The Timken Company LER151 Triple Labyrinth Seal

Timken LER151 is a lightweight aluminum triple-ring labyrinth seal designed for Timken SRB HU-SAF mounted spherical roller bearing housings to retain lubricant while preventing the ingress of dust, dirt, and other contaminants. The seal’s dimensions are inside diameter 6.625 in (168.28 mm), outside diameter 7.388 in (187.66 mm), and overall width 1.000 in (25.40 mm). It is part of the LER series and serves as a compatible accessory for Timken HU-SAF spherical roller bearing housings, with the LER151 designed to boost sealing performance in harsh industrial environments. Common applications include industrial gear reducers, heavy-duty conveyors, mining and aggregate equipment, construction machinery, agricultural equipment, and power transmission systems, where its triple-ring design helps maximize bearing life and reduce lubricant loss during repairs, replacements, machine rebuilds, and retrofits. Compatible replacements include Timken LER151 labyrinth seal and equivalents from Dodge and SKF for SAF housing labyrinth seals.