The HUMPHREY 2.875x4.004x0.750 M/F Fabric Oil Seal is engineered for heavy-duty rotating equipment operating under severe industrial conditions where conventional rubber oil seals may not provide sufficient durability. It is particularly suitable for industrial machinery, mining equipment, agricultural machinery, construction equipment, and restoration projects requiring traditional fabric-reinforced sealing technology.

The M/F Profile combines a reinforced steel outer case with a fabric-reinforced sealing element. This proven construction has been widely used in heavy-duty industrial applications because fabric reinforcement significantly improves mechanical strength, abrasion resistance, and sealing stability under continuous operation.

Compared with conventional rubber seals, fabric-reinforced oil seals provide improved resistance to shaft vibration, shock loading, and abrasive operating environments. The reinforced sealing element maintains sealing performance while reducing lip deformation during extended service.

The reinforced steel case ensures dimensional stability and secure housing retention, while the fabric-reinforced sealing lip effectively retains lubricants and protects internal components from dust, dirt, moisture, and other contaminants.

Manufactured using premium NBR (Nitrile Butadiene Rubber) with fabric reinforcement, the seal offers excellent resistance to:

• Mineral oils
• Gear oils
• Hydraulic oils
• Lubricating grease
• Petroleum-based lubricants

With dimensions of 2.875 × 4.004 × 0.750 inch, this oil seal is commonly installed in industrial pumps, heavy-duty gearboxes, mining machinery, agricultural equipment, compressors, conveyor drives, construction machinery, and OEM rotating equipment utilizing inch-size shaft systems.

⚙️ Applications

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

🎯 Benefits

✔ Fabric reinforced heavy-duty construction

✔ Excellent oil retention

✔ Outstanding wear resistance

✔ Superior mechanical strength

✔ Excellent resistance to vibration

✔ Suitable for harsh environments

✔ Long service life

✔ OEM quality replacement

✔ Reduces maintenance costs

🧠 Technical Insight

• M/F Fabric Reinforced Design
• Reinforced Steel Case
• Fabric Reinforced Sealing Lip
• Premium NBR Material
• Excellent Oil Resistance
• Oil & Grease Compatible
• Designed for Heavy Industrial Service
• High Durability Construction

✅ Key Features

• HUMPHREY Industrial Quality
• M/F Fabric Profile
• Reinforced Fabric Construction
• Reinforced Steel Case
• Premium NBR Material
• Excellent Wear Resistance
• OEM Replacement Ready
• Long Service Life

📊 Specifications

Brand: HUMPHREY

Model: M/F

Size: 2.875 × 4.004 × 0.750 inch

Type: Fabric Reinforced Rotary Shaft Oil Seal

Material: NBR (Nitrile Butadiene Rubber)

Reinforcement: Industrial Fabric

Case Material: Steel

Profile: M/F

Construction: Metal Case + Fabric Reinforced Lip

Shaft Diameter (ID): 2.875 inch

Housing Diameter (OD): 4.004 inch

Width: 0.750 inch

Pressure Capability: Up to 0.5 Bar

Lubrication: Oil & Grease

Temperature Range: -40°C to +100°C

Application Class: Heavy Industrial Service

Standard: Inch Size Oil Seal

🔁 Equivalent

Suitable replacement for:

• SKF Fabric Oil Seal
• CR Chicago Rawhide Fabric Seal
• National Fabric Oil Seal
• Garlock Fabric Seal
• SCHNIEDER Fabric Seal
• TROSTEL Fabric Seal
• Federal-Mogul Fabric Seal
• OEM Fabric Reinforced 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, gearbox overhaul, pump repair, mining equipment service, heavy machinery maintenance, 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