The REPCO Oil Seal 2.750x3.543x0.490 TG NBR is intended for industrial rotary shaft applications requiring dependable lubricant retention around a 2.750-inch shaft.

Installed between a rotating shaft and stationary housing, the sealing element creates controlled radial contact with the shaft surface. This helps minimize leakage of compatible oil or grease while protecting bearings, gears, pumps, transmissions, and other internal components from dust, moisture, and contaminants.

The product is identified by the REPCO manufacturer designation TG. This is a manufacturer-specific profile code. The exact sealing-lip geometry, number of lips, dust-exclusion arrangement, outside-case construction, internal reinforcement, spring configuration, lip orientation, and installation direction should be checked against the original seal, technical drawing, or equipment specification before replacement.

Manufactured from NBR (Nitrile Butadiene Rubber), the sealing element is generally suitable for:

• Mineral oils
• Gear oils
• Hydraulic oils
• Bearing grease
• Petroleum-based lubricants
• General industrial lubricating fluids

NBR provides good resistance to petroleum-based oils, grease, abrasion, and mechanical wear under standard industrial operating conditions. Compatibility should be verified before use with aggressive chemicals, fuels, high continuous temperatures, ozone-rich environments, or specialized synthetic lubricants.

The inch dimensions convert approximately to:

Shaft diameter: 2.750 inches or 69.85 mm

Housing diameter: 3.543 inches or 89.99 mm

Seal width: 0.490 inch or approximately 12.45 mm

The 2.750 × 3.543 × 0.490-inch configuration is suitable for industrial bearing housings, gearboxes, pumps, transmissions, conveyor drives, and legacy machinery using an inch-size shaft-sealing arrangement.

⚙️ Applications

• Industrial gearboxes
• Bearing housings
• Industrial pumps
• Mechanical transmissions
• Power transmission systems
• Agricultural machinery
• Construction equipment
• Conveyor drive assemblies
• Legacy industrial equipment
• OEM rotating machinery

🎯 Benefits

✔ Helps retain compatible oil or grease

✔ Protects bearings and internal components

✔ Oil-resistant NBR sealing material

✔ Suitable for 2.750-inch shaft assemblies

✔ Manufacturer-specific REPCO TG profile

✔ Good resistance to abrasion and wear

✔ Suitable for maintenance and overhaul work

✔ Supports legacy and imported machinery

✔ Replacement ready when dimensions and profile match

🧠 Technical Insight

• REPCO TG Seal Reference
• Inch-Size Rotary Shaft Seal
• NBR Sealing Material
• Manufacturer-Specific TG Profile
• Radial Shaft-Sealing Function
• Low-Pressure Lubricant Retention
• 69.85 mm Shaft Diameter
• Exact TG Cross-Section Must Be Verified

✅ Key Features

• REPCO Industrial Quality
• TG Profile Reference
• Oil-Resistant NBR Material
• Inch-Size Construction
• 2.750x3.543x0.490 Dimensions
• Suitable for Compatible Oil and Grease
• Industrial Replacement Seal
• Cross-Reference Support Available

📊 Specifications

Brand: REPCO

Model / Profile: TG

Size: 2.750 × 3.543 × 0.490 inch

Metric Equivalent: Approximately 69.85 × 89.99 × 12.45 mm

Type: Industrial Rotary Shaft Oil Seal

Material: NBR (Nitrile Butadiene Rubber)

Profile: TG

Construction: Manufacturer-Specific REPCO TG Rotary Shaft-Seal Construction

Lip Design: TG profile; verify the exact sealing-lip geometry and orientation against the original seal or technical drawing

Dust Lip: Verify from the actual REPCO TG cross-section

Spring Type: Verify from the actual seal construction

Shaft Diameter (ID): 2.750 inches / 69.85 mm

Housing Diameter (OD): 3.543 inches / approximately 89.99 mm

Width: 0.490 inch / approximately 12.45 mm

Pressure Capability: Low-pressure rotary shaft-sealing service unless otherwise specified

Lubrication: Compatible oil and grease

Temperature Range: Typically approximately -30°C to +100°C for standard NBR; verify the actual compound, lubricant, shaft speed, and operating conditions

Speed Consideration: Permissible speed depends on shaft diameter, surface finish, lubrication, temperature, alignment, runout, and material compound

Application Class: Industrial Bearing and Rotating Equipment

Standard: Inch-Size Specialized Industrial Seal

🔁 Equivalent

Suitable replacement or cross-reference candidate for compatible:

• REPCO TG NBR Rotary Shaft Seal
• REPCO 2.750x3.543x0.490 Oil Seal
• 69.85x89.99x12.45 Rotary Seal
• 2.750-Inch Shaft Oil Seal
• Inch-Size NBR Rotary Shaft Seal
• Industrial Bearing Housing Seal
• Industrial Gearbox Shaft Seal
• Industrial Pump Shaft Seal
• OEM TG Profile Oil Seal
• Industrial NBR Shaft Seal

The same dimensions alone do not guarantee interchangeability. The replacement must match the original TG cross-section, sealing-lip geometry, lip orientation, outside-case construction, reinforcement arrangement, spring configuration, installation direction, material compound, and operating requirements.

(Always verify dimensions, TG-profile geometry, lip direction, shaft finish, housing condition, installation depth, lubricant compatibility, rotational speed, temperature, runout, pressure, and operating conditions before ordering.)

📦 Availability

✅ In Stock

🚚 Fast Delivery Available

🌎 Worldwide Shipping Available

📦 MOQ: 1 Piece

🏭 Suitable for gearbox overhaul, bearing-housing maintenance, industrial pump repair, transmission servicing, agricultural-machinery repair, construction-equipment maintenance, conveyor-drive servicing, legacy-equipment restoration, and compatible 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