DBH 9561 radial shaft seal — 31 x 50 x 8

DBH 9561 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 9561 and any equivalents.

A radial shaft seal in the DBH line, the 9561 closes the gap between a rotating shaft and its housing so lubricant stays in and contaminants stay out. Its Lx design uses a single spring-loaded lip, and the size it covers is shaft 31 mm, bore 50 mm, overall height 8.00 mm. Maintenance and purchasing teams order it as a replacement seal for gearboxes, pumps and motors.

Reading the code is straightforward. The 9561 designation identifies this particular size in the DBH range, and the three figures that matter on the drawing are d = 31 mm for the shaft, D = 50 mm for the housing bore and h = 8.00 mm for the width. The Lx configuration means one sealing lip with a spring behind it, which is the usual choice for shafts that turn continuously and are lubricated on a regular basis. The elastomeric lip rides against the shaft while the metal case is pressed into the 50 mm bore, so the seal works as a complete barrier at that joint.

You will find this size in gearboxes and reducers, centrifugal pumps, electric motors, compressors and other transmission assemblies. In every case the job is the same: hold the oil or grease where it belongs and keep dust, water and particles from working their way in. Equipment used in agriculture, road work and material handling also relies on seals of this size, since those environments put grit and moisture against the shaft every day.

Before pressing a new seal in, look over the shaft for burrs, nicks or a worn groove and make sure the bore is clean and round. Put a light film of lubricant on the lip, then drive the seal in with a tube that pushes on the metal case only, never on the lip itself. When you choose a seal, the deciding factors are shaft speed, operating temperature and the lubricant in use. If the shaft has picked up a deep groove, a repair sleeve is worth considering instead of fitting a seal over the damage.

If you are not sure this is the right size, send the 9561 code or the 31 x 50 x 8 mm dimensions and we will help you match it. A photo of the old part or the housing drawing works just as well. We can also look at equivalents within the DBH line and other brands we supply, and where there is room in the assembly, evaluate alternatives from the same category.

To get a quote on the DBH 9561 oil seal, message us on WhatsApp with the code and the quantity you need. We will confirm the quote and, if this size does not suit your equipment, suggest other options. This seal is part of our catalog of seals and oil seals for industrial maintenance.