A: Excavator tracking deviation, loss of power in one track, or hydraulic oil mixing are primary symptoms. When the friction disc and rotary seals wear out, pressure bypasses the center joint, starving the travel motors.
A: Ensure the central mandrel is completely free of burrs and contamination. Lubricate all sealing components with clean hydraulic oil before assembly, and use specialized expansion tools to avoid tearing the rings during installation.
A: Check the specific part numbers 095-1714 or 0951714. This exact rotary sealing group is precisely engineered for center joints on 307, 315B, 322B, and 330D excavator models.
A: It utilizes advanced compound material that maintains stable sealing force at temperatures up to 120 degrees Celsius. It resists heavy pressure spikes and prevents structural deformation under continuous rotational heat.
A: We provide batches with low defect rates, backed by factory warranties to eliminate return liabilities. Our large stock levels ensure fast shipping, protecting your local distributor reputation and order fulfillment rates.
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 Companie





















