XCMG QUY50 Crawler Crane Track Roller: Application and Matching Guide
The lower track roller supports machine weight and guides the crawler chain; tread and flange wear influence tracking and load distribution.
For a faster quotation: send xcmg quy50 model and undercarriage serial range, single or double flange roller style, tread diameter, overall width and bolt centers, together with the machine model and installation photo.
QUY50 Roller Tread, Flange and Mounting Verification
XCMG QUY50 model and undercarriage serial range
single or double flange roller style
tread diameter, overall width and bolt centers
installed position and mating track-chain dimensions
Where This Part Is Used
Mounted along the lower crawler frame of compatible XCMG QUY50 cranes to carry track-chain load.
Failure Clues and Workshop Check
Oil leakage, flat spots, seized rotation or uneven flange wear may indicate roller failure or broader track-frame misalignment.
Installation and Handover
Support the crane safely, inspect mounting seats and bolts, compare roller height across the frame and check chain tension after replacement.
Related Parts and Technical Reference
See XCMG QUY50 crawler-crane carrier roller when checking the surrounding system. The highlighted link helps buyers compare related components without leaving the parts catalogue.
Buyer FAQ
What must be confirmed before ordering this track roller?
Confirm xcmg quy50 model and undercarriage serial range; single or double flange roller style; tread diameter, overall width and bolt centers; installed position and mating track-chain dimensions.
Should one worn roller be replaced alone?
It may be, but all rollers, chain links, sprocket and idler should be measured for a balanced undercarriage decision.
Export Packing
The heavy roller is bolted or blocked in a reinforced crate with machined surfaces rust-protected.
