Timken 455556 Single Lip Oil Seal

Description:

The Timken 455556 is a single-lip oil seal designed to retain lubricants and prevent dirt, moisture, and other contaminants from entering rotating shaft systems. It is commonly installed in industrial gearboxes, pumps, electric motors, conveyor systems, heavy-duty equipment, and power transmission machinery operating in demanding environments. Maintenance teams, OEMs, and industrial repair specialists use this oil seal for equipment replacement, rebuilds, retrofits, and preventive maintenance to improve sealing performance and extend component service life.

Applications:

The Timken 455556 oil seal is used in rotating equipment where reliable shaft sealing is essential for protecting bearings and lubricated components. It is widely applied in industrial gearboxes, pumps, electric motors, conveyor systems, manufacturing equipment, mining machinery, and general power transmission systems to reduce lubricant leakage, prevent contaminant ingress, and maintain dependable equipment operation.

Technical Specifications:

• Manufacturer Part Number (MPN): 455556
• Manufacturer: Timken
• Brand: National
• Product Type: Oil Seal
• Series: 450000
• Seal Type: Single Lip with Spring
• Design Type: Type 45
• Material: Nitrile (NBR)
• Lip Material: Nitrile Rubber (NBR)
• Durometer: 60 to 80
• Construction: Solid with Inner Case
• Measurement System: Inch
• Shaft Diameter (ID): 2.875 in (73.03 mm)
• Outside Diameter (OD): 4.381 in (111.28 mm)
• Overall Width: 0.625 in (15.88 mm)
• Maximum Shaft Surface Speed: 3000 ft/min
• Misalignment Tolerance: 0.015 in at 800 rpm; 0.010 in at 4200 rpm
• Continuous Operating Temperature: -40°F to 225°F (-40°C to 107°C)
• Weight: 0.60 lb
• Typical Applications: General Purpose Rotating Equipment

Common Replacements:

• SKF Equivalent Oil Seal
• CR (Chicago Rawhide) Equivalent Oil Seal
• National 450000 Series Oil Seal