The TROSTEL 3.188x5.004x0.469 M/L LEATHER Oil Seal is engineered for industrial applications where conventional rubber oil seals may not provide sufficient durability under severe environmental conditions.

Unlike standard elastomer seals, the genuine leather sealing lip absorbs lubricant and continuously forms a natural lubrication film between the shaft and sealing surface. This characteristic helps reduce friction, minimize shaft wear, and maintain sealing efficiency in dusty, abrasive, and contaminated environments. Leather oil seals continue to be widely used in legacy industrial equipment, mining machinery, agricultural equipment, and heavy rotating machinery where contamination resistance is a critical requirement.

The M/L (Metal Case / Leather Lip) construction combines a heavy-duty carbon steel outer shell with a genuine leather sealing element, providing exceptional structural strength and long-term sealing reliability. The metal case ensures secure housing retention while the leather lip delivers superior sealing performance in harsh operating conditions.

With dimensions of 3.188 x 5.004 x 0.469 inch, this seal is commonly used in industrial gearboxes, crushers, conveyors, agricultural machinery, mining equipment, heavy-duty pumps, and imported industrial machinery operating under severe service conditions.

⚙️ Applications

• Industrial gearbox
• Mining machinery
• Agricultural equipment
• Heavy-duty pumps
• Conveyor systems
• Crushers
• Construction machinery
• Industrial rotating equipment
• Imported inch-size machinery
• OEM industrial equipment

🎯 Benefits

✔ Excellent oil retention

✔ Superior dust exclusion

✔ Natural self-lubricating properties

✔ Extend shaft and bearing life

✔ Reduce maintenance costs

✔ Suitable for harsh industrial environments

✔ Excellent contamination resistance

✔ Long service life

🧠 Technical Insight

• Genuine leather absorbs oil and creates a lubrication film
• Excellent performance in dusty environments
• Carbon steel case improves structural rigidity
• Suitable for oil and grease lubrication
• Traditional sealing solution for legacy equipment
• Commonly used in mining and agricultural machinery
• Leather sealing material remains effective in contaminated operating environments

✅ Key Features

• Genuine Leather Sealing Lip
• M/L Heavy Duty Construction
• Carbon Steel Outer Case
• Superior Contamination Protection
• Natural Lubrication Properties
• OEM Replacement Ready
• Long Service Life

📊 Specifications

Brand: TROSTEL

Model: M/L

Size: 3.188 x 5.004 x 0.469 inch

Type: Leather Rotary Shaft Oil Seal

Material: Genuine Leather

Outer Case: Carbon Steel

Shaft Diameter (ID): 3.188 inch

Housing Diameter (OD): 5.004 inch

Width: 0.469 inch

Application Class: Heavy Industrial Service

🔁 Equivalent

Suitable replacement for:

SKF Leather Seal

CR Leather Seal

Chicago Rawhide Leather Seal

National Leather Seal

Garlock Leather Seal

Timken Leather Seal

Federal Mogul Leather Seal

(Always verify dimensions and seal profile before ordering.)

📦 Availability

✅ In Stock

🚚 Fast Delivery Available

📦 MOQ: 1 Piece

📲 Contact via LINE ID: dusitrea

🏭 Suitable for industrial maintenance and OEM replacement