The STEMCO 4.000x5.005x1.125 M/L Leather Oil Seal is engineered for heavy-duty rotating equipment requiring exceptional durability and reliable sealing performance. It is particularly suitable for truck wheel hubs, industrial machinery, mining equipment, agricultural machinery, construction equipment, and restoration projects where traditional leather sealing technology is preferred.

The M/L Profile combines a reinforced steel outer case with a genuine leather sealing lip. This proven design has been trusted for decades in heavy-duty industrial and transportation applications because of its ability to maintain effective sealing under demanding operating conditions.

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

The leather sealing lip also conforms naturally to shaft surfaces, making it ideal for shafts with slight wear or surface imperfections. It performs exceptionally well in dusty, muddy, and abrasive environments where leather technology has traditionally demonstrated superior durability.

The reinforced steel case ensures excellent dimensional stability and secure housing retention while the leather sealing element effectively retains oil and grease, protecting bearings and rotating components from contamination and premature wear.

With dimensions of 4.000 × 5.005 × 1.125 inch, this oil seal is commonly installed in truck wheel hubs, industrial gearboxes, mining machinery, agricultural equipment, construction machinery, heavy-duty pumps, conveyor systems, and OEM rotating equipment utilizing inch-size shaft systems.

⚙️ Applications

• Truck wheel hubs
• Trailer axle assemblies
• Industrial gearboxes
• Industrial pumps
• Mining equipment
• Construction machinery
• Agricultural machinery
• Conveyor systems
• Heavy industrial machinery
• OEM machinery

🎯 Benefits

✔ Genuine leather sealing technology

✔ Excellent lubricant retention

✔ Outstanding wear resistance

✔ Suitable for worn shaft surfaces

✔ Excellent performance 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 Heavy-Duty Industrial Applications
• Traditional Heavy-Duty Sealing Solution

✅ Key Features

• STEMCO Heavy Duty Quality
• M/L Leather Profile
• Genuine Leather Sealing Lip
• Reinforced Steel Case
• Excellent Wear Resistance
• Suitable for Restoration Projects
• OEM Replacement Ready
• Long Service Life

📊 Specifications

Brand: STEMCO

Model: M/L

Size: 4.000 × 5.005 × 1.125 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): 5.005 inch

Width: 1.125 inch

Lubrication: Oil & Grease

Application Class: Heavy Duty Industrial & Transportation Service

Standard: Inch Size Oil Seal

🔁 Equivalent

Suitable replacement for:

• SKF Leather Oil Seal
• CR Chicago Rawhide Leather Seal
• National Leather Oil Seal
• Garlock Leather Seal
• TROSTEL Leather Oil Seal
• SCHNIEDER Leather Oil 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 truck axle maintenance, wheel hub overhaul, industrial gearbox repair, heavy-duty pump maintenance, machinery restoration, 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