I have seen replacement rollers at ACE hardware (Wildwood) and I think also at Lowe's (466a). I have not replaced these yet, so I am not familiar with the sizing requirements. Some dry (spray silicone?) lubricant on the tracks MIGHT eliminate or limit the flaking of the aluminum. If you wheels happen to be plastic, try metal ones.
__________________
Pennsylvania, for 60+ years, most recently, Allentown, now TV. 
|