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  • Factory Supply Excavator Spare Part Transmission SWING PINION GEAR JS140
  • Factory Supply Excavator Spare Part Transmission SWING PINION GEAR JS140
  • Factory Supply Excavator Spare Part Transmission SWING PINION GEAR JS140
  • Factory Supply Excavator Spare Part Transmission SWING PINION GEAR JS140
  • Factory Supply Excavator Spare Part Transmission SWING PINION GEAR JS140
  • Factory Supply Excavator Spare Part Transmission SWING PINION GEAR JS140
Factory Supply Excavator Spare Part Transmission SWING PINION GEAR JS140

Factory Supply Excavator Spare Part Transmission SWING PINION GEAR JS140

  • >= 1 Pieces
    $1,000

Customization:

Customized logo（Min.Order: 1 pieces）
Customized packaging（Min.Order: 1 pieces）
Graphic customization（Min.Order: 1 pieces）
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Factory Supply Excavator Spare Part Transmission SWING PINION GEAR JS140

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Power Transmission: Designed to transmit rotational force and torque in excavator swing mechanisms, ensuring precise power distribution in heavy machinery operations.
  • Brand Compatibility: Specifically engineered for Komatsu and Hitachi excavators, guaranteeing seamless integration with their transmission systems.

Key features

  • 1. Durable Steel Construction for Harsh Environments

    • With a corrosion-resistant steel body, this swing pinion gear ensures longevity in heavy-duty construction machinery. Its robust material outperforms cheaper alternatives prone to wear, maintaining performance in industrial settings.*

  • 2. Precision-Machined Teeth for Seamless Compatibility

    • The evenly spaced, precisely engineered teeth guarantee smooth meshing with mating gears, reducing friction and wear. Designed to match Komatsu and Hitachi specifications, it aligns perfectly with original equipment requirements.*

  • 3. High-Torque Transmission Efficiency

    • With a reinforced structure optimized for excavator transmissions, this gear handles extreme loads and torque demands, outperforming standard gears in power transfer reliability.*

  • 4. Customizable Mounting for Versatile Applications

    • The central splined design allows secure, adjustable mounting on shafts, adapting to diverse mechanical configurations. Ideal for both routine and high-stress operations in construction machinery.*

  • 5. Manufacturer-Backed Reliability

    • Backed by a 3-month warranty, this gear meets industry standards for construction equipment durability. Its rigorous quality control ensures compliance with safety and performance norms.*

Product details

Factory Supply Excavator Spare Part Transmission SWING PINION GEAR JS140

The Factory Supply Excavator Spare Part Transmission SWING PINION GEAR JS140 is a high-strength steel gear engineered for Komatsu and Hitachi excavators. Designed for heavy-duty applications, it ensures precise power transmission and durability with a 3-month warranty. Its robust construction and customizable features make it ideal for industrial machinery maintenance and repair.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialHigh-carbon steelWithstands extreme loads in excavator transmissions
CompatibilityKomatsu/Hitachi excavator modelsDirect replacement for OEM components
Warranty3 monthsPeace of mind for critical machinery repairs
Surface FinishPrecision-machined, polishedReduces friction in high-torque environments
Mounting DesignSplined central hubSecures gear to shafts in industrial systems

Customization guide

Adjustable parameters include tooth count, pitch diameter, and splined hub configuration to meet specific torque requirements or mounting constraints. For example, increasing tooth density enhances load capacity in high-stress applications.

Get inspired

Whether you’re maintaining a construction site’s excavators or upgrading industrial machinery, this gear ensures seamless power transfer and longevity. Its adaptable design empowers engineers to tackle even the most demanding operational needs.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
MaterialHigh-carbon steelChrome-plated steelPremium alloy steel
Load Capacity5,000 Nm+20% (6,000 Nm)+40% (7,000 Nm)*
Precision GradeISO 1328-3ISO 1328-2ISO 1328-1
Mounting OptionsStandard splinesCustom splinesModular hub design

Supplier's note

  1. Material Innovation: The Pro Model’s premium alloy steel offers 40% higher tensile strength than industry standards, enabling safe operation in extreme mining environments.
  2. Precision Engineering: Advanced Model’s ISO 1328-2 compliance ensures 20% smoother meshing with mating gears, reducing wear in high-cycle applications.
  3. Customization Flexibility: With modular hubs, the Pro Model adapts to non-standard shafts, eliminating the need for costly retooling.

Version Selection Guide:

  • Base Model: Ideal for routine excavator maintenance where standard load capacities suffice.
  • Advanced Model: Choose for heavy-duty applications requiring extended lifespan, such as continuous mining operations.
  • Pro Model: Best for extreme environments (e.g., high-temperature rock crushing) where peak load resistance and precision are critical.

With the Pro Model’s 7,000 Nm load capacity, you can handle excavator transmissions in harsh terrains without downtime. Pair its premium alloy material with modular hubs to streamline integration into legacy systems.

Frequently asked questions

  • Which excavator models is the SWING PINION GEAR JS140 compatible with?

  • How do I maintain the SWING PINION GEAR JS140 for heavy-duty use?

  • Why is the SWING PINION GEAR JS140 made of steel instead of other materials?

  • Can the SWING PINION GEAR JS140 be customized for non-standard machinery?

  • What’s the warranty period for the SWING PINION GEAR JS140?

  • What applications is the SWING PINION GEAR JS140 best suited for?

  • Is the SWING PINION GEAR JS140 suitable for high-torque excavator operations?

  • How does the SWING PINION GEAR JS140 ensure smooth power transmission?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionHeavy machinery requiring high durability and long service lifeSteel (ASTM A36) [Industry Standard]; Our Base: Same; Advanced: Alloy Steel (ASTM A414) ▲ (20% higher tensile strength)Advanced offers enhanced strength and wear resistanceBase version heavier; Advanced more costly
Load CapacityHigh-torque applications in mining/construction equipmentIndustry: 8,000 Nm; Base: 9,500 Nm ▲ (ISO 6336); Advanced: 12,000 Nm ▲▲ (ISO 6336)Advanced handles extreme loads with reduced downtimeBase may not suit heavy-duty continuous operation
CompatibilityOEM replacement for Komatsu/Hitachi excavatorsIndustry: Brand-specific designs; Base: OEM fit for JS140 models; Advanced: Universal fit ▲ (adapts to 5+ brands via modular design)Advanced reduces inventory needs by fitting multiple brandsBase limited to specific OEM models
Noise LevelUrban construction sites with strict noise regulationsIndustry: 85 dB (ISO 3744); Base: 78 dB ▲ (ISO 3744); Advanced: 72 dB ▲▲ (quieter than a lawnmower)Advanced minimizes noise pollution for city projectsAdvanced version has higher cost due to sound-dampening tech
WarrantyLong-term infrastructure projects with extended equipment lifespansIndustry: 1 year; Base: 3 months; Advanced: 2 years ▲ (backed by durability improvements)Advanced provides better long-term protection and peace of mindBase warranty may be insufficient for heavy-duty use
CustomizationSpecialized machinery requiring non-standard gear specificationsIndustry: Limited; Base: Standard sizes; Advanced: Customizable pitch/spline ▲ (ISO 21770)Advanced meets unique engineering requirements for niche applicationsBase lacks flexibility for non-standard gear configurations

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