Rumbling or grinding from the final drive on your EX700 during travel? A worn 4219329 travel bearing allows axial and radial play that misaligns the planetary gears and generates the grinding noise that precedes catastrophic final drive failure. RITO's durable roller bearing restores tight, quiet rotation in the EX700 travel gearbox.
Item NO.:
4219329-OTOrder(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In Stock4219329 Travel Bearing for Hitachi EX700 excavator final drive gearbox. This large-format roller bearing supports the sprocket shaft under the combined radial load of track tension and the axial load of slope travel. Precision-ground roller profiles and a hardened raceway ensure low running noise and long service life under continuous heavy-duty travel duty.
| Part Number | 4219329 |
|---|---|
| Part Name | Travel Final Drive Roller Bearing |
| Compatible Brand | Hitachi |
| Applicable Models | EX700 Excavator Final Drive |
| Application | Main shaft support bearing in EX700 travel drive gearbox |
| Material | Bearing steel, through-hardened races and rollers |
| Product Color | Metallic silver |
| Working Temperature | -30°C~+80°C |
| Key Function | Supports sprocket shaft radial and axial loads in the EX700 final drive |
| Condition | 100% New Aftermarket OEM Quality |
| Packaging | Wooden Case Reinforced Carton Neutral Packing Customized Box |
All rolling elements and races through-hardened to HRC 60-64 for maximum rolling contact fatigue life under the heavy cyclic loads of large excavator travel duty.
Rollers crown-ground to optimise the contact stress distribution across the race width, preventing edge loading that initiates early raceway spalling.
Maximum roller count for the available envelope increases the static and dynamic load rating, extending bearing life in the demanding EX700 final drive environment.
Bore, outer diameter and width matched to EX700 OEM specification for direct installation without housing modification.
FAQ
Q: What are the warning signs of a failing 4219329 bearing on an EX700?
A: Progressive low-frequency rumble from the final drive housing during travel, increased vibration in the undercarriage, sprocket shaft axial play measurable by hand, and metal debris in the final drive oil all indicate bearing failure.
Q: Can I replace only the 4219329 bearing or do I need to replace the full final drive?
A: If the gearbox housing bore and shaft are undamaged, the bearing alone can be replaced. Inspect the housing bore for fretting or scoring caused by the spinning outer race - if present, the housing needs repair or replacement before fitting a new bearing.
Q: What causes premature 4219329 bearing failure on EX700?
A: Contaminated or depleted final drive oil is the most common cause. EX700 final drives run long hours in abrasive environments; change gearbox oil at OEM-specified intervals and check seal integrity to protect the new bearing.
Q: How to confirm 4219329 is the correct bearing for my EX700?
A: Match bore, outer diameter, width and roller type against the old bearing. Provide the EX700 serial number and final drive model to our team for cross-reference confirmation.
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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