The Timken Company LER151 Triple Labyrinth Seal

Description:

The Torrington Timken LER151 aluminum ring is a precision labyrinth triple-ring seal designed for mounted spherical roller bearing housings to help retain lubricant while preventing the ingress of dust, dirt, and other contaminants. Manufactured from lightweight aluminum, this sealing ring is commonly installed in industrial gearboxes, conveyors, mining equipment, construction machinery, agricultural equipment, and power transmission systems where reliable bearing protection is essential for extended equipment life. Maintenance teams, OEMs, and system integrators specify the LER151 aluminum ring for equipment repair, replacement, machine rebuilds, and retrofits to improve sealing performance and reduce bearing maintenance in harsh operating environments.

Applications:

The Torrington Timken LER151 aluminum labyrinth seal is engineered for mounted spherical roller bearing assemblies operating in demanding industrial environments. It is widely used on industrial gear reducers, heavy-duty conveyors, mining and aggregate equipment, construction machinery, agricultural equipment, and power transmission systems where its triple-ring labyrinth design minimizes contaminant entry and lubricant loss, helping maximize bearing reliability and service life.

Technical Specifications:

• Manufacturer: Timken (formerly Torrington)
• Manufacturer Part Number (MPN): LER151
• Product Type: Labyrinth seal ring
• Bearing Type: Triple-ring labyrinth seal accessory
• Series: LER
• Design Series: LER Triple Ring Seal
• Inside Diameter: 6.625 in (168.28 mm)
• Outside Diameter: 7.388 in (187.66 mm)
• Overall Width: 1.000 in (25.40 mm)
• Material: Aluminum
• Seal Type: Triple-ring labyrinth seal
• Compatible Housing: SRB HU-SAF mounted bearing units
• Weight: Manufacturer not specified
• Compatible Bearing/Housing: Timken HU-SAF spherical roller bearing housings using LER151 seals

Common Replacements:

• Timken LER151 labyrinth seal
• Dodge equivalent labyrinth seal
• SKF SAF housing labyrinth seal equivalent