31N3-40040 transmisión final para Hyundai R110D-7 excavadora midi
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Esta es la forma más habitual de fraude. Ciertos vendedores pueden requerir una cantidad del pago por adelantado en concepto de «reserva» de su compra. Así, los estafadores perciben grandes cantidades de dinero y después desaparecen sin dejar huella.
- Transferencia de prepago a la tarjeta
- No realice un pago por adelantado sin documentación que confirme el proceso de transferencia de dinero, si durante la comunicación con el vendedor ha surgido alguna duda.
- Transferencia a una cuenta «fiduciaria»
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- Transferencia a una cuenta de una empresa con un nombre similar
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- Sustitución de sus propios datos en la factura de una empresa real
- Antes de realizar una transferencia, asegúrese de que los datos especificados sean correctos y que aludan a la empresa en cuestión.
Contactos del vendedor
+86 189 289...
+86 189 2896 5241
China
Product Overview
The Hyundai R110D‑7 is the little brother in the Robex ‑7 line — an 11‑ton compact excavator that punches above its weight on tight urban sites, utility trenches and residential footings where a 20‑ton machine simply will not fit. Under each track frame sits the travel motor assembly, reference 31N3‑40040, that takes high‑pressure oil from the main pump and turns it into the slow, steady pull moving the machine between pipe runs.
On a worked 11‑ton Hyundai, the drive wears down in small, easy‑to‑miss ways. The operator notices the two tracks no longer quite match on a flat driveway, that one track warms after a shorter trundle than it should, and that a faint whine creeps into the circuit the moment the bucket crowds the trench wall. Most crews nurse it another week — but by then the piston group and reduction gears are already shedding swarf into the travel oil. This OEM‑grade unit reproduces the original motor‑and‑reducer pairing as one sealed, bench‑tested assembly, so the worn drive lifts out whole and the new one bolts straight back in.
Core Advantages
1. Fine track control around foundations
Tight urban work means feathering the machine between trenches. A lapped piston block and valve plate hold pressure without internal slip, so the tracks respond smoothly rather than grabbing or dragging.
2. Hardened gears for curb climbs and trench edges
Compact excavators reverse constantly and pull up over curbs and spoil piles. Case‑hardened planetary teeth absorb that load, and controlled backlash keeps the drive quiet on residential streets.
3. Sealed against city dust and washdown water
Urban yards mean dust, mud and pressure washing. Fresh shaft and housing seals keep that grit out of the lube — the detail that decides whether the drive lasts or fails early.
4. One bolt‑in unit for a fast turnaround
Motor and reduction arrive mated and bench‑checked. The fitter swaps the whole drive rather than building it on the floor, which matters when a machine on a tight contract schedule is parked.
5. OEM‑spec build without the dealer price
Renewing the drive to original tolerances restores the R110D‑7's mobility at a fraction of a Hyundai dealer exchange unit, with sample and bulk supply for workshops keeping compact Robex machines on the books.
Manufacturing & Quality Control
Parts are machined to Hyundai print, heat‑treated at wear points, and assembled in a clean shop. Each finished drive runs on a hydraulic stand while torque, leakage and noise are logged; units outside spec are reworked before packing. The internals are fogged with preservation oil, ports are plugged, and the assembly ships on shock‑absorbing dunnage.
Frequently Asked Questions
Q1: How does this compare to the larger Robex drives?
A: The R110D‑7 uses a smaller displacement motor than the 20‑ton Robex machines, but the internal layout is the same piston‑plus‑planetary design. It is not interchangeable with the larger drives — the mounting and output differ.
Q2: Is this a left‑hand or right‑hand drive?
A: The design is symmetric for both sides on this platform. If your old unit carries a side‑specific tag, send it across and we will confirm before dispatch.
Q3: What should the operator watch in the first week?
A: Avoid full‑load reversing on curbs for the first shift. Light cycling seats the new gears and seals, then check travel oil level and fitting torque after day one.
Q4: Can this be shipped by express courier?
A: Yes — compact drives like this ship well by air or express, which is often faster and cheaper than sea freight for a single unit. Tell us the destination and we will quote the fastest option.
Q5: What if the part number on my machine is slightly different?
A: Send a photo of the old drive's ID plate and the machine serial number. We cross‑reference against our catalogue and tell you honestly whether it matches, even if that means we cannot supply it.