The REPCO 4.000x5.375x0.500 M/L Leather Oil Seal is engineered for industrial rotating equipment requiring durable sealing performance and traditional leather sealing technology. It is particularly suitable for heavy-duty machinery originally equipped with leather oil seals, restoration projects, mining equipment, agricultural machinery, and OEM rotating systems.

The M/L Profile combines a reinforced steel outer case with a genuine leather sealing lip. This proven construction has been widely used in industrial pumps, gearboxes, compressors, conveyors, and heavy rotating machinery because of its excellent sealing characteristics and long service life.

Unlike conventional synthetic rubber seals, genuine leather naturally absorbs lubricating oil and forms a microscopic lubrication film between the sealing lip and rotating shaft. This self-lubricating characteristic reduces friction, minimizes shaft wear, and extends the operating life of both the oil seal and shaft.

Leather sealing lips also conform exceptionally well to shaft surfaces, making them ideal for shafts with minor wear or surface imperfections. They perform exceptionally well in dusty, muddy, and abrasive environments where leather technology has traditionally outperformed conventional elastomer seals.

The reinforced steel case provides excellent dimensional stability and secure housing retention while the leather sealing element effectively retains oil and grease and prevents external contaminants from entering the equipment.

With dimensions of 4.000 × 5.375 × 0.500 inch, this oil seal is commonly installed in industrial pumps, heavy-duty gearboxes, mining equipment, agricultural machinery, compressors, conveyor systems, restoration projects, and OEM rotating 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
• Machinery restoration projects
• OEM machinery

🎯 Benefits

✔ Genuine leather sealing technology

✔ Excellent lubricant retention

✔ Outstanding wear resistance

✔ Suitable for worn shaft surfaces

✔ Performs exceptionally well in dusty environments

✔ Long service life

✔ Ideal for machinery restoration

✔ Reliable oil and grease sealing

✔ Maintains 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 & Grease Lubrication
• Excellent Shaft Conformability
• Designed for Harsh Industrial Environments
• Traditional Heavy-Duty Sealing Solution

✅ Key Features

• REPCO 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: REPCO

Model: M/L

Size: 4.000 × 5.375 × 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): 5.375 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 Oil Seal
• SCHNIEDER Leather Oil Seal
• TROSTEL Leather Oil Seal
• Garlock Leather Seal
• Federal-Mogul Leather Oil Seal
• OEM Leather Rotary Shaft 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 overhaul, pump repair, 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