9W-9134 planetary gear for CAT bulldozer spare part

9W-9134 planetary gear for CAT bulldozer spare part Featured Image
  • 9W-9134 planetary gear for CAT bulldozer spare part
  • 9W-9134 planetary gear for CAT bulldozer spare part

Short Description:

Planetary gear for Caterpillar D10N/D10R/D10T/D10T2 bulldozer final drive, 25 teeth, meshes with sun gear and ring gear to share torque, rotates on planet shaft for speed reduction and torque amplification.

Product Detail

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description

Planetary gear is the driven gear of final drive planetary assembly, mounted on planet shaft. It rotates on its own axis while orbiting the sun gear to share heavy impact torque. Pitting, spalling, broken teeth and inner bore scoring will cause abnormal noise, excessive backlash and vibration, and may damage the whole planetary set including sun gear, ring gear and planet shaft.

Part No.:9W-9134
Type: Planet Gear
Teeth: 25 Teeth
Material: Alloy structural steel
Surface Treatment: Carburizing & quenching, hardened tooth surface
Structure: With inner bore for planet shaft and needle bearing
Load Feature: Heavy impact load, low speed high torque
Working Condition: Heavy load field condition for bulldozer final drive
Matching System: Final drive planetary reduction assembly

Application Scenarios

Fits Caterpillar D10N, D10R, D10T, D10T2 track-type tractor, installed inside final drive planetary reduction assembly, matched with planet shaft, sun gear and ring gear.

FAQ 

Q：Can planet gear with slight pitting on tooth surface keep working?
A：Not recommended. Pitting will expand and cause spalling or broken teeth, damaging sun gear and ring gear.

Q：Can I replace only planet gears without sun gear and ring gear?
A：Not recommended. Worn-in old gears do not match new gears, poor meshing leads to fast wear.

Q：What causes scoring on planet gear inner bore?
A：Scratched planet shaft, insufficient lubrication, seized bearing and misalignment will score the bore.

Q：What happens if the gear backlash is too large?
A：Large backlash increases impact and noise, easy to break teeth; too small backlash causes overheating and tooth burn due to poor lubrication.

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