DBH 5548Sil radial shaft seal — 49.5 x 66.6 x 6.35

DBH 5548Sil 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 5548Sil and any equivalents.

When a rotating shaft needs its lubricant kept in and outside contamination kept out, a radial lip seal such as the DBH 5548Sil does that job. Its three controlling measurements are a 49.5 mm shaft, a 66.6 mm housing bore and a 6.35 mm overall height, and it carries the Mt design. Maintenance and purchasing teams use it on gearboxes, pumps, motors and other industrial drives where the seal sits in a narrow axial space.

Reading the reference is the fastest way to avoid a wrong pick at the counter. The 5548Sil portion of the code pins down one specific size inside the DBH line, so it should not be swapped with another variant from the same family. The Mt designation describes how the seal is built: a sealing lip combined with a metal outer body, which is what allows it to be pressed into a cylindrical housing bore.

Three figures decide whether the part fits: shaft 49.5 mm, housing 66.6 mm, height 6.35 mm. Compare all three against the worn seal or the drawing before ordering, since a mismatch on any one of them will cause leaks or a loose fit. Ordering by the 5548Sil code alone is fine as long as the size is confirmed.

Where you will see it working: gearboxes, centrifugal pumps, electric motors, rollers and transmission equipment. In each of those spots the seal holds oil or grease on the lubricated side and keeps dust, water and particles out. On drives that see vibration or moderate temperatures, that protection is what keeps bearings and gears from failing early.

Fitting matters as much as selection. Use the right drivers, coat the lip before pressing it in, and keep the lip free of nicks or cuts. Shaft runout and the finish of the shaft surface both influence how well the lip seals, so check the tolerances the manufacturer calls out for the application.

Need a cross to another brand, or unsure which seal matches your equipment? Send code 5548Sil, or the shaft and housing dimensions you measured, over WhatsApp or email. Our team replies promptly, suggests equivalents and helps you confirm the choice.