22W1522231 , 22W-15-22231 GEAR KOMATSU

Precision-Machined Transmission Gear for Komatsu Heavy Machinery , OEM-Grade Part by 3GEN Export

The 22W-15-22231 GEAR KOMATSU, also listed as 22W1522231 GEAR KOMATSU, is a robust and precision-engineered transmission gear specifically designed for the demanding operational conditions of Komatsu heavy machinery. Developed for use in high-torque systems, this gear functions as a core component in power transmission, ensuring continuous, balanced, and noise-free operation.

Manufactured from alloyed, heat-treated steel, the 22W-15-22231 gear offers superior fatigue resistance, tensile strength, and surface durability. Its carefully calculated tooth geometry and uniform hardness make it ideal for machines working in mining, construction, and excavation environments where reliability and performance are paramount.

Supplied globally by 3GEN Export, an established OEM supplier of Komatsu replacement parts, this gear is ready for dispatch with worldwide delivery within 5 working days.

Function and Application

The 22W-15-22231 GEAR KOMATSU plays a vital role within the transmission assembly or final drive of Komatsu machinery. Its primary function is to transfer rotational energy efficiently between connected shafts, synchronize mechanical motion, and maintain torque balance under high stress.

This gear’s design ensures:

• Consistent torque transfer even during high-load or impact conditions.

• Precision alignment between rotating assemblies to avoid backlash.

• Enhanced energy efficiency, reducing mechanical losses.

• Long-term endurance in harsh operating conditions.

The 22W1522231 gear minimizes vibration, stabilizes rotational movement, and prolongs the operational life of surrounding components such as shafts, couplings, and bearings.

Technical Specifications

Compatible Komatsu Models

The 22W-15-22231 GEAR KOMATSU is compatible with a wide range of Komatsu heavy machinery, particularly those used in excavation, mining, and material transport.

Excavators

• Komatsu PC200-7

• Komatsu PC210-8

• Komatsu PC220LC-7

• Komatsu PC240-8

• Komatsu PC300-8

• Komatsu PC350-8

• Komatsu PC400-7

• Komatsu PC450LC-8

Bulldozers

• Komatsu D65EX-16

• Komatsu D85EX-15

• Komatsu D155AX-8

Wheel Loaders

• Komatsu WA250-6

• Komatsu WA320-6

• Komatsu WA380-6

• Komatsu WA470-7

This gear can also fit equivalent Komatsu powertrain assemblies used in derivative series where transmission designs share identical torque ratios and spline geometry.

Engineering and Material Integrity

1. Superior Alloy Composition

The 22W1522231 gear is produced from premium 42CrMo4 alloy steel, offering exceptional mechanical strength and resistance to surface wear. The inclusion of chromium enhances hardness, while molybdenum provides improved tensile endurance under thermal expansion.

2. Advanced Heat Treatment

A multi-stage carburizing and tempering process provides dual-layer strength. The outer layer achieves deep case hardening (up to 62 HRC), while the inner core retains flexibility to absorb operational shocks and impacts.

3. High-Precision Tooth Geometry

Gear teeth are produced with CNC-controlled hobbing and grinding, ensuring zero pitch error and perfect involute form. This reduces noise levels and enables stable engagement with mating components even at high rotational speeds.

4. Corrosion and Oxidation Resistance

Each gear undergoes anti-corrosive treatment to resist oxidation in humid or oil-based environments. This maintains a smooth operating surface and extends functional life.

5. Strict Dimensional Tolerance Control

Dimensional accuracy is validated through CMM (Coordinate Measuring Machine) inspection, ensuring tight tolerance limits within ±0.01 mm.

Performance Characteristics

• High Load Endurance: Handles torque loads up to 1500 Nm.

• Exceptional Fatigue Resistance: Sustains prolonged use in high-pressure gearboxes.

• Low Noise Operation: Surface finishing reduces vibration by over 20%.

• Enhanced Lubricant Retention: Surface microstructure ensures consistent lubrication film.

• Energy Efficiency: Friction-optimized design results in lower energy losses.

• Extended Service Life: Designed for over 15,000 operational hours under continuous load.

Functional Use in Komatsu Equipment

Power Transmission

Within Komatsu transmission systems, the 22W-15-22231 GEAR KOMATSU facilitates power transfer between primary and secondary shafts, maintaining optimal torque output across varying engine speeds.

Final Drive Assemblies

In tracked machines such as bulldozers and excavators, this gear enhances traction by multiplying torque through reduction systems.

Swing and Rotary Systems

In hydraulic excavators, the gear ensures smooth rotational balance and synchronized movement between hydraulic and mechanical components.

Hydraulic Power Units

It serves as a coupling gear in hydraulic-driven systems, enabling efficient mechanical-to-hydraulic energy conversion.

Installation and Maintenance Guide

Installation Process

1. Inspect all mating components before installation for wear or misalignment.

2. Clean contact surfaces and apply light gear oil to the inner bore.

3. Align gear teeth carefully to ensure even pressure distribution.

4. Torque fasteners to OEM standards using calibrated tools.

5. Run-in under light load for 15–20 hours to allow proper seating.

Maintenance Recommendations

• Replace transmission oil every 500 hours.

• Inspect teeth after every 1000 operating hours.

• Check for signs of pitting or scoring; replace if visible.

• Always maintain recommended lubrication levels.

• Store spare gears in a clean, low-humidity environment.

Proper care prevents tooth wear and ensures consistent mechanical performance.

Quality Control and Certification

Each 22W1522231 GEAR KOMATSU undergoes a comprehensive multi-stage testing protocol before dispatch:

• Dimensional Verification: All measurements validated to 0.01 mm accuracy.

• Hardness Mapping: Tested across tooth surface and core to confirm uniformity.

• Ultrasonic Inspection: Detects internal inclusions or cracks.

• Dynamic Balancing: Ensures vibration-free operation at rated speed.

• Tooth Engagement Simulation: Validates perfect meshing with OEM gear standards.

• Surface Roughness Check: Confirmed within Ra ≤ 0.3 µm.

The result is a gear that delivers uncompromised precision, stability, and durability across thousands of hours of operation.

Why Choose 3GEN Export

3GEN Export stands as a trusted global OEM supplier specializing in high-performance spare parts for Komatsu and other major machinery brands. Each product is crafted with engineering accuracy and backed by rapid worldwide logistics.

Our Advantages:

• Worldwide delivery within 5 working days.

• OEM-grade part quality and performance assurance.

• 1-year manufacturer warranty.

• Competitive pricing and consistent inventory availability.

• Expert technical support for fitment and compatibility.

With 3GEN Export, customers receive precision-engineered solutions that reduce downtime, lower maintenance costs, and extend the lifespan of their Komatsu machinery.

Summary Table

Conclusion

The 22W-15-22231 GEAR KOMATSU (22W1522231 GEAR KOMATSU) is a vital element in Komatsu’s high-performance machinery, engineered for accuracy, durability, and operational excellence. Built from superior-grade steel and finished with precision-machining, it guarantees consistent torque distribution, minimal friction loss, and quiet, smooth operation.

For professionals who demand reliability and fast availability, 3GEN Export delivers OEM-quality Komatsu parts globally in just 5 working days, ensuring uninterrupted performance for heavy-duty fleets operating in the toughest environments.

Manufactured in Turkey, these products are made using the latest technologies and built to meet the highest international standards. Each machine is a high-quality copy of the original, ensuring durability, precision, and performance that you can rely on for modern construction and metalworking projects.