A: Excessive casing heat generation, a distinct rhythmic clicking sound while tracking forward, and fine metallic glitter on the drain plug magnet confirm bearing breakdown.
A: Mechanics must inspect sprocket bolt threads, clean the indexing flange meticulously, and torque all fasteners in a star pattern to full factory specifications.
A: This transmission package is standardized according to factory blueprints for Caterpillar 305.5E, 305.5D, 305E, and 306 series tracks to ensure immediate bolt hole alignment.
A: The gears undergo deep induction hardening and carburization, providing a ductile internal steel core that absorbs sudden impacts without brittle outer fracturing.
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






















