DBH 8490 radial shaft seal — 40 x 58 x 11.3

DBH 8490 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 8490 and any equivalents.

The DBH 8490 is a radial shaft seal that keeps lubricant where it belongs and keeps dust, water and chips out of rotating assemblies. It presses into the housing and rides on the shaft, with a 40 mm shaft diameter, a 58 mm housing diameter and an 11.30 mm height. Seals like this one play a quiet but important role in holding lubrication in place and keeping bearings and gears running properly.

The lip is an elastomer compound built to stand up to oils and greases, and behind it sits a metal case that holds its shape under pressing force and normal running conditions. The design is listed as A 075. Anyone working from a drawing or an existing seal only needs to match the three figures: shaft 40 mm, housing 58 mm, height 11.30 mm.

Typical homes for this seal include gearboxes, pumps, electric motors, compressors and power transmission equipment, as well as the conveyors, production lines and agricultural or road machines those parts sit in. Its job is two-way: hold the oil or grease inside the assembly, and block outside matter from reaching the bearing or gear. Seals that stop doing that job are a common cause of contamination failures and early wear.

Installation rewards a little care. Check that the shaft and housing bore are clean and free of burrs or scratches, then coat the lip with the same oil or grease the equipment uses. Drive the seal in square to the shaft and press it evenly down to the bottom of the bore, without hammering on the lip itself. If the shaft surface is worn, an auxiliary lip or a wear sleeve is worth considering to keep the joint tight.

When you contact us, the part number 8490 or the dimensions 40x58x11.30 are enough for us to identify what you need. If a close variant fits your equipment better, we can point you to equivalents and help you choose. We can also advise on lip material and spring type based on the temperature and speed your equipment runs at.

MR Industrial Accessories LLC supplies sealing, power transmission and bearing components to customers throughout the United States and in several Latin American countries. Send the part number by WhatsApp or email and our team will get back to you promptly.