The REPCO Oil Seal 1.375x2.816x0.625 M/R/L NBR is designed for industrial rotary shaft applications requiring reliable lubricant retention and durable sealing performance around an inch-size shaft assembly.

Installed between a rotating shaft and stationary housing, the seal creates controlled radial contact around the shaft. This helps reduce oil or grease 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 REPCO manufacturer designation M/R/L. Because profile codes are manufacturer-specific, the exact lip arrangement, outer-case configuration, reinforcing components, spring construction, 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. 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: 1.375 inches or 34.93 mm

Housing diameter: 2.816 inches or 71.53 mm

Seal width: 0.625 inch or 15.88 mm

The relatively wide seal section and specific housing diameter indicate that this product may be intended for a dedicated bearing housing, gearbox, axle, transmission, or OEM industrial machine. Accurate measurement and M/R/L 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

✔ Heavy-duty industrial construction

✔ 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 M/R/L Seal Reference
• Inch-Size Rotary Shaft Seal
• NBR Sealing Material
• Radial Shaft-Sealing Function
• Lubricant Retention Design
• Wide Heavy-Duty Seal Section
• Approximately 34.93 mm Shaft Diameter
• M/R/L Profile Verification Required

✅ Key Features

• REPCO Industrial Quality
• M/R/L Profile Reference
• Reinforced 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: REPCO

Model: M/R/L

Size: 1.375 × 2.816 × 0.625 inch

Metric Equivalent: Approximately 34.93 × 71.53 × 15.88 mm

Type: Heavy-Duty Industrial Rotary Shaft Oil Seal

Material: NBR (Nitrile Butadiene Rubber)

Profile: M/R/L

Construction: Manufacturer-Specific Reinforced Shaft-Seal Construction

Lip Design: M/R/L profile; verify against the original seal

Dust Lip: Verify from the actual M/R/L cross-section

Spring Type: Verify from the actual seal construction

Shaft Diameter (ID): 1.375 inches / approximately 34.93 mm

Housing Diameter (OD): 2.816 inches / approximately 71.53 mm

Width: 0.625 inch / approximately 15.88 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 M/R/L Rotary Shaft Seal
• 1.375x2.816x0.625 Oil Seal
• 34.93x71.53x15.88 Rotary Seal
• Inch-Size NBR Oil Seal
• Industrial Bearing Housing Seal
• Industrial Gearbox Shaft Seal
• Pump Shaft Oil Seal
• Transmission Shaft Seal
• OEM M/R/L Shaft Seal
• Heavy-Duty Rotary Shaft Seal

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

(Always verify dimensions, M/R/L 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