31M8-40010 transmisión final para Hyundai R55 miniexcavadora
Si decide comprar maquinaria a un precio inferior, póngase en contacto con el verdadero vendedor. Recopile toda la información que le sea posible sobre el propietario de la maquinaria. Una forma de engaño es presentarse como empresa. En caso de sospecha, infórmenos mediante el formulario de comentarios y sugerencias para que lo comprobemos.
Antes de confirmar una compra, revise detenidamente varias ofertas de venta para ver cuál es el precio medio del equipo elegido. Si el precio de la oferta que le interesa es mucho menor que el de ofertas similares, piénselo dos veces. Una diferencia de precio significativa puede conllevar a defectos ocultos o a un intento de fraude por parte del vendedor.
No compre productos cuyo precio diste mucho del precio medio de equipos similares.
No acepte compromisos dudosos o mercancías con prepago. Si no lo tiene claro, no dude en solicitar aclaraciones, pida fotos adicionales y documentos del equipo, compruebe la autenticidad de los mismos y pregunte todo lo necesario.
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»
- Dicha solicitud debe alarmarle, ya que en la mayoría de los casos se trata de fraudes.
- Transferencia a una cuenta de una empresa con un nombre similar
- Tenga cuidado, ya que los estafadores pueden ocultarse tras la identidad de empresas reconocidas, realizando modificaciones mínimas en su nombre. No transfiera dinero si tiene dudas sobre el nombre de la empresa.
- 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
Rumanía
Rumanía
Rumanía
Product Overview
The Hyundai R55 is a 5.5‑ton compact excavator that punches far above its weight — used for utility trenching, site backfilling, demolition support and landscaping, often on rental terms where it runs every working day. The hydraulic motor and planetary reducer under each track, carrying part numbers 31M8‑40010 and 31M8‑40020, is what turns the machine's hydraulic pressure into the slow, strong pulling force that moves it across every kind of ground. On a rental‑class machine worked by changing operators, wear tends to come fast: mismatched track speeds, a warm drive housing, a rising note from the track motor, and eventually a side that hesitates rather than pulls. Waiting out those symptoms only scores the piston group and reduction gears further. This OEM‑grade drive is built as one matched motor‑and‑reducer assembly, so the worn unit can be unbolted and the new one fitted without cross‑matching parts — important when a rented machine is costing income while it sits.
Core Advantages
1. Pressure‑tight motor internals for even track pull
The piston group, cylinder block and valve plate are finished to close tolerances so the motor holds its pressure rather than leaking internally. That keeps both tracks pushing the same — no drifting, no slow side, no hesitation when the bucket loads up.
2. Hardened reduction gears built for rental‑class hours
A machine worked by different operators sees rough ground, curbs and repeated reversing all shift long. Case‑hardened planetary gears with controlled backlash absorb that load smoothly and quietly, without the hammering wear that shortens cheaper drives.
3. Sealed against the dust and mud of compact sites
Compact excavators work close to the ground, where fine dust and mud splash straight up at the drive. Fitted shaft and housing seals keep contamination out of the motor and gear oil — the single biggest factor in drive longevity.
4. One tested assembly for a fast turnaround
Motor and reducer arrive pre‑assembled and bench‑checked, so the whole drive swaps in one operation. For a rental yard turning machines around, that short bench time is what gets the unit earning again.
5. OEM‑grade quality at a practical repair cost
Renewing the final drive to OEM spec restores the R55's mobility far below the price of a dealer exchange unit, with sample and batch supply for workshops keeping several compact Hyundais on the books.
Manufacturing & Quality Control
The OEM‑grade route follows controlled specifications: material certification, precision machining of housings and gears, case hardening of wear surfaces and clean assembly. Each completed drive runs on a test rig to verify output torque, internal leakage and operating noise before release, and only passing units are packed. Full preservation coating, moisture sealing and shock‑absorbing export casing protect the assembly during transport.
Frequently Asked Questions
Q1: Which part number suits my R55?
A: Compare the references on your existing drive against 31M8‑40010 or 31M8‑40020 and share your machine serial number. Build variants can differ, so we confirm the correct unit before dispatch.
Q2: Is this the complete motor and reducer?
A: Yes — the listing covers the full hydraulic motor with planetary reducer as one assembly, ready to bolt on. Separate components can be checked on request.
Q3: What faults suggest the drive needs replacing?
A: Mismatched track speeds, drifting on flat ground, a warm or noisy track motor and hesitation under load. Inspect early, before debris spreads through the travel circuit.
Q4: What does the warranty cover?
A: Material and workmanship defects are covered. Damage from contaminated oil, debris entering the motor, track obstruction, overload or incorrect installation is excluded — follow the Hyundai service manual for fitting and bleeding.