The REPCO Oil Seal 4.625x5.254x0.375 TG NBR is designed for industrial rotary shaft applications requiring dependable lubricant retention around a large inch-size shaft assembly.

Installed between the rotating shaft and stationary housing, the seal creates controlled radial contact with the shaft surface. This helps reduce leakage of oil or compatible grease while limiting the entry of dust, dirt, moisture, and abrasive contaminants into the bearing, gearbox, pump, or transmission assembly.

The product is identified by the REPCO manufacturer designation TG. Because industrial seal profile codes are manufacturer-specific, the exact sealing-lip geometry, outside-diameter construction, reinforcing components, spring arrangement, dust-exclusion feature, and installation direction should be compared with the original seal or technical drawing before replacement.

The relatively small difference between the shaft and housing diameters creates a compact radial seal section. This configuration may be intended for a dedicated bearing housing, gearbox, transmission, or OEM machine design where installation space is limited.

Manufactured from NBR (Nitrile Butadiene Rubber), the sealing element is generally compatible with:

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

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

The inch dimensions correspond approximately to:

Shaft diameter: 4.625 inches or 117.48 mm

Housing diameter: 5.254 inches or 133.45 mm

Seal width: 0.375 inch or 9.53 mm

The specific shaft and housing dimensions indicate that this seal may be intended for a dedicated large bearing housing, gearbox, transmission, axle assembly, or OEM industrial machine. Accurate dimensional measurement and TG profile verification are essential before installation.

⚙️ 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 oil or compatible grease

✔ Protects bearings and rotating components

✔ Oil-resistant NBR sealing material

✔ Suitable for large inch-size shaft assemblies

✔ Compact radial seal section

✔ Good resistance to wear and abrasion

✔ Suitable for maintenance and overhaul work

✔ Supports longer bearing service life

✔ OEM replacement ready when dimensions and profile match

🧠 Technical Insight

• REPCO TG Seal Reference
• Large Inch-Size Rotary Shaft Seal
• NBR Sealing Material
• Radial Shaft-Sealing Function
• Lubricant Retention Design
• Compact Radial Cross-Section
• Approximately 117.48 mm Shaft Diameter
• TG Profile Verification Required

✅ Key Features

• REPCO Industrial Quality
• TG Profile Reference
• Reinforced Rotary Shaft Construction
• Oil-Resistant NBR Material
• Large Inch-Size Dimensions
• Suitable for Compatible Oil and Grease
• Industrial Replacement Seal
• OEM Cross-Reference Ready

📊 Specifications

Brand: REPCO

Model: TG

Size: 4.625 × 5.254 × 0.375 inch

Metric Equivalent: Approximately 117.48 × 133.45 × 9.53 mm

Type: Industrial Rotary Shaft Oil Seal

Material: NBR (Nitrile Butadiene Rubber)

Profile: TG

Construction: Manufacturer-Specific Reinforced Shaft-Seal Construction

Lip Design: TG profile; verify against the original seal

Dust Lip: Verify from the actual TG cross-section

Spring Type: Verify from the actual seal construction

Shaft Diameter (ID): 4.625 inches / approximately 117.48 mm

Housing Diameter (OD): 5.254 inches / approximately 133.45 mm

Width: 0.375 inch / approximately 9.53 mm

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

Lubrication: Oil and compatible grease

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

Application Class: Industrial Bearing and Rotating Equipment

Standard: Inch-Size Industrial Seal

🔁 Equivalent

Suitable replacement for compatible:

• REPCO TG Rotary Shaft Seal
• 4.625x5.254x0.375 Oil Seal
• 117.48x133.45x9.53 Rotary Seal
• Large Inch-Size NBR Oil Seal
• Industrial Bearing Housing Seal
• Industrial Gearbox Shaft Seal
• Pump Shaft Oil Seal
• Transmission Shaft Seal
• OEM TG Shaft Seal
• Industrial Rotary Shaft Seal

The same dimensions alone do not guarantee interchangeability. The replacement must match the original TG cross-section, lip orientation, outside-case construction, spring arrangement, reinforcing components, and material compound.

(Always verify dimensions, TG profile geometry, lip direction, spring construction, shaft and housing condition, lubricant compatibility, rotational speed, temperature, and operating conditions before ordering.)

📦 Availability

✅ In Stock

🚚 Fast Delivery Available

🌎 Worldwide Shipping Available

📦 MOQ: 1 Piece

🏭 Suitable for gearbox overhaul, bearing-housing maintenance, pump repair, transmission servicing, agricultural machinery maintenance, 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