The HUMPHREY 3.125x4.054x0.500 TCN NBR Oil Seal is engineered for rotary shaft applications requiring dependable sealing performance, lubricant retention, and protection against environmental contaminants.

The TCN Profile utilizes a double-lip sealing configuration consisting of a spring-loaded primary sealing lip and an auxiliary dust lip. This design provides superior protection against lubricant leakage while preventing dust, dirt, moisture, and abrasive particles from entering the equipment. The additional dust lip helps protect bearings, shafts, gears, and other critical components from premature wear.

The reinforced metal case construction ensures secure housing retention and excellent dimensional stability under vibration, shock loading, and continuous-duty operation. The garter spring maintains constant radial pressure against the shaft surface, helping preserve sealing effectiveness throughout the service life of the seal.

Manufactured from premium NBR (Nitrile Butadiene Rubber), the sealing element offers excellent resistance to lubricating oils, hydraulic fluids, gear oils, grease, and petroleum-based lubricants. NBR is one of the most widely used industrial sealing materials due to its excellent balance of oil resistance, wear resistance, flexibility, and economical performance.

With dimensions of 3.125 x 4.054 x 0.500 inch, this seal is commonly found in industrial pumps, gearboxes, agricultural machinery, compressors, hydraulic equipment, conveyor systems, and imported machinery utilizing inch-size shaft systems.

⚙️ Applications

• Industrial pumps
• Industrial gearboxes
• Hydraulic equipment
• Agricultural machinery
• Air compressors
• Conveyor systems
• Speed reducers
• Construction equipment
• Power transmission systems
• OEM industrial machinery

🎯 Benefits

✔ Excellent oil retention

✔ Dual-lip contamination protection

✔ Prevent dust and moisture ingress

✔ Extend bearing and shaft life

✔ Reduce lubricant leakage

✔ Lower maintenance costs

✔ Reduce machine downtime

✔ Improve equipment reliability

✔ Suitable for continuous-duty operation

🧠 Technical Insight

• TCN Double Lip Design
• Spring-loaded primary sealing lip
• Auxiliary dust protection lip
• Reinforced metal case construction
• Constant radial sealing pressure
• Suitable for oil and grease lubrication systems
• NBR provides excellent oil resistance
• Designed for industrial heavy-duty applications

✅ Key Features

• HUMPHREY Industrial Quality
• TCN Double Lip Design
• Reinforced Metal Case
• Premium NBR Material
• Spring Loaded Main Lip
• Dust Protection Lip
• OEM Replacement Ready
• Long Service Life

📊 Specifications

Brand: HUMPHREY

Model: TCN

Size: 3.125 x 4.054 x 0.500 inch

Type: Double Lip Rotary Shaft Oil Seal

Material: NBR (Nitrile Rubber)

Profile: TCN

Construction: Reinforced Metal Case

Lip Design: Main Lip + Dust Lip

Spring Type: Garter Spring

Shaft Diameter (ID): 3.125 inch

Housing Diameter (OD): 4.054 inch

Width: 0.500 inch

Lubrication: Oil & Grease

Application Class: Heavy Industrial Service

Standard: Inch Size Oil Seal

🔁 Equivalent

Suitable replacement for:

• SKF TCN Oil Seal
• CR Chicago Rawhide Oil Seal
• National Oil Seal
• NOK TC Oil Seal
• CFW Rotary Shaft Seal
• KACO Oil Seal
• DICHTOMATIK Oil Seal
• TRELLEBORG Rotary 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 overhaul, OEM replacement, and repair workshop applications

📲 Contact via LINE ID: dusitrea

📧 Email: sales@seal4go.com

💬 Technical support available before ordering

🔍 Assistance available for cross-reference and equivalent part identification