DBH 8370/85 radial shaft seal — 27 x 39 x 5

DBH 8370/85 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 8370/85 and any equivalents.

A radial shaft seal from the DBH line, the 8370/85 keeps lubricant where it belongs and blocks dust and moisture from reaching the bearing cavity. It fits a 27 mm shaft inside a 39 mm housing bore, with a 5 mm overall width. The Lz lip carries a spring, so contact on the shaft stays steady through rotation. This is a practical choice when the axial room around the shaft is tight but sealing still has to hold up.

Reading the code tells you most of what you need: 8370/85 pairs with the three measurements above, and Lz identifies the lip style. The sealing element is an oil- and grease-resistant elastomer, backed by an outer metal case that presses into the housing bore. That case is what holds the seal square and keeps it from walking once the shaft spins.

Typical homes for this size include gearboxes, pumps, electric motors, compressors, belt and chain drives, machine tools, industrial washers and conveyors. In each of those, the seal separates the lubricated side from the outside environment. Clean oil and a clean interior are what let the bearings and mating parts reach their expected service life, especially where moderate shaft speeds and dusty or damp conditions are normal.

Before pressing a new seal in, look at the shaft for burrs, scoring or wear and make sure the bore is clean and undistorted. Put a light film of lubricant on the lip, then seat the seal with a proper driver, keeping pressure even around the outer ring. When you pick a replacement, weigh peripheral speed, running temperature and the fluid being retained. If the old seal was leaking, inspect the shaft surface and the adjacent bearing at the same time.

Need the same dimensions or something close? Send the code 8370/85, or simply 27 x 39 x 5 mm, over WhatsApp or email and the team will come back with options. Equivalents from other brands are available, and the selection can be matched to your shaft and bore measurements. This DBH seal is one of the brands MR supplies; if compatibility with your machine is unclear, a quick message is usually enough to sort it out.