A: Look for metallic dust or gear shards in the drained oil, popping noises when turning, or a hot outer housing. These signs point to worn planetary bearings or pitted gear teeth that require attention.
A: The gearbox must be filled to the specified dipstick level with the correct grade of heavy extreme-pressure gear oil. Running the planetary system dry for even a few minutes during testing will cause catastrophic gear tooth welding.
A: Confirm that your existing final drive code matches the MX3A designation. Providing your supplier with your exact track frame bolt count will confirm proper fitment before shipping.
A: It features heavy-duty duo-cone mechanical seals with precision-ground steel rings and elastomeric load rings. This design maintains constant sealing pressure to keep out water, mud, and grit, even when the drive is fully submerged.
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






















