The STEFA 2.125x3.194x0.500 DB NBR Oil Seal is engineered for industrial rotating equipment requiring sealing capability in both rotational directions and enhanced media separation.

The DB Profile is a specialized double-lip oil seal design that incorporates two opposing sealing lips. Unlike conventional oil seals that primarily retain lubricant and exclude contamination from one side, the DB design is intended to separate two media or provide sealing effectiveness from both directions of the shaft. This makes it suitable for gearboxes, reducers, transfer cases, mixers, and industrial rotating equipment where bi-directional sealing performance is required.

Manufactured from premium NBR (Nitrile Butadiene Rubber), the sealing element offers excellent resistance to lubricating oils, hydraulic fluids, gear oils, and grease. NBR remains one of the most widely used sealing materials in industrial applications due to its excellent oil resistance, wear resistance, flexibility, and cost-effectiveness.

The reinforced metal case provides dimensional stability and secure retention within the housing while the dual-lip configuration enhances sealing reliability for demanding industrial environments.

With dimensions of 2.125 x 3.194 x 0.500 inch, this seal is commonly used in industrial gearboxes, pumps, reducers, power transmission equipment, agricultural machinery, conveyors, and OEM rotating machinery.

⚙️ Applications

• Industrial gearboxes
• Speed reducers
• Industrial pumps
• Mixers and agitators
• Power transmission equipment
• Conveyor systems
• Agricultural machinery
• Industrial drives
• Construction equipment
• OEM machinery

🎯 Benefits

✔ Bi-directional sealing capability

✔ Excellent media separation

✔ Reliable lubricant retention

✔ Dual spring-loaded lip design

✔ Protects bearings and shafts

✔ Reduces lubricant leakage

✔ Suitable for continuous-duty operation

✔ Long service life

✔ Reliable industrial performance

🧠 Technical Insight

• DB Bi-Directional Seal Design
• Dual Opposing Sealing Lips
• Spring Loaded Lip Configuration
• Reinforced Metal Case
• Suitable for Oil & Grease Lubrication
• Enhanced Media Separation
• Excellent Oil Resistance
• Designed for Industrial Rotating Equipment

✅ Key Features

• STEFA Industrial Quality
• DB Profile Design
• Dual Lip Construction
• Premium NBR Material
• Reinforced Metal Case
• Excellent Wear Resistance
• OEM Replacement Ready
• Long Service Life

📊 Specifications

Brand: STEFA

Model: DB

Size: 2.125 x 3.194 x 0.500 inch

Type: Bi-Directional Rotary Shaft Oil Seal

Material: NBR (Nitrile Rubber)

Profile: DB

Construction: Metal Case + Dual Sealing Lips

Lip Design: Double Spring Loaded Lips

Shaft Diameter (ID): 2.125 inch

Housing Diameter (OD): 3.194 inch

Width: 0.500 inch

Lubrication: Oil & Grease

Temperature Range: -40°C to +100°C

Application Class: Industrial Service

Standard: Inch Size Oil Seal

🔁 Equivalent

Suitable replacement for:

• SKF DB Oil Seal
• Freudenberg Oil Seal
• CR Chicago Rawhide Oil Seal
• National Oil Seal
• Parker DB Oil Seal
• CFW Rotary Shaft Seal
• KACO Oil Seal
• OEM Bi-Directional 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, reducer maintenance, industrial pumps, mixers, rotating equipment, 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