DBH 8780 radial shaft seal — 17 x 29 x 5

DBH 8780 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 8780 and any equivalents.

Code 8780 identifies a DBH radial shaft seal built for a 17 mm shaft, a 29 mm housing bore and a 5.00 mm height, in the Lx design. The lip runs against the rotating shaft while the outer diameter seats in the housing, so lubricant stays inside the assembly and outside contamination stays out. Equipment such as gearboxes, pumps, electric motors and other power transmission drives commonly uses a seal in this size range.

Reading the code is straightforward: 8780 is the DBH reference, and the three figures that follow in the data sheet describe the bore it serves. Shaft 17 mm, housing 29 mm, width 5.00 mm, Lx lip configuration. Matching all three measurements to the worn part is what keeps the fit correct, since a seal that is right on two dimensions and off on the third will not seat or seal properly.

Seals of this size turn up on smaller transmission shafts. Electric motors, centrifugal pumps, gearboxes, compressors, machine tools and process equipment are the usual homes for them, and the same applies to agricultural implements and conveyor lines. The job does not change from one machine to the next: hold the oil or grease in, keep dust and water out, and protect the bearings and gears behind the seal.

Before fitting a replacement, inspect the shaft for burrs, scoring or a worn groove, and check that the housing bore is clean and free of dents. Apply lubricant to the lip, then press the seal in square to the shaft so it does not distort. Rotation speed, operating temperature and the lubricant in use all influence which seal is the right choice; where the shaft shows a deep groove, a lip in a different position or a wear sleeve is worth discussing with us.

If code 8780 does not match what you pulled out, send the shaft, housing and height measurements along with a photo of the old seal. We review the DBH line and the other alternatives we carry to find a compatible option, and we can also flag it if the original part has unusual geometry or the mounting space is tight.

Quotes are handled by WhatsApp or email. Send the code 8780 or the dimensions 17 x 29 x 5 mm and our team comes back with purchasing options. If you want to confirm the seal suits your equipment before ordering, or you have questions about installation, we can validate it with you first.