10-55-1 - Unitized Oil Seal

The 10-55-1 Unitized Oil Seal is built for high-capacity trailer axles and oil-bath hub systems. Its integrated wear sleeve and dual-lip design provide a superior seal, reduce spindle wear, and keep contaminants out. This heavy-duty, pre-assembled seal is ideal for long-haul and industrial applications where durability and leak prevention are essential.

Features:

• Unitized construction combines the seal and wear ring into one assembly
• Dual sealing lips provide maximum protection against oil leakage and debris intrusion
• Engineered for oil-lubricated hubs and high-load trailer axles
• Made of durable nitrile rubber bonded to a steel casing
• Pre-lubricated for ease of installation and reduced wear during startup

Specifications:

• Part Number: 10-55-1
• Seal Type: Unitized oil seal
• Inner Diameter (ID): 2.875″
• Outer Diameter (OD): 3.880″
• Width: 0.500″
• Material: Nitrile rubber with steel wear sleeve
• Temperature Range: –40°F to 250°F (–40°C to 121°C)
• Application: Oil-bath trailer hubs, heavy-duty axle systems, and industrial machinery

Fitment:

• Fits spindles with 2.875″ OD and hub bores of 3.880″
• Commonly used on 10,000–12,000 lb trailer axles with oil-lubricated hubs
• Compatible with Dexter®, Lippert®, and other heavy-duty axle systems
• Always confirm dimensions to ensure compatibility with your specific hub assembly