Travel drive grinding or tractive force dropping on your Caterpillar excavator? A fractured or pin-worn 569-4225 planetary carrier disrupts the load path through the final drive, allowing planet gears to orbit unevenly and destroying tractive force multiplication. RITO supplies this heavy-duty planetary carrier assembly to restore correct planetary gear geometry and full track drive performance.
Item NO.:
569-4225Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In Stock569-4225 Planetary Carrier Assembly for Caterpillar excavator final drive reduction gearbox. This carrier positions and retains the planet gears in the planetary reduction set, providing the structural frame that multiplies travel motor torque before transmitting it to the sprocket shaft. Forged alloy steel body with precision-machined pin bores ensures equal load distribution across all planet gears under peak tractive loading.
| Part Number | 569-4225 |
|---|---|
| Part Name | Planetary Carrier Assembly |
| Compatible Brand | Caterpillar |
| Applicable Models | Caterpillar Excavator Final Drive / Travel Gearbox |
| Application | Planet gear carrier in Caterpillar excavator final drive reduction gearbox |
| Material | High-strength forged alloy steel |
| Product Color | Metallic finish |
| Working Temperature | -30°C~+80°C |
| Key Function | Positions planet gears to transmit and multiply travel motor torque to the sprocket shaft |
| Condition | 100% New Aftermarket OEM Quality |
| Packaging | Wooden Case Reinforced Carton Neutral Packing Customized Box |
Drop-forged alloy steel carrier cage withstands the shock loads generated during hard-ground engagement and sudden track braking without fracturing at the arm roots.
Planet carrier pin bores machined to H7 tolerance for correct planet gear alignment and equal load sharing across all three or four planet gears under full tractive torque.
Carrier mounting geometry machined to Caterpillar 569-4225 specification for direct installation into the existing final drive housing without machining or shimming.
Full assembly includes carrier body and planet pins, providing a single-part replacement that eliminates the complexity and dimensional risk of fitting individual pins.
FAQ
Q: What are the signs the 569-4225 carrier has failed on a Cat excavator?
A: Unequal track drive speed left to right despite equal travel motor pressure, grinding or rumbling from the final drive housing, large steel chips in the gearbox oil, and visible planet gear shaft play when the sprocket is rotated by hand.
Q: Should I replace the planet gears at the same time as the 569-4225 carrier?
A: If the carrier failed by pin fracture or bore wear, planet gear bore surfaces are typically also damaged. Replace the full planet set together with the carrier to avoid rapid re-failure.
Q: What final drive oil grade should I use after fitting 569-4225?
A: Use the gear oil grade specified in the Caterpillar excavator service manual (typically EP 90 or EP 140). Drain and replace oil after the first 50-hour break-in period to remove any assembly residuals.
Q: How to confirm 569-4225 fits my Caterpillar excavator?
A: Match the existing carrier part number 569-4225 and confirm the final drive model. Provide machine model and serial number to our team for cross-reference.
Q: What quality options are available?
A: We provide original, OEM and high-quality aftermarket versions with stable supply capability.
Q:Why Choose RITO?
A:Listed Factory
Stable&Reliable Quality
OEM Factory for Chinese Top Excavator Brands
Supplier to Fortune 500 Companies
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