The UNIVERSAL Oil Seal 3.375x5.004x0.563 LGS NBR is designed for industrial rotary shaft applications requiring lubricant retention around a 3.375-inch shaft within a 5.004-inch housing bore.

Installed between the rotating shaft and stationary housing, the sealing element maintains controlled radial contact with the shaft surface to help reduce leakage of compatible oil or grease while protecting bearings, gears, pumps, transmissions, and other internal rotating components.

The product is identified by the UNIVERSAL manufacturer designation LGS. 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 verified 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 generally provides good resistance to petroleum-based oils, grease, abrasion, and mechanical wear under normal industrial conditions. Compatibility should be verified before use with aggressive chemicals, certain fuels, specialized synthetic lubricants, ozone-rich environments, or continuous elevated-temperature service.

The inch dimensions convert approximately to:

Shaft diameter: 3.375 inches or 85.73 mm

Housing diameter: 5.004 inches or approximately 127.10 mm

Seal width: 0.563 inch or approximately 14.30 mm

The 3.375 × 5.004 × 0.563-inch configuration is suitable for medium-to-large bearing housings, industrial gearboxes, pumps, transmissions, agricultural machinery, and legacy equipment using an inch-size rotary shaft-sealing arrangement.

⚙️ Applications

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

🎯 Benefits

✔ Helps retain compatible oil or grease

✔ Protects bearings and internal components

✔ Oil-resistant NBR sealing material

✔ Suitable for 3.375-inch shaft assemblies

✔ Manufacturer-specific UNIVERSAL LGS profile

✔ Good resistance to abrasion and wear

✔ 0.563-inch axial width

✔ Suitable for maintenance and overhaul work

✔ Replacement ready when dimensions and LGS profile match

🧠 Technical Insight

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

✅ Key Features

• UNIVERSAL Industrial Quality
• LGS Profile Reference
• Oil-Resistant NBR Material
• Inch-Size Construction
• 3.375x5.004x0.563 Dimensions
• Suitable for Compatible Oil and Grease
• Industrial Replacement Seal
• Cross-Reference Support Available

📊 Specifications

Brand: UNIVERSAL

Model / Profile: LGS

Size: 3.375 × 5.004 × 0.563 inch

Metric Equivalent: Approximately 85.73 × 127.10 × 14.30 mm

Type: Industrial Rotary Shaft Oil Seal

Material: NBR (Nitrile Butadiene Rubber)

Profile: LGS

Construction: Manufacturer-Specific UNIVERSAL LGS Rotary Shaft-Seal Construction

Lip Design: LGS profile; verify exact sealing-lip geometry, number of lips, and orientation against the original seal or technical drawing

Dust Lip: Verify from the actual LGS cross-section

Spring Type: Verify from the actual LGS seal construction

Shaft Diameter (ID): 3.375 inches / 85.73 mm

Housing Diameter (OD): 5.004 inches / approximately 127.10 mm

Width: 0.563 inch / approximately 14.30 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, shaft finish, lubrication, temperature, alignment, concentricity, runout, lip loading, and actual NBR compound

Installation Consideration: Confirm shaft finish, shaft hardness, housing-bore condition, installation depth, lip orientation, concentricity, runout, and protection from sharp shaft edges before fitting

Application Class: Medium-to-Large Industrial Bearing and Rotating Equipment

Standard: Inch-Size Specialized Industrial Seal

🔁 Equivalent

Suitable replacement or cross-reference candidate for compatible:

• UNIVERSAL LGS NBR Rotary Shaft Seal
• UNIVERSAL 3.375x5.004x0.563 Oil Seal
• 85.73x127.10x14.30 Rotary Seal
• 3.375-Inch Shaft Oil Seal
• Inch-Size NBR Rotary Shaft Seal
• Industrial Bearing Housing Seal
• Industrial Gearbox Shaft Seal
• Industrial Pump Shaft Seal
• OEM LGS Profile Oil Seal
• Industrial NBR Shaft Seal

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

(Always verify dimensions, LGS-profile geometry, lip direction, shaft finish, shaft hardness, housing condition, installation depth, lubricant compatibility, rotational speed, temperature, concentricity, 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