940004044 MAIN GEAR XCMG D260 Crawler Bulldozer spare parts

Short Description:

Fit for XCMG bulldozer D260, suitable for earth‑moving pushing, site leveling and mine muck handling. Used to replace original MAIN GEAR with tooth‑surface spalling, broken tooth and worn failed keyway.

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Product Detail

Product Tags

description

Part number:940004044
Part name:MAIN GEAR
Unit name:940004047 FINAL DRIVE ASSEMBLY
Applicable Models: XCMG D260 Crawler Bulldozer

MAIN GEAR is the core power‑transmission part of bulldozer transmission system. It meshes with driven gear and transmits engine torque to realize power output for travelling mechanism, bearing heavy‑load impact and alternating load. Pitting spalling, broken tooth, root crack and worn keyway will lead to transmission abnormal noise, power slipping and insufficient travelling force. In serious cases, gear fracture causes total damage of transmission assembly.

*Due to the wide variety of products, the pictures displayed may not match the actual ones, and the part numbers are mainly used.

Item No./Factory drawing number/Part Name/Remark

27 940000065 2 ELASTICITY RETAINER RING 250
28 940004044 2 MAIN GEAR
29 940002997 32 BOLT
30 940004067 16 LOCK
31 940004415 32 NUT
32 940004058 2 GEAR HUB

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advantages

Tooth profile parameter, spline specification, outer diameter and thickness conform to original standard, excellent interchangeability for direct installation without secondary processing.
Made of high‑strength gear steel with quenching treatment. High tooth‑surface hardness delivers good impact and wear resistance for bulldozer heavy‑load operation.
Qualified machining precision ensures smooth meshing, reduces transmission noise and avoids abnormal wear of gear pair.
Single‑piece gear part, suitable for transmission case overhaul and convenient for spare‑parts stocking for overseas projects.

FAQ

Q: Can gear with slight pitting continue to work?
A: Short‑term observation is allowed for minor pitting. Replace once spalling or crack occurs to avoid whole‑set transmission damage caused by tooth breakage.
Q: What causes transmission housing abnormal noise after main gear replacement?
A: Check gear meshing backlash, inspect bearing condition and confirm no residual metal debris inside housing.

warehouse

We have built four spare parts warehouses in Xuzhou, Jining, Kunshan and Changsha to provide customers from all over the world with a variety of high-quality spare parts. We can basically ship self-provided spare parts within three days after confirming the order. If the spare parts need to be adjusted or processed, they will be shipped within 7-30 days.