What is the undercarriage of a mini excavator?

The undercarriage consists of all components that allow the mini excavator to move on tracks. It includes lower rollers, upper rollers, the sprocket, the idler wheel, and the track assembly (chain and pads). This system transmits power from the travel motor to the ground and supports the machine's weight while moving. It is one of the most heavily used assemblies of the machine, especially on abrasive or wet terrain.

What is the name of the bearing in a mini excavator's undercarriage?

The term commonly used is "undercarriage" or "track system." Each component has its own designation: the sprocket is the drive sprocket, lower rollers support the track on the ground, upper rollers guide it higher up. The entire assembly is sometimes referred to as the "carrier frame" in manufacturer manuals, but construction professionals generally use "undercarriage" or simply "track."

What are common undercarriage problems on a mini excavator?

The most frequent failures are oil leaks on the rollers (failed seal), worn sprocket teeth (loss of traction), excessive track elongation, and track slippage. In muddy terrain, hardened dirt buildup around the sprocket and rollers accelerates these failures. Regular cleaning and track tension checks before each job help prevent most breakdowns.

Used Mini Excavator Undercarriage

Idler for HITACHI ZX160LC-6
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Idler for HITACHI ZX210-3
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Idler for HITACHI ZX210-3
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Idler for HITACHI ZX210LC-3
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Idler for HITACHI ZX250LCN-3
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Idler for HYUNDAI R145LCR9
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Idler for JCB JS160NLC
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Idler for JCB JS260LC
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Idler for JCB JS260LC
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Idler for JCB JS330XD
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Idler for KOBELCO SK235SR
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Idler for KOMATSU PC210 -8
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Idler for KOMATSU PC210 -8
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Idler for KOMATSU PC228USLC-10
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Idler for KOMATSU PC228USLC-8
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Idler for KOMATSU PC600-7
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Idler for KUBOTA KX080-4
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Idler for KUBOTA KX161
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Idler for LIEBHERR LR622
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Idler for LIEBHERR LR622
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Idler for LIEBHERR R906
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Idler for LIEBHERR R926LC
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Idler for LIEBHERR R934BHDSL
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Idler for LIEBHERR R934C
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Idler for LIEBHERR R934CHDS
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Idler for LIEBHERR R934HDS
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Idler for LIEBHERR R934HDSL
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Idler for LIEBHERR R942LI
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Idler for LIEBHERR R944B
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Used Mini Excavator Undercarriage: Protecting Rollers and Sprocket in Muddy Conditions - page 14

1148 produits disponibles

Idler for HITACHI ZX160LC-6

Idler for HITACHI ZX210-3

Idler for HITACHI ZX210-3

Idler for HITACHI ZX210LC-3

Idler for HITACHI ZX250LCN-3

Idler for HITACHI ZX250LCN-3

Idler for HYUNDAI R145LCR9

Idler for JCB JS160NLC

Idler for JCB JS260LC

Idler for JCB JS260LC

Idler for JCB JS330XD

Idler for KOBELCO SK235SR

Idler for KOMATSU PC210 -8

Idler for KOMATSU PC210 -8

Idler for KOMATSU PC228USLC-10

Idler for KOMATSU PC228USLC-10

Idler for KOMATSU PC228USLC-8

Idler for KOMATSU PC228USLC-8

Idler for KOMATSU PC600-7

Idler for KOMATSU PC600-7

Idler for KUBOTA KX080-4

Idler for KUBOTA KX080-4

Idler for KUBOTA KX161

Idler for LIEBHERR LR622

Idler for LIEBHERR LR622

Idler for LIEBHERR R906

Idler for LIEBHERR R926LC

Idler for LIEBHERR R934BHDSL

Idler for LIEBHERR R934C

Idler for LIEBHERR R934CHDS

Idler for LIEBHERR R934CHDS

Idler for LIEBHERR R934HDS

Idler for LIEBHERR R934HDS

Idler for LIEBHERR R934HDSL

Idler for LIEBHERR R942LI

Idler for LIEBHERR R944B