XCMG QUY150 Crawler Crane Support Roller
This support-roller listing is for XCMG QUY150 crawler crane undercarriage service. The legacy product name does not by itself confirm whether the required roller works on the lower load-bearing track run or the upper return track. The installed position and dimensions must therefore be verified before quotation.
Product Reference and Application
Brand application: XCMG crawler crane parts
Machine reference: QUY150 crawler crane
Component reference: Undercarriage support roller
Identification: Confirm position, dimensions, mounting interface and serial number
Undercarriage Support Role
A lower roller carries the track chain and machine load along the ground-contact side, while an upper carrier-type roller guides the return section of the chain. These positions use different geometry and loading. A visually similar roller should not be ordered until its mounting position has been established.
Information Required for Verification
Send the QUY150 model and serial number, a wide photograph showing the roller location on the crawler frame and close-ups of the roller and mounting points. Measure the tread diameter, flange diameter, body width, overall length and bolt or shaft interface. Include any stamped or cast reference.
Inspection and Replacement Guidance
Check for oil leakage, seized rotation, excessive radial or axial play, damaged flanges and uneven tread wear. Inspect the track chain, adjacent rollers, idler, sprocket and track alignment. Replacement and track adjustment should follow the XCMG service procedure and be performed using suitable lifting and support equipment.
Packing for Heavy Parts
The roller is blocked against movement, protected at machined surfaces and secured to a reinforced pallet or plywood case. Packing is selected for the part weight, order quantity and international transport route.
Frequently Asked Questions
Does “support roller” confirm the installation position?
No. A photo showing the roller on the crawler frame is needed to distinguish the upper and lower positions.
Can QUY150 model information replace measurements?
Model information helps, but serial data, mounting details and dimensions provide a safer match.
What wear signs should be checked?
Look for leakage, seized movement, damaged flanges, excessive play and uneven contact surfaces.
