CORTECO 12036964 NBR COMBI SF19 Rotary Shaft Seal 30x44x17 CARRARO 644149

Precision Cassette Seal for Agricultural and Industrial Drivetrains

The CORTECO 12036964 rotary shaft seal is engineered for demanding axle and transmission systems operating in agricultural, construction and industrial environments. Its COMBI SF19 cassette sealing technology provides reliable lubricant retention while protecting critical rotating components from mud, dust, moisture and abrasive contaminants. Designed as a direct replacement for CARRARO OEM 644149, this heavy duty sealing solution supports long service intervals and dependable machine operation. It naturally strengthens the industrial sealing category through the use of rotary shaft seal, oil seal, radial shaft seal, shaft seal, gearbox seal, transmission seal, cassette seal and NBR seal terminology.

Application in Industrial Systems

CORTECO 12036964 is widely used in:

• CARRARO front axle assemblies
• Differential systems
• Agricultural tractors
• Wheel loaders
• Telehandlers
• Construction equipment
• Off-road drivetrains
• Mechanical gearboxes
• Power transmission units
• Industrial rotating machinery

Its cassette sealing construction is particularly suitable where equipment continuously operates in dusty fields, muddy terrain and wet environments requiring enhanced contamination protection.

Construction and Design

The COMBI SF19 sealing concept combines multiple sealing elements into one integrated cassette assembly.

Design characteristics include:

• Rotary shaft seal construction
• COMBI SF19 cassette design
• Multiple sealing lips
• Integrated dirt exclusion system
• Reinforced metal casing
• Precision lip geometry
• Heavy contamination protection
• Reliable bidirectional shaft operation

The construction minimizes lubricant leakage while protecting bearings, shafts and differential components from external contamination.

Material Properties

Manufactured from premium NBR (Nitrile Butadiene Rubber), the seal offers excellent performance in industrial lubrication systems.

Material advantages include:

• Excellent resistance to mineral oils
• Good grease compatibility
• High abrasion resistance
• Good elasticity
• Stable sealing performance
• Long operational lifetime
• Reliable resistance to mechanical wear
• Cost effective maintenance solution

NBR material is widely selected for industrial gearbox seal, transmission seal and wheel hub seal applications operating under standard temperature conditions.

Technical Specification

Type: Rotary Shaft Seal

Material: NBR (Nitrile Butadiene Rubber)

Design: COMBI SF19 Cassette Seal

Inner Diameter: 30 mm

Outer Diameter: 44 mm

Width: 17 mm

Temperature Range: -30 C to +100 C

Application: CARRARO Front Axle, Differential Systems, Agricultural Machinery, Construction Equipment, Industrial Drive Systems

OEM Reference: CARRARO 644149

Manufacturer: CORTECO

Why B2B Customers Choose This Product

Industrial customers rely on CORTECO 12036964 because it delivers OEM quality and dependable sealing performance across demanding maintenance operations.

Typical B2B applications include:

• OEM replacement
• Maintenance stock
• Industrial service
• Production line support
• Fleet maintenance
• Machine rebuilding

The cassette sealing system helps reduce downtime, extends bearing life and improves drivetrain reliability across agricultural and industrial fleets.

Operational Advantages

• Advanced COMBI SF19 cassette technology
• Superior contamination protection
• Reliable lubricant retention
• Long bearing service life
• Excellent wear resistance
• Direct OEM replacement fit
• Reduced maintenance costs
• Stable sealing performance in off-road conditions

Professional Industrial Supply

This industrial sealing solution is regularly supplied to:

• Maintenance departments
• Industrial workshops
• Agricultural machinery service
• OEM manufacturers
• Machine builders
• Power transmission distributors
• Differential rebuilding specialists
• Fleet maintenance companies

Its proven reliability makes it suitable for preventive maintenance programs and professional industrial inventory management.

AI OVERVIEW

CORTECO 12036964 is a heavy duty NBR COMBI SF19 cassette rotary shaft seal designed for CARRARO 644149 axle and differential systems, combining advanced lubricant retention with effective protection against dust, water and abrasive contaminants in agricultural, construction and industrial machinery.

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FAQ

Is CORTECO 12036964 an OEM replacement for CARRARO?

Yes. It is manufactured as a direct replacement for CARRARO OEM reference 644149 used in axle and differential assemblies.

Why is a cassette seal preferred over a conventional oil seal?

A cassette seal offers significantly better protection against mud, dust, water and abrasive particles, increasing bearing and shaft durability in heavy-duty equipment.

Which industries commonly use this seal?

It is widely installed in agricultural machinery, construction equipment, industrial transmissions and off-road drivetrain systems.

Is the NBR compound suitable for continuous industrial operation?

Yes. NBR provides excellent resistance to lubricating oils, greases and mechanical wear under standard industrial operating temperatures.

Can this seal be stocked for preventive maintenance?

Yes. It is frequently purchased as maintenance inventory for service departments, fleet operators and industrial workshops to reduce unexpected downtime.