330D Travel Gearbox 3rd Planetary Carrier Spider With Sun Gear Assy for

Cross OEM PN: 296-6183, 296-6184, 296-6190

This 3rd-stage planetary carrier & matched sun gear unit is the final torque reduction core inside 330D heavy excavator travel final drive. 330D is widely deployed in open-pit mining, large-scale earthmoving, highway subgrade construction and quarry excavation, bearing extreme heavy cyclic loads, steep slope climbing torque and frequent rock impact abrasion all day long.

The third planetary stage undertakes the largest low-speed high-torque output task of the entire travel reducer. Once carrier spider arms crack, sun gear tooth spalling or internal spline severe abrasion occurs, operators will face weak walking traction, inconsistent left-right track speed, continuous harsh metal grinding noise and serious overheating of travel motor housing, which directly halts construction progress.

Our assembly strictly replies original factory blueprint data for gear tooth profile, inner spline tolerance and mounting hole positioning. The three interchangeable OEM part numbers 296-6183, 296-6184, 296-6190 support free replacement during gearbox overhaul. It is a direct plug-and-play replacement without on-site secondary cutting or reaming, drastically cutting maintenance downtime. It solves the points of long delivery cycles and high procurement costs of genuine OEM parts, ideal for global used heavy excavator fleets distributed in Africa, Southeast Asia and Central Asia mining zones.

1. 3 Interchangeable OEM Part Numbers, Exact 1:1 OEM Dimensional Matching for 330D Travel Final Drive

   Three cross-reference part numbers 296-6183, 296-6184, 296-6190 can be mutually replaced during travel gearbox repair and reconstruction. This planetary carrier-sun gear combo is tailor-made to fit the internal cavity of 330D travel reducer, with zero cross-model compatibility for other excavators like 329D or 336D. Accurate repliion of original spline and gear meshing clearances eliminates track deviation, unsteady walking jitter, harsh internal friction noise and premature abrasion of matched transmission components post-installation.

2. Integrated Thickened One-Piece Forged Structure Boosts Long-Term Mining Working Durability

   Budget generic aftermarket planetary carriers commonly suffer spider arm fracture or sun gear tooth collapse under round-the-clock continuous heavy mining loads. Our integral thick die forging process paired with full multi-stage constant-temperature heat treatment drastically elevates anti-impact and anti-fatigue performance. It delivers stable high-torque transmission during non-stop heavy digging and long-distance cross-site reloion for rental and pre-owned heavy excavator fleets.

3. Two Independent Pre-Delivery Quality Screening Workflows Eliminate Costly On-Site Construction Shutdowns

   Every finished assembly undergoes two separate closed-loop inspection procedures before factory shipment. Full-range dimension calibration verifies all matching tolerances of gear surfaces and inner splines. Simulated large open-pit mine heavy torque aging test reproduces extreme harsh actual working loads to validate long-term transmission stability. All defective semi-finished products are filtered out internally, saving repair shops and mine operators from financial losses caused by unplanned machine downtime.

4. High Cost-Performance OEM-Grade Repair Alternative for Heavy Excavator Fleet Owners

   Genuine original planetary spare parts carry steep procurement costs and inconsistent supply cycles for the widely circulated 330D classic heavy excavator model. Our aftermarket assembly reaches OEM equivalent load-bearing capacity and service lifespan at factory-direct wholesale prices, effectively cutting annual maintenance expenditure for enterprises managing multiple 330D machine assets.

5. Diversified Global Logistics Channels for International Construction Machinery Spare Parts Wholesalers

   All in-stock items can be arranged for shipment within 3 working days once payment is confirmed. Express air freight ers to urgent emergency breakdown orders from remote mountain mining zones. Consolidated bulk sea cargo and full-container FCL shipping provide budget-friendly bulk purchase plans for dealers covering Africa, Southeast Asia, the Middle East, Central Asia and Latin America.

Our production workshop specializes in R&D and mass production of series excavator final drive planetary transmission spare parts for over 13 years, with travel gearbox planetary carrier assemblies as our core flagship product line. We own a complete closed-loop production chain: alloy steel die forging, 5-axis precision gear machining, constant-temperature professional heat treatment and finished-product heavy-load simulation testing. Custom heavy-torque test benches replie harsh mine and highway construction environments to continuously optimize product shock resistance and extend service life. Our planetary transmission spare parts are exported to more than 48 countries and regions worldwide, establishing long-term stable strategic cooperative partnerships with heavy machinery spare parts wholesalers globally.