The UNIVERSAL 2.500x3.068x0.563 M/R NBR Oil Seal is engineered for industrial rotating equipment requiring dependable sealing performance, long service life, and reliable protection against lubricant leakage and external contamination.

The M/R Profile is a traditional industrial rotary shaft seal design consisting of a reinforced steel outer case and a spring-loaded sealing lip. The metal case provides excellent dimensional stability and secure housing retention, while the garter spring continuously applies radial force to the sealing lip, ensuring consistent contact pressure against the shaft throughout operation. Rotary shaft seals commonly use spring-loaded lips to compensate for wear and maintain sealing performance.

This design effectively retains lubricating oil and grease inside equipment while preventing dust, dirt, moisture, and abrasive particles from entering the system. Proper sealing helps protect bearings, shafts, gears, and rotating components from premature wear and contamination, extending equipment life and reducing maintenance costs. Seal-related failures are a significant contributor to rotating equipment reliability issues, making proper seal selection critical.

Manufactured from premium NBR (Nitrile Butadiene Rubber), this seal offers excellent resistance to mineral oils, hydraulic fluids, gear oils, lubricating greases, diesel fuel, and petroleum-based lubricants. NBR remains one of the most widely used sealing materials because of its excellent oil resistance, wear resistance, flexibility, and cost-effective performance.

The spring-loaded lip design also compensates for minor shaft wear and eccentricity, helping maintain sealing efficiency over extended operating periods. This makes the seal particularly suitable for pumps, gearboxes, reducers, compressors, agricultural equipment, and heavy-duty industrial machinery where dependable sealing performance is essential.

With dimensions of 2.500 x 3.068 x 0.563 inch, this oil seal is commonly used in industrial pumps, speed reducers, gearboxes, conveyor systems, compressors, agricultural machinery, and OEM equipment utilizing inch-size shaft systems.

⚙️ Applications

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

🎯 Benefits

✔ Excellent oil retention performance

✔ Protects bearings and shafts

✔ Reduces lubricant leakage

✔ Excellent wear resistance

✔ Long service life

✔ Suitable for continuous-duty operation

✔ Reduces maintenance costs

✔ Reliable industrial sealing performance

✔ Compatible with oil and grease lubrication

🧠 Technical Insight

• M/R Metal Case Design
• Spring Loaded Main Lip
• Reinforced Steel Construction
• Oil & Grease Compatible
• Excellent Oil Resistance
• Suitable for Rotary Equipment
• Reliable Shaft Protection
• Heavy Industrial Duty Performance

✅ Key Features

• UNIVERSAL Industrial Quality
• M/R Profile Design
• Reinforced Metal Case
• Premium NBR Material
• Spring Loaded Sealing Lip
• Excellent Wear Resistance
• OEM Replacement Ready
• Long Service Life

📊 Specifications

Brand: UNIVERSAL

Model: M/R

Size: 2.500 x 3.068 x 0.563 inch

Type: Rotary Shaft Oil Seal

Material: NBR (Nitrile Rubber)

Profile: M/R

Construction: Metal Case

Lip Design: Spring Loaded Main Lip

Spring Type: Garter Spring

Shaft Diameter (ID): 2.500 inch

Housing Diameter (OD): 3.068 inch

Width: 0.563 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 Metal Case Oil Seal
• CR Chicago Rawhide Oil Seal
• National Oil Seal
• Freudenberg Oil Seal
• NOK Oil Seal
• CFW Rotary Shaft Seal
• KACO Oil Seal
• Dichtomatik Oil Seal
• Garlock Oil Seal
• OEM 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 gearbox overhaul, pump repair, reducer maintenance, compressor service, agricultural machinery repair, 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