can sit in a bored cavity with a shoulder or in a cover that needs a deeper seat. It serves as a replacement in units that run on oil or grease and must keep that lubricant contained.

You will find seals of this type in centrifugal pumps, electric motors, speed reducers, transmission shafts and process equipment that runs continuously. In those spots the seal blocks oil from escaping and stops dust, water and particles from getting in, which is what shortens the life of bearings and gears. Agricultural and industrial machinery also uses them, since those environments rarely stay clean and a solid barrier against outside contamination is needed.

Selection comes down to three checks: the shaft measures 35 mm, the housing bore measures 54.90 mm, and the 9.00/14.70 mm height matches the cavity depth. At installation, coat the lip with the same oil or grease the equipment uses, keep the sealing edge free of nicks, and confirm the spring sits properly. A shaft with wear or a rough finish is worth repairing, or you may want a seal with an auxiliary lip.

For an equivalent size or a nearby variant, send the part number 9221 or your current dimensions and the team can point you to the right seal, whether it carries the DBH name or is another compatible option. Guidance on the A 128 design and its variants is available as well, based on the lubricant and the operating conditions of your equipment.

To request a quote for the DBH 9221 oil seal, message the part number to MR Industrial Accessories. If the application is unclear, include a photo of the housing along with the shaft dimensions. The technical team will confirm the correct part and answer questions about seals and oil seals.