2050/60/70/80 y-axis right pulley
Common Y-Axis Pulley Issues & Fixes

• Belt Riding Against the Pulley Flange: A common complaint on platforms like the is that the Y-axis belt shifts hard to the right and rubs against the pulley wall. This occurs if the pulley axle is not perfectly perpendicular to the belt path. A user on  noted that loosening the tensioner bolts too much during standard maintenance can tilt the pulley bracket, causing severe tracking problems. 
• Squeaking or Grinding Noises: Debris accumulation or dry bearings in the right idler pulley frequently cause persistent friction noise
• Cleaning Maintenance: You can resolve minor squeaks or shifting by spraying isopropyl alcohol or a light lubricant (like WD-40) onto a cotton swab and wiping the inner rim of the pulley while moving the belt back and forth. 
• Official Parts Replacement: If the internal bearing fails completely, you will need to swap it out. For enclosed printers (X1/P1 series), this means replacing the For bed-slinging models, it requires a dedicated