The AEROQUIP 4.000x5.256x0.500 M/L Leather Oil Seal is engineered for industrial rotating equipment requiring durable sealing performance and traditional leather sealing technology.

The M/L Profile combines a reinforced steel outer case with a genuine leather sealing lip. This proven design has been widely used in industrial machinery, agricultural equipment, pumps, compressors, and heavy-duty rotating systems because of its ability to conform naturally to shaft surfaces while maintaining reliable sealing performance.

Unlike conventional synthetic rubber seals, genuine leather absorbs lubricating oil and creates a natural lubrication film between the sealing lip and shaft surface. This characteristic helps reduce friction, minimize wear, and maintain sealing efficiency during long-term operation.

Leather oil seals are particularly suitable for equipment originally designed with leather sealing technology. They perform exceptionally well in dusty, dirty, and poorly lubricated environments where traditional leather seals have historically provided superior durability and service life.

The reinforced steel case provides dimensional stability and secure housing retention while the leather sealing element maintains effective lubricant retention and contamination protection.

With dimensions of 4.000 x 5.256 x 0.500 inch, this seal is commonly used in industrial pumps, gearboxes, agricultural machinery, compressors, mining equipment, conveyor drives, and OEM equipment utilizing inch-size shaft systems.

⚙️ Applications

• Industrial gearboxes
• Industrial pumps
• Agricultural machinery
• Air compressors
• Mining equipment
• Conveyor systems
• Power transmission equipment
• Heavy industrial machinery
• Restoration projects
• OEM machinery

🎯 Benefits

✔ Genuine leather sealing technology

✔ Excellent lubricant retention

✔ Outstanding wear resistance

✔ Suitable for worn shaft surfaces

✔ Performs well in dusty environments

✔ Long service life

✔ Ideal for machinery restoration

✔ Reliable oil and grease sealing

✔ Maintain original equipment specifications

🧠 Technical Insight

• M/L Metal Case + Leather Lip Design
• Genuine leather sealing element
• Reinforced steel case construction
• Self-lubricating leather technology
• Suitable for oil and grease lubrication
• Excellent shaft conformability
• Designed for harsh industrial environments
• Traditional heavy-duty sealing solution

✅ Key Features

• AEROQUIP Industrial Quality
• M/L Leather Seal Design
• Genuine Leather Sealing Lip
• Reinforced Steel Case
• Excellent Wear Resistance
• Suitable for Restoration Projects
• OEM Replacement Ready
• Long Service Life

📊 Specifications

Brand: AEROQUIP

Model: M/L

Size: 4.000 x 5.256 x 0.500 inch

Type: Leather Rotary Shaft Oil Seal

Material: Genuine Leather

Case Material: Steel

Profile: M/L

Construction: Metal Case + Leather Lip

Shaft Diameter (ID): 4.000 inch

Housing Diameter (OD): 5.256 inch

Width: 0.500 inch

Lubrication: Oil & Grease

Application Class: Heavy Industrial Service

Standard: Inch Size Oil Seal

🔁 Equivalent

Suitable replacement for:

• SKF Leather Oil Seal
• CR Chicago Rawhide Leather Seal
• National Leather Seal
• SCHNEIDER Leather Seal
• REPCO Leather Seal
• Garlock Leather Seal
• Federal-Mogul Leather Seal
• OEM Leather Oil Seal

(Always verify dimensions and seal profile before ordering.)

📦 Availability

✅ In Stock

🚚 Fast Delivery Available

🌎 Worldwide Shipping Available

📦 MOQ: 1 Piece

🏭 Suitable for industrial maintenance, machinery restoration, gearbox repair, pump overhaul, mining equipment service, and OEM replacement applications

📲 Contact via LINE ID: dusitrea

📧 Email: sales@seal4go.com

💬 Technical support available before ordering

🔍 Assistance available for cross-reference and equivalent part identification