The TROSTEL Oil Seal 3.000x4.006x0.375 LGSP NBR is designed for industrial rotary shaft applications requiring dependable retention of oil or compatible grease around a rotating shaft assembly.

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

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

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 oils, wear, and abrasion under standard industrial operating conditions. Suitability 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: 3.000 inches or 76.20 mm

Housing diameter: 4.006 inches or 101.75 mm

Seal width: 0.375 inch or 9.53 mm

The specific outside diameter indicates that this seal may be intended for a dedicated inch-size bearing housing, gearbox, transmission, or OEM machine assembly. Accurate dimensional measurement and LGSP 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 inch-size shaft assemblies

✔ Designed for industrial rotary applications

✔ 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

TROSTEL LGSP Seal Reference

Inch-Size Rotary Shaft Seal

NBR Sealing Material

Radial Shaft-Sealing Function

Lubricant Retention Design

Industrial Bearing and Drive Application

Approximately 76.20 mm Shaft Diameter

LGSP Profile Verification Required Before Installation

✅ Key Features

TROSTEL Industrial Seal

LGSP Profile Reference

Industrial Rotary Shaft Construction

Oil-Resistant NBR Material

Inch-Size Dimensions

Suitable for Compatible Oil and Grease

Industrial Replacement Seal

OEM Cross-Reference Ready

📊 Specifications

Brand: TROSTEL

Model: LGSP

Size: 3.000 × 4.006 × 0.375 inch

Metric Equivalent: Approximately 76.20 × 101.75 × 9.53 mm

Type: Industrial Rotary Shaft Oil Seal

Material: NBR (Nitrile Butadiene Rubber)

Profile: LGSP

Construction: Manufacturer-Specific Reinforced Shaft-Seal Construction

Lip Design: LGSP profile; verify against the original seal

Dust Lip: Verify from the actual LGSP cross-section

Spring Type: Verify from the actual seal construction

Shaft Diameter (ID): 3.000 inches / approximately 76.20 mm

Housing Diameter (OD): 4.006 inches / approximately 101.75 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:

TROSTEL LGSP Rotary Shaft Seal

3.000x4.006x0.375 Oil Seal

76.20x101.75x9.53 Rotary Seal

Inch-Size NBR Oil Seal

Industrial Bearing Housing Seal

Industrial Gearbox Shaft Seal

Pump Shaft Oil Seal

Transmission Shaft Seal

OEM LGSP Shaft Seal

OEM Industrial Rotary Shaft Seal

The same dimensions alone do not guarantee interchangeability. The replacement seal must match the original LGSP cross-section, lip orientation, outside-diameter construction, spring arrangement, and material compound.

(Always verify dimensions, LGSP profile geometry, lip direction, spring construction, shaft 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 equipment maintenance, legacy machinery 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.