XCMG QUY50 Crawler Crane Carrier Roller: Application and Matching Guide
The carrier or top roller supports the return side of the crawler chain and helps maintain alignment between the idler and sprocket.
For a faster quotation: send xcmg quy50 model and serial range, roller tread and flange profile, bracket style and bolt-center spacing, together with the machine model and installation photo.
QUY50 Top-Roller Bracket, Tread and Track Alignment
XCMG QUY50 model and serial range
roller tread and flange profile
bracket style and bolt-center spacing
shaft, overall width and upper-frame position
Where This Part Is Used
Installed on the upper crawler frame of compatible XCMG QUY50 crawler cranes.
Failure Clues and Workshop Check
A seized, leaking or deeply worn carrier roller can make the returning chain sag, wander or strike the frame.
Installation and Handover
Clean and measure the bracket seat, torque mounting bolts, confirm free rotation and set track tension after checking chain alignment.
Related Parts and Technical Reference
See XCMG QUY50 crawler-crane track 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 carrier roller?
Confirm xcmg quy50 model and serial range; roller tread and flange profile; bracket style and bolt-center spacing; shaft, overall width and upper-frame position.
Is a carrier roller the same as a track roller?
No. The carrier roller supports the upper return chain, while track rollers carry machine weight on the lower frame.
Export Packing
The roller and bracket are secured against movement, with shaft and tread surfaces protected from corrosion and impact.
